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Antigorite

A valid IMA mineral species - grandfathered

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Photos of Antigorite (202)Discuss Antigorite

Antigorite Gallery Search Photos of Antigorite

Edit Antigorite Add Synonym Edit CIF structures Clear Cache

Antigorite

Tinos Island, Tinos, South Aegean, Greece

Antigorite

Perdões, Minas Gerais, Brazil

Antigorite

Mine Lac d'Amiante, Saint-Joseph-de-Coleraine, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada

Antigorite

Tinos Island, Tinos, South Aegean, Greece

Antigorite

Perdões, Minas Gerais, Brazil

Antigorite

Mine Lac d'Amiante, Saint-Joseph-de-Coleraine, Les Appalaches RCM, Chaudière-Appalaches, Québec, Canada

Antigorite

Tinos Island, Tinos, South Aegean, Greece

Antigorite

Perdões, Minas Gerais, Brazil

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About AntigoriteHide

Formula:

Mg₃(Si₂O₅)(OH)₄

Colour:

Green, green-blue, white, brown, black

Lustre:

Vitreous

Hardness:

3½ - 4

Specific Gravity:

2.5 - 2.6

Crystal System:

Monoclinic

Member of:

Serpentine Subgroup > Kaolinite-Serpentine Group

Name:

Named in 1840 by Mathias Eduard Schweizer for the type locality, Valle di Antigorio, Domodossola, Piedmont, Italy, although there is a small question if he were on the Italian side of the border.

Co-Type Localities:

ⓘ Antigorio Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
ⓘ Geisspfad area, Binn, Goms, Valais, Switzerland

Polymorph of:

Chrysotile, Lizardite

Antigorite is a higher temperature serpentine mineral, forming only above 250°C (Wenner & Taylor, 1974; Evans, 1977); chrysotile and lizardite are lower temperature polymorphs.

Antigorite is not the most common serpentine mineral, although it is a common member of the group. Volumetrically, lizardite is the most abundant serpentine mineral.

The type material was collected near the border between Switzerland and Italy from outcrops of the Geisspfad serpentinite. It is not clear in which country the material was sampled.

It may have a modular structure and m = 16 and m = 17 polysomes are known.

Visit gemdat.org for gemological information about Antigorite.

Unique IdentifiersHide

Mindat ID:

260

Long-form identifier:

mindat:1:1:260:6

IMA Classification of AntigoriteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

IMA status notes:

Redefined by the IMA

IMA Formula:

Mg₃Si₂O₅(OH)₄

Approval history:

Redefined 1998 s.p.

Classification of AntigoriteHide

Strunz-mindat (2026):

9.ED.15

9 : SILICATES (Germanates)
E : Phyllosilicates
D : Phyllosilicates with kaolinite layers composed of tetrahedral and octahedral nets

Dana 8th ed.:

71.1.2a.1

71 : PHYLLOSILICATES Sheets of Six-Membered Rings
1 : Sheets of 6-membered rings with 1:1 layers

Hey's CIM Ref.:

14.4.15

14 : Silicates not Containing Aluminum
4 : Silicates of Mg

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference for Standard
Atg	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Atg	Kretz (1983)	Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
Atg	Siivolam & Schmid (2007)	Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
Atg	Whitney & Evans (2010)	Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
Atg	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download
Atg	Warr (2020)	Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of AntigoriteHide

Lustre:

Vitreous

Transparency:

Transparent

Colour:

Green, green-blue, white, brown, black

Streak:

Greenish white

Hardness:

3½ - 4 on Mohs scale

Cleavage:

Distinct/Good
[001] good

Fracture:

Splintery

Density:

2.5 - 2.6 g/cm³ (Measured) 2.52 g/cm³ (Calculated)

Optical Data of AntigoriteHide

Type:

Biaxial (-)

RI values:

n_α = 1.555 - 1.567 n_β = 1.56 - 1.573 n_γ = 1.56 - 1.573

2V:

Measured: 20° to 50°

Max. Birefringence:

δ = 0.005 - 0.006
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

Low (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized biaxial acute bisectrix (Bxa) interference figure - the conoscopic view for a grain cut perpendicular to the acute bisectrix, using this mineral's 2V. The two small white dots mark the melatopes - the points where the two optic axes emerge - and are shown only when they fall within the field of view. The coloured bands are isochromatics, and the dark bands are isogyres.

Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.

Thickness: 30 µm

Stage rotation: 0°

Dispersion:

weak

Chemistry of AntigoriteHide

Mindat Formula:

Mg₃(Si₂O₅)(OH)₄

Element Weights:

Element	% weight
O	51.963 %
Mg	26.312 %
Si	20.270 %
H	1.455 %

Calculated from ideal end-member formula.

Elements listed:

H, Mg, O, Si - search for minerals with similar chemistry

Common Impurities:

Ni,Al,Mn

Crystallography of AntigoriteHide

Crystal System:

Monoclinic

Class (H-M):

m - Domatic

Space Group:

Cell Parameters:

a = 43.53 Å, b = 9.25 Å, c = 7.26 Å
β = 91.13°

Ratio:

a:b:c = 4.706 : 1 : 0.785

Unit Cell V:

2,922.69 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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Unit Cell | Unit Cell Packed
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CIF File Best | x | y | z | a | b | c

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Year	Temp (K)
0004123	Antigorite	Capitani G C, Mellini M (2006) The crystal structure of a second antigorite polysome (m = 16), by single-crystal synchrotron diffraction American Mineralogist 91 394-399	2006	293
0003192	Antigorite	Capitani G, Mellini M (2004) The modulated crystal structure of antigorite: The m = 17 polysome American Mineralogist 89 147-158	2004	293
0019084	Antigorite	Dodony I, Posfai M, Buseck P R (2002) Revised structure models for antigorite: An HRTEM study American Mineralogist 87 1443-1457	2002	293
0019083	Antigorite	Dodony I, Posfai M, Buseck P R (2002) Revised structure models for antigorite: An HRTEM study American Mineralogist 87 1443-1457	2002	293
0019082	Antigorite	Dodony I, Posfai M, Buseck P R (2002) Revised structure models for antigorite: An HRTEM study American Mineralogist 87 1443-1457	2002	293
0005589	Antigorite	Uehara S (1998) TEM and XRD study of antigorite superstructures The Canadian Mineralogist 36 1595-1605	1998	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Antigorite'
loop_
_publ_author_name
'Capitani G C'
'Mellini M'
_journal_name_full 'American Mineralogist'
_journal_volume 91 
_journal_year 2006
_journal_page_first 394
_journal_page_last 399
_publ_section_title
;
 The crystal structure of a second antigorite polysome (m = 16),
 by single-crystal synchrotron diffraction
;
_database_code_amcsd 0004123
_chemical_formula_sum 'Mg45 Si32 O138 H58'
_cell_length_a 81.664
_cell_length_b 9.255
_cell_length_c 7.261
_cell_angle_alpha 90
_cell_angle_beta 91.409
_cell_angle_gamma 90
_cell_volume 5486.207
_exptl_crystal_density_diffrn      2.578
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Mg1A   0.00000   0.00000   0.50000   0.01900
Mg1B   0.00000   0.66490   0.50000   0.02000
Mg2A   0.96680   0.50000   0.46290   0.01900
Mg2B   0.96650   0.83370   0.45980   0.02000
Mg3A   0.93320   0.00000   0.43010   0.01900
Mg3B   0.93340   0.66480   0.43080   0.02000
Mg4A   0.90030   0.50000   0.41650   0.01800
Mg4B   0.90010   0.83160   0.41600   0.01800
Mg5A   0.86690   0.00000   0.41160   0.02000
Mg5B   0.86710   0.66580   0.41130   0.01700
Mg6A   0.83380   0.50000   0.41260   0.02300
Mg6B   0.83370   0.83370   0.41810   0.01800
Mg7A   0.80050   0.00000   0.43010   0.01800
Mg7B   0.80030   0.66620   0.43960   0.02300
Mg8A   0.76690   0.50000   0.48120   0.02100
Mg8B   0.76680   0.83460   0.47270   0.02100
Si1   0.98490   0.83350   0.86760   0.02100
Si2   0.95340   0.66640   0.82750   0.02100
Si3   0.92160   0.83360   0.80590   0.02000
Si4   0.88950   0.66640   0.79580   0.02100
Si5   0.85740   0.83360   0.79420   0.02100
Si6   0.82540   0.66640   0.80150   0.02200
Si7   0.79380   0.83360   0.82370   0.02400
Si8   0.76190   0.66650   0.86260   0.02500
OA1   0.98810   0.83030   0.64910   0.02600
OA2   0.95500   0.66370   0.60710   0.01800
OA3   0.92170   0.83210   0.58410   0.02100
OA4   0.88930   0.66860   0.57120   0.02600
OA5   0.85690   0.83920   0.57330   0.02200
OA6   0.82380   0.67130   0.57990   0.02200
OA7   0.79090   0.83450   0.60260   0.02100
OA8   0.75750   0.66810   0.64740   0.02700
OB1A   0.98070   0.00000   0.93910   0.03500
OB2A   0.95110   0.50000   0.90480   0.02800
OB3A   0.92070   0.00000   0.88520   0.03200
OB4A   0.88870   0.50000   0.87200   0.03000
OB5A   0.85640   0.00000   0.87360   0.03200
OB6A   0.82460   0.50000   0.88190   0.03300
OB7A   0.79340   0.00000   0.90530   0.03400
OB8A   0.76310   0.50000   0.94840   0.06100
OB0B   0.00000   0.77780   0.00000   0.02700
OB1B   0.96970   0.73330   0.92660   0.02500
OB2B   0.93790   0.75900   0.89920   0.02100
OB3B   0.90600   0.74380   0.88150   0.02300
OB4B   0.87410   0.75700   0.87300   0.02400
OB5B   0.84230   0.74120   0.87690   0.02400
OB6B   0.81070   0.76020   0.89090   0.03000
OB7B   0.77980   0.74160   0.92350   0.04300
OB8B   0.75000   0.75000   0.00000   0.06300
OV1   0.98820   0.50000   0.63850   0.01900
OV2   0.95380   0.00000   0.60490   0.03100
OV3   0.92280   0.50000   0.57870   0.02200
OV4   0.88940   0.00000   0.56890   0.01800
OV5   0.85590   0.50000   0.56110   0.02000
OV6   0.82390   0.00000   0.57770   0.02400
OV7   0.79100   0.50000   0.60510   0.03400
OV8   0.75700   0.00000   0.62480   0.01900
OW1A   0.97850   0.00000   0.34530   0.03300
OW1B   0.97880   0.67000   0.34120   0.01800
OW2A   0.94610   0.50000   0.30920   0.03400
OW2B   0.94470   0.83600   0.30590   0.01900
OW3A   0.91090   0.00000   0.28880   0.01500
OW3B   0.91180   0.67070   0.28410   0.02800
OW4A   0.87810   0.50000   0.27400   0.02500
OW4B   0.87800   0.83050   0.28070   0.02300
OW5A   0.84490   0.00000   0.28200   0.02600
OW5B   0.84420   0.66740   0.27940   0.02300
OW6A   0.81040   0.50000   0.29520   0.02200
OW6B   0.81070   0.83180   0.29660   0.02500
OW7A   0.77650   0.00000   0.31980   0.02800
OW7B   0.77650   0.66970   0.33070   0.02400
HI1   0.98820   0.50000   0.77200   0.02300
HI2   0.95380   0.00000   0.73700   0.02300
HI3   0.92280   0.50000   0.70400   0.02300
HI4   0.88940   0.00000   0.70000   0.02300
HI5   0.85590   0.50000   0.69200   0.02300
HI6   0.82390   0.00000   0.70300   0.02300
HI7   0.79100   0.50000   0.73400   0.02300
HI8   0.75700   0.00000   0.75600   0.02300
HH1A   0.97850   0.00000   0.20400   0.04700
HH1B   0.97880   0.67000   0.19100   0.04700
HH2A   0.94610   0.50000   0.18100   0.04700
HH2B   0.94470   0.83600   0.16800   0.04700
HH3A   0.91090   0.00000   0.14900   0.04700
HH3B   0.91180   0.67070   0.14100   0.04700
HH4A   0.87810   0.50000   0.13500   0.04700
HH4B   0.87800   0.83050   0.14700   0.04700
HH5A   0.84490   0.00000   0.13800   0.04700
HH5B   0.84420   0.66740   0.14100   0.04700
HH6A   0.81040   0.50000   0.15200   0.04700
HH6B   0.81070   0.83180   0.16400   0.04700
HH7A   0.77650   0.00000   0.15700   0.04700
HH7B   0.77650   0.66970   0.19200   0.04700

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
7.28 Å	(100)
7.21 Å	(10)
3.623 Å	(60)
3.589 Å	(10)
2.523 Å	(30)
2.169 Å	(10)
2.150 Å	(10)
1.558 Å	(10)

Locality:

Antigorio Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere	>4.45
13 : Hadean serpentinization
Stage 5: Initiation of plate tectonics	<3.5-2.5
38 : Ophiolites
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)

Type Occurrence of AntigoriteHide

Co-Type Localities:

ⓘ Antigorio Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
ⓘ Geisspfad area, Binn, Goms, Valais, Switzerland

General Appearance of Type Material:

Massive, scales, plates.

Place of Conservation of Type Material:

Eidgenössische Technische Hochschule, Zürich, Switzerland, number Wi 4868.

Geological Setting of Type Material:

Serpentinite.

Associated Minerals at Type Locality:

'Fayalite-Forsterite Series'

Synonyms of AntigoriteHide

Faserserpentin (in part)

Other Language Names for AntigoriteHide

Dutch:Antigoriet

French:Antigorite

German:Antigorit
Baltimorit
Blätterserpentin
Eisengymnit
Porcellophit
Septeantigorit
Zermattit

Norwegian:Antigoritt

Russian:Антигорит

Simplified Chinese:叶蛇纹石

Spanish:Antigorita
Baltimorita
Gymnita
Porcellophita
Septeantigorita
Zermattita

Varieties of AntigoriteHide

Al-Antigorite	An unnecessary name for an aluminium-bearing variety of Antigorite.
Andes Jade	Marketing term for a tough lapidary-quality serpentine (composed dominantly of antigorite, with 21 to 31% lizardite, minor magnetite and Mg-carbonate) from Argentina. Color varies through many shades of green, yellowish, to almost black.
Bowenite	Originally described from Dexter Quarry (Dexter Lime Quarry), Lime Rock, Lincoln, Providence Co., Rhode Island, USA.
Chrome antigorite	A variety of antigorite containing some chromium. Compare with Chrome antigorit, a hypothetical chlorite group mineral.
Jenkinsite	A ferroan variety of antigorite. Originally found at "O'Neil's mine near Monroe, Orange County, New York."
Vorhauserite	Medium to dark brown coloured variety of serpentine (antigorite) containing manganese.
Webskyite	Greenish black fine-grained replacement of antigorite after a calcian forsterite. Named in 1887, but soon after (1889), webskyite was believed to be picrite or antigorite. In 1954, Kourimsky and Satava found a mineral from that locality was dominantly a...
Williamsite	A translucent, pale apple-green variety of antigorite.

Relationship of Antigorite to other SpeciesHide

Member of:

Serpentine Subgroup > Kaolinite-Serpentine Group

Other Members of Serpentine Subgroup:

Amesite	Mg₂Al(AlSiO₅)(OH)₄	Tric. 1 : P1
Berthierine	(Fe²⁺,Fe³⁺,Al)₃(Si,Al)₂O₅(OH)₄	Mon. m : Bm
Brindleyite	(Ni,Al)₃(Si,Al)₂O₅(OH)₄	Mon.
Caryopilite	Mn²⁺₃Si₂O₅(OH)₄	Mon.
Chrysotile	Mg₃(Si₂O₅)(OH)₄	Mon. m : Bb
Cronstedtite	Fe²⁺₂Fe³⁺((Si,Fe³⁺)₂O₅)(OH)₄	Trig. 3m : P31m
Fraipontite	(Zn,Al)₃((Si,Al)₂O₅)(OH)₄	Mon.
Guidottiite	Mn₂Fe³⁺(Fe³⁺SiO₅)(OH)₄	Hex. 6 : P6₃
Kellyite	Mn²⁺₂Al(AlSiO₅)(OH)₄	Hex. 6 : P6₃
Lizardite	Mg₃(Si₂O₅)(OH)₄	Trig. 3m : P31m
Népouite	Ni₃Si₂O₅(OH)₄	Orth.
Pecoraite	Ni₃(Si₂O₅)(OH)₄	Mon.

Common AssociatesHide

Associations Based on Photo Data:

57 photos of Antigorite associated with Magnetite	Fe²⁺Fe³⁺₂O₄
24 photos of Antigorite associated with Calcite	CaCO₃
24 photos of Antigorite associated with Magnesite	MgCO₃
22 photos of Antigorite associated with Dolomite	CaMg(CO₃)₂
21 photos of Antigorite associated with 'Serpentinite'
18 photos of Antigorite associated with Pyroaurite	Mg₆Fe³⁺₂(OH)₁₆[CO₃] · 4H₂O
16 photos of Antigorite associated with Chondrodite	Mg₅(SiO₄)₂F₂
13 photos of Antigorite associated with Chrysotile	Mg₃(Si₂O₅)(OH)₄
13 photos of Antigorite associated with Chromite	Fe²⁺Cr³⁺₂O₄
13 photos of Antigorite associated with Serpentine Subgroup	D₃[Si₂O₅](OH)₄

Related Minerals - Strunz-mindat Grouping Hide

9.ED.	'Clinochrysotile'	Mg₃(Si₂O₅)(OH)₄	Mon. 2/m
9.ED.05	Dickite	Al₂(Si₂O₅)(OH)₄	Mon. m : Bb
9.ED.05	Nacrite	Al₂(Si₂O₅)(OH)₄	Mon. m : Bb
9.ED.05	Kaolinite	Al₂(Si₂O₅)(OH)₄	Tric. 1 : P1
9.ED.05	Odinite	(Fe,Mg,Al,Fe,Ti,Mn)_2.4((Si,Al)₂O₅)(OH)₄	Mon. m : Bm
9.ED.10	Halloysite	Al₂Si₂O₅(OH)₄ · n(H₂O)	Mon. m : Bb
9.ED.10	Hisingerite	Fe³⁺₂(Si₂O₅)(OH)₄ · 2H₂O	Mon.
9.ED.10	'Hydrohalloysite'	Al₂Si₂O₅(OH)₄ · 2H₂O	Mon. m
9.ED.15	Brindleyite	(Ni,Al)₃(Si,Al)₂O₅(OH)₄	Mon.
9.ED.15	Fraipontite	(Zn,Al)₃((Si,Al)₂O₅)(OH)₄	Mon.
9.ED.15	Népouite	Ni₃Si₂O₅(OH)₄	Orth.
9.ED.15	Pecoraite	Ni₃(Si₂O₅)(OH)₄	Mon.
9.ED.15	Guidottiite	Mn₂Fe³⁺(Fe³⁺SiO₅)(OH)₄	Hex. 6 : P6₃
9.ED.15	Lizardite	Mg₃(Si₂O₅)(OH)₄	Trig. 3m : P31m
9.ED.15	Berthierine	(Fe²⁺,Fe³⁺,Al)₃(Si,Al)₂O₅(OH)₄	Mon. m : Bm
9.ED.15	Kellyite	Mn²⁺₂Al(AlSiO₅)(OH)₄	Hex. 6 : P6₃
9.ED.15	Cronstedtite	Fe²⁺₂Fe³⁺((Si,Fe³⁺)₂O₅)(OH)₄	Trig. 3m : P31m
9.ED.15	Caryopilite	Mn²⁺₃Si₂O₅(OH)₄	Mon.
9.ED.15	Amesite	Mg₂Al(AlSiO₅)(OH)₄	Tric. 1 : P1
9.ED.15	Greenalite	(Fe²⁺,Fe³⁺)_2-3Si₂O₅(OH)₄	Mon.
9.ED.15	Manandonite	Li₂Al₄(Si₂AlB)O₁₀(OH)₈	Orth. 222 : C222₁
9.ED.20	Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1	Orth.
9.ED.20	Neotocite	(Mn,Fe)SiO₃ · H₂O (?)	Amor.
9.ED.20	Allophane	(Al₂O₃)(SiO₂)_1.3-2 · 2.5-3H₂O	Amor.
9.ED.20	Imogolite	Al₂SiO₃(OH)₄
9.ED.25	Bismutoferrite	Fe³⁺₂Bi(SiO₄)₂(OH)	Mon. m : Bm
9.ED.25	Chapmanite	Fe³⁺₂Sb³⁺(Si₂O₅)O₃(OH)	Mon. m : Bm
9.ED.30	'Pianlinite'	Al₂Si₂O₆(OH)₂	Orth.

Other InformationHide

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Antigorite in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Metamorphic rock
- Meta-igneous rock
  - Serpentinite
    - Antigorite schist
    - Antigoritite

Internet Links for AntigoriteHide

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

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References for AntigoriteHide

Reference List:

Schweizer, Eduard (1840) Ueber den Antigorit, ein neues Mineral. Annalen der Physik und Chemie, 125. 595-599 doi:10.1002/andp.18401250415

Zussman, J. (1954) Investigation of the crystal structure of antigorite. Mineralogical Magazine and Journal of the Mineralogical Society, 30 (227) 498-512 doi:10.1180/minmag.1954.030.227.02

Kunze, Günther (1956) Die gewellte Struktur des Antigorits, I. Zeitschrift für Kristallographie - Crystalline Materials, 108 (1) 82-107 doi:10.1524/zkri.1956.108.1-2.82

KUNZE, GÜNTHER (1958) Die gewellte Struktur des Antigorits. II. Zeitschrift für Kristallographie, 110 (1-6). 282-320 doi:10.1524/zkri.1958.110.16.282

Kunze, Günther (1958) Die gewellte Struktur des Antigorits. III. Zeitschrift für Kristallographie, 110 (1). 282-320 doi:10.1524/zkri.1958.110.1-6.282

Kunze, Günther (1959) Fehlordnungen des Antigorits. Zeitschrift für Kristallographie, 111 (1). 190-212 doi:10.1524/zkri.1959.111.1-6.190

Kunze, V.G. (1961) Antigorit. Strukturtheoretische Grundlagen und ihre praktische Bedeutung für die weitere Serpentin-Forschung. Fortschritte der Mineralogie: 39: 206-324.

Frondel, Clifford (1962) Ferroan antigorite (Jenkinsite) American Mineralogist, 47 (5-6) 783-785

IMA (1967) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine and Journal of the Mineralogical Society, 36 (277) 131-136 doi:10.1180/minmag.1967.036.277.20

Page, Norman J. (1968) Chemical differences among the serpentine "polymorphs". American Mineralogist, 53 (1-2) 201-215

Whittaker, E. J. W., Wicks, F. J. (1970) Chemical differences among the serpentine "polymorphs": A discussion. American Mineralogist, 55 (5-6) 1025-1047

Wenner, David B, Taylor, Hugh P (1974) D/H and O18/O16 studies of serpentinization of ultramaflc rocks. Geochimica et Cosmochimica Acta, 38 (8) 1255-1286 doi:10.1016/0016-7037(74)90120-3

Wicks, F.J. and Whittaker, E.J.W. (1975) A reappraisal of the structures of the serpentine minerals. Canadian Mineralogist: 13(3): 227-243.

Evans, B.W. (1977) Metamorphism of Alpine Peridotite and Serpentinite. Annual Review of Earth and Planetary Sciences, 5. p.397-447. doi:10.1146/annurev.ea.05.050177.002145

Dungan, M.A. (1979) A microprobe study of antigorite and some serpentine pseudomorphs. The Canadian Mineralogist: 17: 771-784.

Yada, K. (1979) Microstructures of chrysotile and antigorite by high–resolution electron microscopy. The Canadian Mineralogist: 17: 679-691.

Spinnler, G.E. (1985) HRTEM study of antigorite, pyroxene-serpentine reactions and chlorite, 248 p. Ph.D. Thesis, Arizona State University, Tempe, Arizona.

UEHARA, Seiichiro, SHIROZU, Haruo (1985) Variations in chemical composition and structural properties of antigorites. Mineralogical Journal, 12 (7) 299-318 doi:10.2465/minerj.12.299

Mellini, Marcello, Trommsdorff, Volkmar, Compagnoni, Roberto (1987) Antigorite polysomatism: behaviour during progressive metamorphism. Contributions to Mineralogy and Petrology, 97 (2) 147-155 doi:10.1007/bf00371235

Otten, Max T. (1993) High-resolution transmission electron microscopy of polysomatism and stacking defects in antigorite. American Mineralogist, 78 (1-2) 75-84

Uehara, S. and Kamata, K. (1994) Antigorite with a large supercell from Saganoseki, Oita Prefecture, Japan. The Canadian Mineralogist: 32: 93-103.

O'Hanley, D.S., Wicks, F.J. (1995) Conditions of formation of lizardite, chrysotile and antigorite, Cassiar, British Columbia. Canadian Mineralogist, 33, 753-773.

Viti, Cecilia, Mellini, Marcello (1996) Vein antigorites from Elba Island, Italy. European Journal of Mineralogy, 8 (2) 423-434 doi:10.1127/ejm/8/2/0423

Wunder, Bernd, Schreyer, Werner (1997) Antigorite: High-pressure stability in the system MgO-SiO2-H2O (MSH) Lithos, 41 (1) 213-227 doi:10.1016/s0024-4937(97)82013-0

Wunder, Bernd, Baronnet, Alain, Schreyer, Werner (1997) Ab-initio synthesis and TEM confirmation of antigorite in the system MgO-SiO2-H2O. American Mineralogist, 82 (7). 760-764 doi:10.2138/am-1997-7-814

Gaines, Richard V.; Skinner, H. Catherine W.; Foord, Eugene E.; Mason, Brian; Rosenzweig, Abraham; King, Vandall T. (1997) Dana's New Mineralogy (8th ed.). Wiley-Interscience. 1872 pp.

Uehara, S. (1998) TEM and XRD study of antigorite superstructures. The Canadian Mineralogist: 36: 1595-1605.

Wunder, Bernd, Wirth, Richard, Gottschalk, Matthias (2001) Antigorite: Pressure and temperature dependence of polysomatism and water content. European Journal of Mineralogy, 13 (3) 485-495 doi:10.1127/0935-1221/2001/0013-0485

(2001) Antigorite. Handbook of Mineralogy. Mineralogical Society of America

Dódony, István, Pósfai, Mihály, Buseck, Peter R. (2002) Revised structure models for antigorite: An HRTEM study. American Mineralogist, 87 (10) 1443-1457 doi:10.2138/am-2002-1022

Grobéty, Bernard (2003) Polytypes and higher-order structures of antigorite: A TEM study. American Mineralogist, 88 (1) 27-36 doi:10.2138/am-2003-0104

Bromiley, Geoffrey D., Pawley, Alison R. (2003) The stability of antigorite in the systems MgO-SiO2-H2O (MSH) and MgO-Al2O3-SiO2-H2O (MASH): The effects of Al3+ substitution on high-pressure stability. American Mineralogist, 88 (1) 99-108 doi:10.2138/am-2003-0113

Rinaudo, C., Gastaldi, D., Belluso, E. (2003) Characterization of chrysotile, antigorite and lizardite by FT-Raman spectroscopy. The Canadian Mineralogist, 41 (4). 883-890 doi:10.2113/gscanmin.41.4.883

Capitani, Giancarlo, Mellini, Marcello (2004) The modulated crystal structure of antigorite: The m = 17 polysome. American Mineralogist, 89 (1). 147-158 doi:10.2138/am-2004-0117

Auzende, A.-L., Daniel, I., Reynard, B., Lemaire, C., Guyot, F. (2004) High-pressure behaviour of serpentine minerals: a Raman spectroscopic study. Physics and Chemistry of Minerals, 31 (5) 269-277 doi:10.1007/s00269-004-0384-0

Capitani, G. (2005) HRTEM evidence for 8-reversals in the m = 17 antigorite polysome. American Mineralogist, 90 (5) 991-999 doi:10.2138/am.2005.1634

Capitani, G. C. (2006) The crystal structure of a second antigorite polysome (m = 16), by single-crystal synchrotron diffraction. American Mineralogist, 91 (2) 394-399 doi:10.2138/am.2006.1919

Dodony, I., Posfai, M., Buseck, P. R. (2006) Does antigorite really contain 4- and 8-membered rings of tetrahedra? American Mineralogist, 91 (11). 1831-1838 doi:10.2138/am.2006.1971

Hilairet, N., Daniel, I., Reynard, B. (2006) P–V Equations of State and the relative stabilities of serpentine varieties. Physics and Chemistry of Minerals, 33 (8) 629-637 doi:10.1007/s00269-006-0111-0

Roth, P. (2007) Antigorite. in: Minerals first discovered in Switzerland and minerals named after Swiss individuals. Kristallografik Verlag, Achberg, Germany: 34-35.

Capitani, G. C., Mellini, M. (2007) High-resolution transmission electron microscopy (HRTEM) investigation of antigorite polysomes (m = 15 to 18) American Mineralogist, 92 (1) 64-71 doi:10.2138/am.2007.2188

Viti, C. (2010) Serpentine minerals discrimination by thermal analysis. American Mineralogist, 95 (4) 631-638 doi:10.2138/am.2010.3366

Noguchi, N., Moriwaki, T., Ikemoto, Y., and Shinoda, K. (2012) OH group behavior and pressure-induced amorphization of antigorite examined under high pressure and temperature using synchrotron infrared spectroscopy. American Mineralogist: 97: 134-142.

Marquardt, H., Speziale, S., Koch-Müller, M., Marquardt, K., and Capitani, G.C (2015) Structural insights and elasticity of single-crystal antigorite from high-pressure Raman and Brillouin spectroscopy measured in the (010) plane. American Mineralogist: 100: 1932-1939.

SAKAGUCHI, Ilona, KOUKETSU, Yui, MICHIBAYASHI, Katsuyoshi, WALLIS, Simon R. (2020) Attenuated total reflection infrared (ATR–IR) spectroscopy of antigorite, chrysotile, and lizardite. Journal of Mineralogical and Petrological Sciences, 115 (4). 303-312 doi:10.2465/jmps.190807

Fritsch, Emmanuel, Balan, Etienne, Petit, Sabine, Juillot, Farid (2021) Structural, textural, and chemical controls on the OH stretching vibrations in serpentine-group minerals. European Journal of Mineralogy, 33 (4) 447-462 doi:10.5194/ejm-33-447-2021

Ji, Shichao, Huang, Fang, Wang, Shaoze, Gupta, Priyantan, Seyfried, William, Zhang, Hejia, Chu, Xu, Cao, Wentao, ZhangZhou, J (2024) Identifying serpentine minerals by their chemical compositions with machine learning. American Mineralogist, 109 (2) 315-324 doi:10.2138/am-2022-8688

Localities for AntigoriteHide

Showing 1,001 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

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Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Afghanistan
Kabul Shakardara District ⓘ Khair Khana quarry	Collett et al. (2015)

Algeria
Jijel Province ⓘ Texenna ophiolites	Boukaoud et al. (2021)
Skikda Province Collo District ⓘ Collo ultramafic rocks	Laouar et al. (2017)

Antarctica

East Antarctica Queen Maud Land ⓘ Belgica 7904 meteorite	Ikeda (1992)
Queen Fabiola Mountains ⓘ Yamato 000593 Martian meteorite	Gyollai et al. (2016)
West Antarctica ⓘ Adelaide Island	Dewar (1970)

Argentina
Córdoba Province Calamuchita Department Los Reartes District Atos Pampa ⓘ Los Congos ultramafic body	Proenza et al. (2008)
Santa Rosa District ⓘ Los Guanacos ultramafic body	Proenza et al. (2008)
Mendoza Province Las Heras Department Uspallata District ⓘ Bonillas Cord	715-720. Buenos Aires. +1 other reference
ⓘ La Mendocina Mine	715-720. Buenos Aires. +1 other reference
San Juan Province Angaco Department ⓘ Don León Mine	Cardó R. et al. (2012)
Capital Department San Juan city ⓘ Unnamed serpentine quarry	[var: Andes Jade] Dr. Jorge Dascal (Patagonia Minerals)

Atlantic Ocean
ⓘ Iberia Abyssal Plain	Plas (1997)
Mid-Atlantic Ridge complex Atlantis Massif ⓘ Lost City Hydrothermal Field	Beard et al. (2009)

Australia
New South Wales Canbelego Co. Miandetta ⓘ Miandetta Extended Prospect	Gilligan et al. (1995)
Darling Co. Barraba ⓘ Woodsreef Mine (Wood's Reef Mine; Woodsreef Asbestos Mine; Wood'sreef asbestos deposit)	Oskierski et al. (2013)
Macquarie Co. Port Macquarie ⓘ Comboyne Volcanic Province	NSW Geological Survey Report GS 1965/126
ⓘ Rocky Beach	Och et al. (2007)
Parry Co. ⓘ Nundle	Ashley et al. (1988) +1 other reference
Northern Territory Central Desert Region Harts Range (Harts Ranges; Hartz Range; Hartz Ranges) Mt Riddock Station ⓘ Disputed Creek Asbestos Deposit	Thompson (ed)
South Australia Barossa Council Lyndoch ⓘ Smith Talc Asbestos Mine	Fitz Gerald +2 other references
Pastoral Unincorporated Area Mount Freeling Mount Fitton homestead ⓘ Mount Fitton Mines
Tasmania Circular Head municipality Cape Grim district ⓘ Trefoil Island	Sutherland et al. (1967)
Waratah-Wynyard municipality Corinna-Savage River district ⓘ Long Plains Magnetite prospect	R. Bottrill +1 other reference
ⓘ Rocky River mine	Bottrill et al. (2008)
ⓘ Savage River Mines	Bottrill & Taheri +1 other reference
Heazlewood district ⓘ Lord Brassey Mine	Bottrill et al. (2002)
West Coast municipality ⓘ Trial Harbour district	Bottrill et al. (2008)
Zeehan mining district ⓘ Avebury Nickel Deposit (Avebury mine)	Bottrill et al. (2007)
North Dundas ⓘ Renison Bell Mine	Ralph Bottrill unpublished data 2019
West Tamar municipality Beaconsfield district ⓘ Andersons Creek	R Botttrill
Victoria City of Greater Shepparton Murchison ⓘ Murchison meteorite	Peter R. Buseck & Xin Hua (1993)
Western Australia Ashburton Shire Maroonah Station ⓘ Pilbara Green Quarry	Fetherston (2010)
City of Karratha Karratha ⓘ Ruth Well	Marston (1984)
Coolgardie Shire Coolgardie ⓘ Bayleys Reward Gold Mine	Simpson (1948)
Kambalda Kambalda Nickel mines ⓘ Durkin Mine (Durkin Shoot)	Marston (1984)
ⓘ Durkin shaft	Ostwald (1978)
ⓘ Fisher Shoots (Fisher complex)	Marston (1984)
ⓘ Hunt Shoot	Marston (1984)
Juan complex ⓘ Otter Juan Mine	Marston et al. (1980)
ⓘ Otter Shoot Nickel Mine	Marston (1984)
ⓘ Lunnon Shoot	Marston (1984)
ⓘ Victor Shoot	Marston (1984)
St. Ives gold camp ⓘ Beta Hunt Mine	Russell (2024)
ⓘ Foster Shoot	Marston (1984)
ⓘ Lake Cowan Goldfield	Marston (1984)
ⓘ Cameron Shoot (Cameron Ni prospect)	Marston (1984)
ⓘ Duke prospect	Marston (1984)
ⓘ Republican Hill prospect	Marston (1984)
East Pilbara Shire Nullagine ⓘ Otway Ni deposit	Ernst Nickel +3 other references
Shaw River District ⓘ Keep it Dark Mine	Simpson (1948)
Kalgoorlie-Boulder Shire ⓘ Black Swan Mine	Marston (1984) +1 other reference
Broad Arrow Goldfield Bardoc ⓘ Scotia Nickel Mine	Pryce et al. (1974)
ⓘ Windanya Consols Gold Mine (Windanya Half Mile North; Half Mile Reef North)	Simpson (1948)
Paddington (Gudarra) ⓘ Paddington Gold Mine (Paddington 1; Paddington 2)	Booth (1989)
Bulong Goldfield ⓘ Bulong Area magnesite deposits	Feldtmann (1919)
ⓘ Bulong Complex North Ni Mine	Moeskops (1977)
ⓘ Bulong Ni Mine	Moeskops et al. (1977)
Kalgoorlie-Boulder ⓘ Kalgoorlie Consolidated Gold Mines	Simpson (1948)
Mount Monger Goldfield Mount Monger ⓘ Carnilya Hill Ni Mine	Marston (1984)
ⓘ Lass O'Gowrie Gold Mine	Simpson (1948)
Laverton Shire Laverton ⓘ Windarra Ni Mine (Mount Windarra; Windarra; Discovery gossan; Poseidon deposit)	Marston (1984)
ⓘ South Windarra deposit	Marston (1984)
Leonora Shire Agnew Goldfield (Lawlers) ⓘ Cox-Crusader Gold Mine	www.portergeo.com.au (2007)
Leinster ⓘ Perseverance Mine	Econ Geol (1988)
ⓘ Weebo Bore Ni prospect (Weebo)	Marston (1984)
Yakabindie Station ⓘ Six Mile Well Pit	Barnes (2007)
Meekatharra Shire Meekatharra Meekatharra Goldfield ⓘ Fenian Gold Mine	Simpson (1948)
ⓘ Ingliston Consols Gold Mine (Ingliston Consols Extended; Ingliston Consols South)	Simpson (1948)
ⓘ Ingliston Extended Gold Mine (Ingliston; Ingliston Extended North; New Ingliston; Ingliston Extended East; Manchuria; Ingliston Extended South)	Simpson (1948)
Sylvania Station ⓘ Coobina Chromite Mine (Jimblebah; Jimblebar; Murramunda)	Grguric et al. (2011)
Yaloginda Goldfield (Bluebird; Eight Mile; Yallowgindat) ⓘ Karangahaki Gold Mine (Phantom Mine)	Simpson (1948)
Menzies Shire Comet Vale ⓘ Happy Jack Mine (Lady Bee Mine)	Simpson (19480, Minerals of Western Australia, Vol 1, p 114)
Goongarrie ⓘ Pamela Jean prospect	Salama et al. (2025)
ⓘ Patricia Anne prospect	Salama et al. (2025)
Yerilla Station ⓘ Yerilla Chrysoprase Mine	Fetherston et al. (2013)
Murchison Shire Byro Station ⓘ Byro East prospect (Mekamarra)	Athena Resources
Northam Shire Northam ⓘ Mount Dick	Simpson (1948)
Northampton Shire ⓘ Ajana	Simpson (1948)
ⓘ Surprise Mine	Simpson (1948)
Sandstone Shire ⓘ Youangarra Goldfield (Curran's Find)	Simpson (1948)
Upper Gascoyne Shire Mooloo Downs Station ⓘ Moolooite location	Clarke et al. (1986)
ⓘ Weedarrah Quarry (Cameron's Open Cut)	Fetherston (2010)
Westonia Shire Westonia ⓘ Edna May Gold Mine	Simpson et al. (1948)
Wiluna Shire Lake Way Station ⓘ Honeymoon Well complex	Disseminated and Massive Nickel ... +2 other references
ⓘ Corella prospect	Gole et al. (2000)
ⓘ Harrier deposit	Gole et al. (2000)
ⓘ West Jordan deposit	Grguric et al. (2013)
Mount Keith ⓘ Mount Keith Open Pit	Mills et al. (2010)

Austria
Burgenland Oberwart District Unterkohlstätten Glashütten bei Schlaining ⓘ Serpentinite quarry (Rumpersdorf quarry)	Autorenkollektiv (Red. M. A. Götzinger und P. Huber)
Carinthia Feldkirchen District Sankt Urban ⓘ Laaken	Meixner (1976)
Sankt Veit an der Glan District Friesach Sankt Salvator ⓘ Stegsdorf	Niedermayr et al. (1995)
Hüttenberg Hüttenberger Erzberg Knappenberg ⓘ Plankogel	Angel et al. (1953)
Lölling ⓘ Pusygraben (Unterer Grabner)	Thiedig (1962)
Micheldorf Hirt Griesserhof (Gulitzen; Gullitzen) ⓘ Serpentinite quarry	Niedermayr et al. (1995)
Spittal an der Drau District Großkirchheim ⓘ Judenbrücke	Meixner (1957)
ⓘ Heiligenblut am Großglockner	Niedermayr et al. (1995)
Trebesing ⓘ Radlgraben	Niedermayr et al. (1995)
ⓘ Klausengrube	Pichler (2009)
Lower Austria Krems-Land District Albrechtsberg an der Großen Krems ⓘ Klein-Heinrichschlag	Fechner et al. (1985)
Gföhl Rastbach ⓘ Dörrmühle (Hofmühle)	Database „Minerale NÖ“ (A. Thinschmidt and co-workers)
Salzburg Hallein District Scheffau am Tennengebirge Moosegg ⓘ Sauloch	Strasser (1989)
Tamsweg District Muhr ⓘ A10 Highway tunnel (Tauern tunnel)	Strasser (2010)
Schellgaden ⓘ Brandriegel - Schlungkopf area	Strasser (1989)
ⓘ Sommerleitenkopf	Roman Gramblička collection
Zell am See District Bramberg am Wildkogel Nasenkopf mountain Leckbachgraben ⓘ Emerald deposit	Strasser (1989)
ⓘ Sedl	Strasser (1989)
Fusch an der Grossglocknerstrasse ⓘ Brennkogel south slope	Niedermayr et al. (1995)
Hollersbach im Pinzgau ⓘ Leckbachscharte	[var: Bowenite] Kievlenko et al. (2003)
Scharnbachgraben ⓘ Schwarze Wand	Exel (1993)
Rauris Grieswies - Krumlkeeskopf area ⓘ Grieswies	Strasser (1989)
Saalfelden Biberg (Bieberg) ⓘ Diabase quarry (Biberg quarry)	Strasser (1989)
Uttendorf ⓘ Totenkopf (incl. Lower Riffl glacier)	Strasser (1989)
Styria Bruck-Mürzzuschlag District Breitenau am Hochlantsch Eibegggraben ⓘ Serpentinite outcrop	Auer (2023)
Bruck an der Mur ⓘ Gloriette	Josef Taucher & Christine Elisabeth Hollerer (2012)
Pernegg an der Mur Kirchdorf ⓘ S35 motorway tunnel (Kirchdorf tunnel)	Kolitsch (2008) +1 other reference
Traföß Trafößgraben ⓘ Forestry road cut	Post. W. & Bojar (2006)
Zlatten ⓘ S35 motorway tunnel (Kaltenbach tunnel)	Kolitsch (2008)
Leoben District Sankt Stefan ob Leoben Lobminggraben ⓘ Lobminggraben quarry	Offenbacher (1983)
Liezen District Mitterberg-Sankt Martin ⓘ Mitterberg	- (n.d.)
Trieben ⓘ Lärchkogel	Schantl (1976)
Murtal District Sankt Marein-Feistritz ⓘ Gulsen	Exel (1993)
Weiz District Anger Rabenwald (Rabenwaldkogel) ⓘ Talc mine	Postl (2000)
Tyrol Lienz District Prägraten am Großvenediger ⓘ Dorferbach valley	Exel (1993)
Umbal valley Islitz Alp ⓘ Umbal falls (Granatwandl)	Exel (1993)
Schwaz District Mayrhofen ⓘ Diopsidrinne (Schwarzenstein Alp)	Exel (1993)
ⓘ Hollenzen	Exel (1993)
Zillertal ⓘ Ochsner-Rotkopf massif	Koark (1949)

Brazil
Bahia Bom Jesus da Serra ⓘ São Félix do Amianto mine	Cassedanne et al. (1977)
Campo Formoso ⓘ Limoeiro mine	Mota-e-Silva et al. (2015)
Guajeru ⓘ Baixa da Braúna farm	Cassedanne et al. (1977)
Minas Gerais Liberdade ⓘ Fazenda da Roseta	Soares et al. (2018)
Pará Canaã dos Carajás ⓘ Vermelho complex	de Carvalho et al. (1997)
São Paulo Cajati ⓘ Mesquita Sampaio deposit	Oliveira et al. (2020)

Bulgaria
Kardzhali Province Ardino Municipality ⓘ Svetulka	Kunov
Kirkovo Municipality ⓘ Dobromirtsi	González-Jiménez et al. (2009) +1 other reference
Krumovgrad Municipality ⓘ Golyamo Kamenyane serpentinite	Gervilla et al. (2012)
Yambol Province Bolyarovo Municipality ⓘ Iglika	I. Kostov et al. (1964)

Cameroon
East Region Haut-Nyong Lomié Lomié Ultramafic complex ⓘ Nkamouna Mine	Dzemua et al. (2012) +1 other reference

Canada
British Columbia Atlin Mining Division Nahlin River area ⓘ Nahlin River Ni-Cu occurrence	Peatfield (n.d.)
Greenwood Mining Division Bridesville ⓘ Old Nick nickel deposit	Peatfield (n.d.) +1 other reference
Liard Mining Division Cassiar ⓘ Cassiar Mine	150. +4 other references
New Westminster Mining Division ⓘ Giant Copper deposit	Peatfield (n.d.)
Omineca Mining Division ⓘ Decar	Britten (2017)
ⓘ Baptiste deposit	Economic Geology 112 (2017)
ⓘ Snowbird mine	Econ Geol (1990)
Revelstoke Mining Division Mount Sproat ⓘ Asbestos property	Peatfield (n.d.)
Manitoba Thompson Nickel Belt ⓘ Ospwagan Lake	Coats (1968)
New Brunswick Charlotte Co. Grand Manan Island White Head Island Gull Cove ⓘ Gull Cove Mine	Grand Manan Museum
Newfoundland and Labrador Newfoundland ⓘ Steel Mountain anorthosite massif	Pe-Piper et al. (2024)
Northwest Territories Mackenzie Mountains Tungsten (Cantung) ⓘ Cantung Mine	Sabina (1973)
Nova Scotia Inverness Co. ⓘ Lime Hill	Chatterjee (1977)
Meat Cove ⓘ Meat Cove zinc deposit	Chatterjee (1977)
Victoria Co. ⓘ McMillan Brook	Chatterjee (1977)
Ontario Cochrane District Dundonald Township ⓘ Alexo Mine (Kelso)	Sabina (1974)
Timmins Deloro Township ⓘ Bowman Mine	Schandl et al. (1990)
Nipissing District ⓘ Strathy Township	Bennett (1978)
Thunder Bay District ⓘ Legris Lake	N.T. Pettigrew and K.H. Hattori
Québec Abitibi-Témiscamingue Abitibi RCM La Motte Marbridge Mine Marbridge No. 1 mine ⓘ Serpentinite	Mineral Record (1976)
ⓘ Chaudière-Appalaches
Les Appalaches RCM Sacré-Cœur-de-Jésus ⓘ Montréal-Broughton mine	Shann Whynot-Young Collection
Saint-Joseph-de-Coleraine ⓘ Huard mine	Gaudard (1993)
ⓘ Mine Lac d'Amiante (Lake Asbestos Mine; "LAB Mine"; "Black Lake Mine")	Amabili et al. (2009)
ⓘ Montréal Chrome pit (Montréal mine; Montréal-Coleraine mine; Paré pit; Black Lake Chrome quarry)	GAUDARD (1993)
ⓘ Normandie mine	Can Mineral June 1
ⓘ Vimy Ridge mine	Gaudard (1993)
Thetford Mines ⓘ Bell mine	Museum Thetford Mines collection
Black Lake ⓘ British Canadian mine (B.C. 1 mine; B.C. 2 mine; Martin mine; Black Lake mine; American mine; Dauville mine)	Gaudard (1993)
ⓘ King Beaver mine (Jacob mine; Beaver-1 mine; Beaver-2 mine)	King et al. (1989)
Pontbriand ⓘ Flintkote mine	Thetford Mines Museum specimen
ⓘ National mine	Fredric Schuster
Montmagny RCM St-Fabien-de-Panet ⓘ Eastern Metals Mine	Econ Geology (1993)
Robert-Cliche RCM Tring-Jonction ⓘ Boston Mine	Gaudard (1993)
Estrie Les Sources RCM Val-des-Sources ⓘ Jeffrey Mine	179-181. +3 other references
Nord-du-Québec Jamésie ⓘ Montviel carbonatite complex	Nadeau et al. (2015)
Nunavik ⓘ Payne Bay	Moorhouse et al. (1963)
Raglan Donaldson deposit ⓘ Donaldson surface deposit	Dillon-Leitch (1990)
ⓘ Donaldson West deposit	Econ Geol (1986)
Outaouais Pontiac RCM ⓘ Bryson	Mineralienkabinet J. de Fourestier
Yukon Dawson mining district ⓘ Clinton Creek Mine	Htoon (1979)
Watson Lake mining district ⓘ Canada Tungsten Mine	Sabina (1973)

Chile
Araucanía Cautín Province ⓘ La Cabaña	González-Jiménez et al. (2016)
La Cabaña serpentinites ⓘ Centinela Bajo area	González-Jiménez et al. (2016)
ⓘ Lavanderos	González-Jiménez et al. (2016)
Los Ríos Valdivia Province ⓘ Camán ultramafic body	González-Jiménez et al. (2023)

China
Anhui Tongling Shizishan ore field ⓘ Dongguashan Mine	Baogui Zhang (1996)
Tongguanshan ore field ⓘ Tongguanshan Mine	Huasheng Huang et al. (1985) +1 other reference
Xinqiao ore field ⓘ Xinqiao Mine	Baogui Zhang (1996)
Xuancheng Xuanzhou District Nanling-Xuancheng ore district ⓘ Qiaomaishan Cu−W deposit	Li et al. (2023)
Gansu Jinchang Jinchuan District ⓘ Jinchuan Ni-Cu-PGE deposit (Baijiajuzi Ni-Cu-PGE deposit)	Yang et al. (2006)
Guangxi Chongzuo Daxin Co. ⓘ Xialei Mine (Daxin Mine)	Jinbang Wang (1987) +1 other reference
Henan Luoyang Luanchuan County ⓘ Yiyuan jade deposit	Lu et al. (2026) +1 other reference
Pingdingshan Wugang County Wugang Fe ore field Batai Mine ⓘ Zhao'anzhuang deposit	Xingjie Jia et al. (2012)
Sanmenxia Lushi County ⓘ Yechangping Mo-W deposit	Zhu et al. (2025)
Hunan Yongzhou Dao Co. ⓘ Weijia W deposit	Fushun Li et al. (2012)
Jiangxi Shangrao Yanshan Co. (Qianshan Co.) Yongping ⓘ Yongping Mine (Shuiping Mine)	Zhanshi Zhang and Minqiang Zhu (2002)
Jilin Tonghua Ji'an Co. ⓘ Jiayi Village dunite outcrop	Wang +4 other references
Liaoning Anshan Xiuyan Co. ⓘ Xiuyan Jade mine	Liangju Zhang (2002)
Dalian Jinzhou District ⓘ Jinzhou Asbestos Mine	Tossavainen et al. (2001)
Dandong Fengcheng City ⓘ Wengquan'gou Boron deposit	Yanjun Li et al. (2006)
Huludao Jianchang County ⓘ Bajiazi Zn-Pb-Ag deposit	Xuehui Xia et al. (2003)
ⓘ Wujiatun section	Xuehui Xia et al. (2003)
Qinghai Haibei Tibetan Autonomous Prefecture Qilian Co. ⓘ Qilian Asbestos mine	Tossavainen et al. (2001)
Haixi Mongol and Tibetan Autonomous Prefecture Golmud City (Ge'ermu Co.) ⓘ Kendekeke Mine (Kendekok Mine)	Zhang et al. (2024)
Shaanxi Ankang Ziyang County ⓘ Qujiashan Mine	Gongqin Zhang (1986)
Hanzhong Mian County ⓘ Jianchaling Mine	Xiudao Jiang et al. (2010)
Ningqiang County ⓘ Da'an Mine	Zhengguo Ru (1987)
ⓘ Heimulin ultramafic complex	Gong et al. (2026)
Xi'an Lantian County ⓘ Yuchuan jade quarry	Juanxia Zhang and Baoping Luo (2002)
Sichuan Bazhong Nanjiang Co. ⓘ Hongshan Fe deposit	Hongbing Hao and Wei Zhang (2001)
Liangshan Yi Mianning County ⓘ Lugu Sn-Fe deposit	Li et al. (2026)
Ya'an Shimian County ⓘ Shimian Mine (Sichuan Asbestos mine)	Bojun Huang and Yushun Min (1989) +2 other references
Tibet Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture) Qusum Co. (Qusong Co.) ⓘ Luobusha ophiolite ("Luobusa ophiolite")	Wang et al. (2023)
Xinjiang Bayin'gholin Autonomous Prefecture Lopnur Co. (Yuli Co.; Weili Co.) Qieganbulake complex ⓘ Qieganbulake Mine	Jianhua Huang et al. (2012)
Hami Prefecture (Kumul Prefecture; Qumul Prefecture) Yizhou District Huangshan-Jing'erquan ore belt ⓘ Tudun Cu-Ni deposit	Qiang Zhou et al. (2006)
Ili Kazakh Autonomous Prefecture Altay Prefecture (Aletai Prefecture) Fuyun Co. (Koktokay Co.) ⓘ Jinshuiquan Au deposit	Xiaoyong Nie (2010)
ⓘ Kalatongke Mine (Kalatunk Mine; Karatungk Mine)	Han et al. (2007)
Zhaheba ⓘ Zhaheba ophiolite	Wang et al. (2023)
Yunnan Wenshan Maguan County Dulong ore field Dulong Sn-Zn deposit ⓘ Manjiazhai ore segment	Fan et al. (2025)
Malipo County ⓘ Nanzhuang Mine	Kaiji Yu (1981)

Colombia
Córdoba Department Montelíbano ⓘ Cerro Matoso Mine (Cerro Matoso S. A. Laterite deposit)	Castrillón et al. (2023)

Cuba
Holguín Province Moa-Baracoa District ⓘ Mercedita Cr deposit	Pujol-Solà et al. (2018)
Villa Clara Province ⓘ Escambray Mountain (Sierra de Escambray)	Auzende et al. (2002)
ⓘ La Belleza mine (Picos Blancos y La Belleza)	MACIZO METAMÓRFICO ESCAMBRAY. CUBA CENTRAL. CONTROLES Y USOS DE LOS MINERALES NO-METÁLICOS. Humberto Álvarez-Sánchez (1) +2 other references

Cyprus
Limassol District ⓘ Mount Olympus

Czech Republic
Central Bohemian Region Benešov District Vracovice ⓘ Malovidy	Šrein (2007)
Hradec Králové Region Jičín District Železnice Doubravice ⓘ Doubravice quarry	Pauliš +3 other references
Karlovy Vary Region Karlovy Vary District Boží Dar Zlatý Kopec ⓘ Zlatý Kopec skarn deposit	Šrein +2 other references
Olomouc Region Jeseník District Skorošice ⓘ Skorošice quarry	Kopa
South Moravian Region Blansko District ⓘ Křtěnov	Pelíšek (1979)
Brno-Country District Biskoupky ⓘ Unnamed gulch	Němec
Ústí nad Labem Region Chomutov District Málkov Ahníkov ⓘ Ahníkov pyroxenite outcrop	Ř +5 other references
Vysočina Region Žďár nad Sázavou District ⓘ Věchnov	Kopa
Věžná ⓘ Věžná serpentinite quarry	Petr Pauliš (2001)

Dominican Republic
María Trinidad Sánchez Province Río San Juan ⓘ Río San Juan Complex	Saumur et al. (2013)

Ecuador
El Oro Province Arenillas Canton ⓘ Tahuin Dam	Feininger (1978)
ⓘ Raspas eclogitic complex	John et al. (2010)

Egypt
Qena Governorate ⓘ Atalla Mine	Abd El Monsef (2019)
Red Sea Governorate ⓘ Atud mine	Abdelnasser et al. (2017)
Barramiya ⓘ Chromitite outcrops	Ahmed et al. (2001)
Bir Bitan ⓘ Abu Dahr	Ahmed et al. (2001) +1 other reference
Bir Semna ⓘ Wadi Semna	Azer et al. (2007)
ⓘ Gebel El-Rabshi	Ahmed et al. (2001)
ⓘ Kab Amiri	Kharbish (2020) +1 other reference
ⓘ Wadi Bezah	Ahmed et al. (2001)
ⓘ Wadi El-Lawi	Ahmed et al. (2001)
ⓘ Wadi El-Zarka	Ahmed et al. (2001)
ⓘ Wadi Sodmein	Abdelfadil et al. (2024)
ⓘ Wadi Um Huitate	Ahmed et al. (2001)
Suez Governorate El Galala ⓘ Gebel Belamhandite	Ahmed et al. (2001)

Ethiopia
Oromia Region West Welega Zone Gimbi ⓘ Yubdo District (Joubdo District; Youbdo District; Joubda District)	Kebede H. Belete

Finland
Kainuu Kuhmo Näätäniemi ⓘ Ensilä	Liipo et al. (1994)
ⓘ Serpentinite outcrops	Blais et al. (1987)
Siivikkovaara ⓘ Serpentinite outcrops	Blais et al. (1987)
Sotkamo ⓘ Lahnaslampi talc deposit	Kuosmanen
North Karelia ⓘ Outokumpu mining district	Peltonen et al. (2008)
Polvijärvi ⓘ Horsmanaho talc quarry
ⓘ Kylylahti Mine	Peltonen et al. (2008)
North Ostrobothnia Nivala ⓘ Hitura Mine	Geological Survey of Finland 2006 ... +1 other reference
North Savo Siilinjärvi ⓘ Siilinjärvi Mine	Yara International
Satakunta Siikainen ⓘ Otamo dolomite quarry	Sandström (2012)

France
Auvergne-Rhône-Alpes Ardèche Tournon-sur-Rhône Savas Eteize ⓘ Suc de Clava	BRGM (1988)
Haute-Loire Brioude Azérat ⓘ Allevier	Leblanc et al. (1987)
Berbezit ⓘ La Vernède	Forestier (1964)
Champagnac-le-Vieux ⓘ Champagnac-le-Vieux	Pélisson (1989)
Cistrières ⓘ La Barbate	Forestier (1964)
ⓘ Madriat	Forestier (1964)
ⓘ Mandel
Desges ⓘ Le Gaud serpentinite	Pélisson (1989)
Laval-sur-Doulon Pervenchères ⓘ Serpentinite outcrop
Lubilhac ⓘ Malepeyre	Forestier (1964) +1 other reference
Paulhac ⓘ Serpentinite deposit	Forestier (1964) +1 other reference
Saint-Beauzire ⓘ La Violette farm	Pélisson (1989)
ⓘ Peigne du Chazau	Forestier (1964)
Saint-Cirgues ⓘ Les Rochers de Lisoul	Pélisson (1989)
ⓘ Traignac Brook serpentinite outcrops	Forestier (1964)
Salzuit ⓘ La Charbonnière
Torsiac Lanau ⓘ Listvenite outcrop	Leblanc et al. (1987)
Venteuges La Bastide ⓘ Peridotite outcrop	Pélisson (1989)
Vieille-Brioude ⓘ Serpentinite deposit	Pélisson (1989)
Villeneuve-d'Allier ⓘ Jazinde serpentinite lens No. 1	Forestier (1964)
ⓘ Jazinde serpentinite lens No. 2	Forestier (1964)
ⓘ Jazinde serpentinite lens No. 3	Forestier (1964)
Le Puy-en-Velay Vernassal ⓘ Peridotite outcrop	Forestier (1964)
Puy-de-Dôme Issoire Champagnat-le-Jeune ⓘ Le-Saut-du-Loup	Leblanc et al. (1987)
Rhône Villefranche-sur-Saône Le Breuil ⓘ Les Ponts-Tarrets	G. Demarcq
Brittany Finistère Quimper Peumerit ⓘ Kerantrévez	Chauris (2014)
ⓘ Kerguelmès quarry	Pierrot et al. (1973)
ⓘ Moulins Verts	Pierrot et al. (1973)
Plovan ⓘ Ty Lan	Pierrot et al. (1973) +1 other reference
Morbihan Lorient Groix Pivisy ⓘ Tréhor	Chauris (2014)
Corsica Haute-Corse Bastia Canari ⓘ Canari mine	Azias (1968)
Grand Est Haut-Rhin Thann-Guebwiller Fellering ⓘ Bergenbach Quarry	Hohl (1994)
New Caledonia Northern Province ⓘ Koniambo Massif	Quesnel et al. (2016)
Occitanie Ariège Foix Auzat La Freychinède ⓘ Peridotite outcrop	A.B. Woodland et al. (30) +2 other references
Saint-Girons Le Port Col d'Agnès Etang de Lers ⓘ Peridotite outcrops	A.B. Woodland et al. (30) +2 other references
Aveyron Villefranche-de-Rouergue Firmi ⓘ Puy de Wolf (Puech de Voll)	www.google.fr (n.d.)
Hautes-Pyrénées ⓘ Aure Valley	De Ascenção Guedes et al. (2002)
Pyrénées-Orientales Céret Prats-de-Mollo-la-Preste ⓘ Costabonne mines (Costabona mines)	Dubru. M (1986)
Tarn-et-Garonne Montauban Orgueil ⓘ Orgueil meteorite	Peter R. Buseck & Xin Hua (1993)
Provence-Alpes-Côte d'Azur Hautes-Alpes Briançon Ceillac ⓘ Le Cristillan ravine
Cervières ⓘ Chenaillet Pass (Col du Chenaillet)	Martin (1984) +1 other reference
Saint-Véran ⓘ Les Clausis mine
ⓘ Pic Marcel	Desmons (1990)
Var Draguignan Cavalaire-sur-Mer ⓘ Carrade de Cavalaire	Mari et al. (1979)

Germany
Baden-Württemberg Freiburg Region Ortenaukreis Seelbach Schuttertal ⓘ Winterbauernhof quarry	Walenta (1992)
Waldshut Todtmoos ⓘ Scheibenfelsen	Walenta (1992)
Bavaria Lower Bavaria Passau District Hauzenberg Kropfmühl ⓘ Kropfmühl Mine	Habel (2011)
Upper Franconia Hof District Rehau Wurlitz ⓘ Heß quarry	Rost (1949)
Hesse Darmstadt Bergstraße Bensheim Auerbach ⓘ Linck marble works	Weiß (1990)
Giessen Region Marburg-Biedenkopf Bad Endbach ⓘ Bottenhorn	[var: Webskyite] Faust and Hahey (1962)
Lower Saxony Goslar District Bad Harzburg Radau valley ⓘ Gabbro Quarry
Göttingen District Adelebsen Güntersen ⓘ Backenberg quarries	Wedepohl (1954)
North Rhine-Westphalia Arnsberg Hochsauerlandkreis Winterberg Silbach ⓘ Kuhlenberg quarry	Weiß (1990) +1 other reference
Rhineland-Palatinate Vulkaneifel Gerolstein Walsdorf Zilsdorf ⓘ Arensberg	Beyer
Saxony Erzgebirgskreis ⓘ Schneeberg	Lapis 30 (7/8)
Mittelsachsen Claußnitz Diethensdorf ⓘ Diethensdorf Quarry	Wittern (2001)
Zwickau District Hohenstein-Ernstthal ⓘ Oberwald quarry (Kiefernberg quarry)	www.mineralienatlas.de (n.d.)

Greece
Eastern Macedonia and Thrace Drama Kato Nevrokopi ⓘ Kresti	various added photos
Evros ⓘ Soufli	Magganas et al. (1988)
Rhodope Arriana ⓘ Kechros	Mposkos et al. (2012)
ⓘ Mount Oeta	Tsikouras et al. (2006)
Peloponnese Laconia Mani peninsula ⓘ Liakos-Pahianika [2]	Tzeferis et al. (2026)
ⓘ Paliros-Kourelo	Tzeferis et al. (2026)

Greenland
Kujalleq ⓘ Ilímaussaq complex	Petersen et al. (1993)
Sermersooq Kangerlussuaq Fjord ⓘ Gardiner Complex	Petersen et al. (1985)
Nuuk ⓘ Isua Greenstone Belt (Isua Supercrustal Belt)	Dymek (1987) +1 other reference

Hungary
Baranya County Pécs District Gyód ⓘ Gyód boreholes	Kovács et al. (2003)
Heves County Pétervására District Recsk ⓘ Recsk Mine (Deep Level)	Mecsek-Oko
Vas County Szombathely District Felsõcsatár ⓘ Talc mine

India
Jharkhand West Singhbhum District ⓘ Jojahatu	Singh (1959)
Karnataka Hassan District Channarayapattana ⓘ Byrapur Chromite Mine	[var: Chrome antigorite] Varadarajan (1961)
Shimoga District ⓘ Shankaraghatta ultramafic body	Devaraju et al. (2014, January)
Manipur Tengnoupal District ⓘ Manipur Ophiolite Complex	Premi et al. (2023)
Odisha Keonjhar District ⓘ Nuasahi Complex	Mondal et al. (1996)
Mayurbhanj district ⓘ Bangriposi	Chakraborti et al. (2018)
Deoli pargana ⓘ Bholghati meteorite	Reid et al. (1990)

Indonesia
North Maluku Province Halmahera Island ⓘ Wailukum Ni Laterites	Bari et al. (2026)
Papua Province Mimika Regency Gunung Bijih District Ertsberg Complex ⓘ Ertsberg East Complex (GBT)	Bailey et al. (1995)
Southeast Sulawesi Province North Konawe Regency ⓘ Kelurahan Pondidrha laterite	Qi et al. (2024)

Iran
Fars Province Neyriz County ⓘ Cheshmeh-Bid deposit	Taghipour et al. (2018)
Kerman Province Arzuiyeh County ⓘ Soghan	Ahadnejad et al. (2022)
ⓘ Sorkhan	Oberhänsli et al. (2007)
Kurdistan Province Divandarreh County ⓘ Tawakalan deposit	Moinevaziri (2019)

Iraq
Sulaymaniyah Governorate Penjwen District ⓘ Mla kawa	Mohammad (2009)
ⓘ Penjwen	Mohammad (2013)

Italy
Aosta Valley Ayas Champoluc ⓘ Breithorn-Roccia Nera ridge (Breithorn-Schwarzfluh ridge; Breithorn ridge)	Dal Piaz (1967)
Gobba di Rollin-Rocca di Verra ridge - Blu Lake area ⓘ Gobba di Rollin	Dal Piaz (2004)
ⓘ Rocca di Verra	Dal Piaz (2004)
ⓘ Monte Rosso di Verra	Dal Piaz (2004)
ⓘ Palon di Resy	Dal Piaz (2004)
ⓘ Polluce (Pollux)	Dal Piaz (1967)
Champdepraz ⓘ Mont Avic	Barale et al. (2023) +1 other reference
ⓘ Champorcher	Novo M. et al. (1989)
ⓘ Champorcher Valley	Novo M. et al. (1989)
ⓘ Châtillon	Dal Piaz et al. (2008)
ⓘ Ponte delle Capre (Pont des Chèvres) area	Pelloux (1946)
ⓘ Ussel area	Rossetti et al. (2009)
Cogne ⓘ Cogne Mines	Carbonin et al. (2015)
ⓘ Larsinaz mine	Toffolo et al. (2017)
ⓘ Liconi mine	Toffolo et al. (2015) +1 other reference
ⓘ West slope Montzalet	Toffolo et al. (2017)
ⓘ Émarèse	Brugnatelli (1903) +4 other references
ⓘ Settarme-Chassan Mine	Grill (1922) +4 other references
Fénis Clavalité Valley ⓘ Raye Chevrère Lake	Castello et al. (2016)
ⓘ Gressan	Yannick Verbelen collection
Montjovet ⓘ Rhodoz Valley (Rodoz Valley; Rhodo Valley)	Castello (1978) +1 other reference
Verrayes ⓘ Green marble quarries (Ophicalcite quarries)	Sandrone et al. (2004)
Basilicata Potenza Province ⓘ Mount Nandiniello area ophiolite outcrops	Laurita et al. (2019) +1 other reference
Calabria Catanzaro Province ⓘ Conflenti quarry	Punturo et al. (2023)
Gimigliano ⓘ Gimigliano quarry	Punturo et al. (2023)
ⓘ Mount Reventino quarry	Punturo et al. (2023)
Emilia-Romagna Modena Province Pavullo nel Frignano Renno ⓘ Sasso Puzzino ophiolite	Bertacchini et al. (1999)
Prignano sulla Secchia Sassomorello ⓘ Sassomorello ophiolite	Bertacchini et al. (1999)
Serramazzoni ⓘ Pompeano ophiolite	Bertacchini et al. (1999)
ⓘ Varana ophiolite	Bertacchini et al. (1999)
Sestola Vesale ⓘ Rio Vesale	Bertacchini et al. (1999)
Parma Province Tornolo S. Maria del Taro ⓘ Monte Rocchetta	Galli (1963)
Piacenza Province Coli ⓘ Monte dei Tre Abati	Mellini et al. (1987)
Liguria Genoa Borzonasca ⓘ Mt. Rocchetta (La Rocchetta)	Antofilli et al. (1983)
Castiglione Chiavarese ⓘ Bracco Pass	Marchesini et al. (2025)
Genoa Borzoli ⓘ Mt. Ramazzo Mine
ⓘ Rovegno	Marchesini et al. (2025)
ⓘ Pescia stream	Marchesini et al. (2025)
Savona Province ⓘ Mount Beigua	Cimmino F. Messiga B et al. (1979)
Lombardy Pavia Province ⓘ Staffora Valley	Voghera Museum of Natural Sciences (Zelaschi find & donation)
Sondrio Province ⓘ Bregaglia granite contact metamorphism zone	Eur. J. Mineral.
Chiesa in Valmalenco ⓘ Sissone Valley	Marchesini et al. (2025)
Lanzada ⓘ Acquanegra asbestos mines (Costòn d’Acquanegra; Acquanera asbestos mines)	Bedognè et al. (1993)
ⓘ Bagnada-Ponticelli Mine (ex-Bolognini Mine; ex-Unitalc Mine)	Bedognè (2006)
Franscia ⓘ Dossi di Franscia	Bedognè et al. (1993)
Scerscen Valley ⓘ Scerscen Valley asbestos mine	Tabacchi (1972)
ⓘ Valbrutta (Val Brutta)	Bedognè et al. (1993)
ⓘ Vallone del Cengiaccio (Cengiaccio; Cengiàsc; Cengiasco)	Bedognè et al. (1993)
ⓘ Sferlùn asbestos mine	Bedognè et al. (1993)
Torre di Santa Maria Ciappanico ⓘ Rocca Castellaccio	Bedognè et al. (2006)
Piedmont Cuneo Province Casteldelfino ⓘ Auriol Mine	Compagnoni et al. (1985)
ⓘ Grange Peyro del Vej	Belluso et al. (1991) +1 other reference
Crissolo Pian del Re ⓘ Lago Fiorenza serpentinite outcrop	Rolfo et al. (2015)
Piasco ⓘ Piasco serpentinite quarry (S.P.E.M.E. Quarry; Piasco Mine)	Piccoli et al. (2007)
Pontechianale ⓘ Rocca Nera	Schwartz et al. (2013)
ⓘ Tour Real	Schwartz et al. (2013)
ⓘ Vallone delle Forciolline	Compagnoni et al. (1976)
Sampeyre ⓘ Confine di Sopra (Foresto)	Belluso et al. (1991) +1 other reference
ⓘ Costa Grusniera (Monte Nebin; Colle di Sampeyre)	Belluso et al. (1991) +1 other reference
ⓘ Il Colletto (Madonna della Neve)	Belluso et al. (1991) +1 other reference
ⓘ Monte Pui	Belluso et al. (1991) +1 other reference
ⓘ Tenou	Belluso et al. (1991) +1 other reference
ⓘ Villar	Belluso et al. (1991) +1 other reference
Stroppo ⓘ Monte Nebin	Belluso et al. (1991)
Metropolitan City of Turin Angrogna ⓘ Alpe Caugis quarry	Vola (2020)
ⓘ Avigliana	Balestro et al. (2009)
Balangero ⓘ Poggio San Vittore asbestos mine	Prete (1995)
Bobbio Pellice ⓘ Colle del Baracun serpentinite outcrops (Colle Barant serpentinite outcrops)	Belluso et al. (1995) +1 other reference
ⓘ Maisonette	Belluso et al. (1995)
Caselette ⓘ Sant'Abaco	Sanero (1932)
Ceres Bracchiello ⓘ Bracchiello Quarry	Parallel intergrowths of fibrous tremolite and antigorite have been described by Belluso et al. (1995)
ⓘ Chiampernotto	Belluso et al. (1995)
Fenestrelle ⓘ La Latta	Belluso et al. (1995)
ⓘ Pra Catinat	Belluso et al. (1995)
Givoletto ⓘ Borgo Nuovo outcrop	Belluso et al. (1995)
Lanzo Torinese ⓘ Ponte del Diavolo (Ponte del Roch)	Belluso et al. (1995)
Lessolo Calea ⓘ Brosso Mine	Campostrini (2001)
ⓘ Musinè Mountain	Sanero (1932)
Piossasco ⓘ San Valeriano quarry	Zucchetti (1968) +1 other reference
Pragelato Troncea Valley ⓘ Laval	Fioraso (2009)
Rocca Canavese ⓘ Thrust-sheet outcrops	Eur. J. Mineral.
ⓘ Sant'Ambrogio di Torino	Zucchetti (1968) +2 other references
ⓘ Croce Nera Pass	Belluso et al. (1995)
ⓘ Sant'Ambrogio quarries	Zucchetti (1968) +2 other references
ⓘ Trana	Zucchetti (1968) +1 other reference
ⓘ Can Galet serpentinite outcrops (Case Galet serpentinite outcrops)	Belluso et al. (1995)
ⓘ Croce di Pietra serpentinite outcrop	Belluso et al. (1995)
ⓘ Pratovigero serpentinite outcrops	Belluso et al. (1995)
ⓘ Trana Sanctuary serpentinite outcrop (Madonna della Stella Sanctuary serpentinite outcrop)	Belluso et al. (1995)
ⓘ Traves	Groppo et al. (2007)
ⓘ Ordagna Creek	Groppo et al. (2007)
Usseaux ⓘ Chabrepan	Belluso et al. (1995)
Varisella ⓘ Santa Maria della Neve	Groppo et al. (2007)
Villar Focchiardo ⓘ Colle delle Vallette	Belluso et al. (1995)
ⓘ Punta del Lago (Punta del Lago Nord)	Belluso et al. (1995)
Viù ⓘ Fubina	Groppo et al. (2007)
ⓘ Mount Crusat	Groppo et al. (2007)
ⓘ Muande	Groppo et al. (2007)
ⓘ Punta Losera	Groppo et al. (2007)
Verbano-Cusio-Ossola Province ⓘ Antigorio Valley (TL)	Schweizer (1840) +1 other reference
Baceno Devero Alp ⓘ Monte Cervandone area
ⓘ Monte Cervandone diopside occurrence
ⓘ Pizzo Bandiera	Albertini (1991) +1 other reference
ⓘ Pizzo Crampiolo Sud	Albertini (1991) +1 other reference
ⓘ Punta della Rossa (Rothorn)
ⓘ Rossa asbestos mine (Alpe Rossa Mine)	Mattioli (1975) +2 other references
Domodossola ⓘ Cisore serpentinite outcrop	Traverso S. (1895)
Malesco ⓘ Val Loana serpentinite	Boscardin et al. (2013)
Villette ⓘ Pian dei Sali serpentinite (Monte Netto - Cresta della Colmine northwest slope)	Mattioli (1979) +1 other reference
Vercelli Province ⓘ Alagna Valsesia	Piccoli et al. (2007)
Sardinia Sassari Province Golfo Aranci ⓘ Montiggiu Nieddu	Gamboni et al. (2006)
Trentino-Alto Adige/Südtirol South Tyrol Wipptal (Alta Vall'Isarco) Pfitsch (Val di Vizze) ⓘ Burgum Alp	Gartner et al. (2002)
Trento Province Daone & Breguzzo Valbona (Val Bona) & Val d'Arnò ⓘ Cima Uzza	Bucher-Nurminen (1982)
Moena ⓘ Pizmeda (Piz Meda)	[var: Vorhauserite] Doelter
ⓘ Toal de la Foia	De Michele (1974)
Terragnolo Borcola Pass ⓘ Borcoletta Quarry	Zordan A. (2014)
Tuscany ⓘ Livorno Province	Bonifazi (2020)
Piombino ⓘ Piombino Promontory	Nappi (1967) +2 other references
Rio Rio Marina ⓘ Monte Fico serpentinite quarry	Viti et al. (1996)
Rosignano Marittimo ⓘ Botro dell'Arancio Quarry	Sammartino (2009)
ⓘ Upper Ugione stream valley	Sammartino (2014)
Metropolitan City of Florence Gambassi Terme ⓘ Gambassi Quarry (Borgo alla Collina)	Betti et al. (2017)
Il Castagno ⓘ La Striscia	Betti et al. (2017)
Greve in Chianti Strada in Chianti ⓘ Meleto quarry	Vandall King
ⓘ Impruneta	Brizzi G. et al. (FI)
Montaione ⓘ Fornaci di Montignoso Quarry (Bi.Bru Quarry)	Betti et al. (2017)
Pisa Province Riparbella ⓘ Borro della Botra quarry	Nannoni
Volterra ⓘ Poggio del Cornocchio quarries	Betti et al. (2017)
Prato Province ⓘ Monteferrato	Brizzi G. et al. (1996)
Prato ⓘ Monteferrato quarries	Brizzi G. et al. (1996)
Veneto Vicenza Province Arsiero Riofreddo valley Contrada Busati-Pasquali ⓘ Contrada Busati-Pasquali Quarry	Boscardin et al. (2011)
Posina Borcola Pass ⓘ Borcola Pass Quarry (Lucchi Quarry; Prato Lorda Quarry)	Boscardin et al. (2011)
Punta della Lucche ⓘ Nido d'Aquila Quarry	Boscardin et al. (2011)

Japan
Ehime Prefecture ⓘ Higashi-Akaishi Ultrahigh-Pressure Peridotite Complex	Miura et al. (2018)
Shikokuchuo City ⓘ Fujiwara dunite	Arai +4 other references
ⓘ Urayama River	SHIROSE et al. (2026)
Fukuoka Prefecture Kasuya District ⓘ Sasaguri	上原誠一郎. (1987)
ⓘ San'no mine	Yamada (2004)
Gifu Prefecture Hida City ⓘ Kamioka Mine	Okuno (1964)
Hokkaidō Prefecture Hidaka Subprefecture Saru District Tanukiiwa ⓘ Nittoh mine (Nitto mine; Shin-Nitto mine)	Bamba (1978)
Ibaraki Prefecture Hitachiota City ⓘ Hase mine	Petrov (n.d.)
Iwate Prefecture ⓘ Nanbu mine	- (n.d.)
Tono City Miyamori ⓘ Peridotite locality	- (n.d.)
Kagoshima Prefecture Oshima District Yamato village ⓘ Yamato mine	M. Fleischer
Kyoto Prefecture Miyazu City ⓘ Nakanochaya	Yamada (2004)
Mie Prefecture Toba City ⓘ Sugashima	Yamada (2004)
Oita Prefecture ⓘ Oita City	Uehara et al. (1994)
ⓘ Shibuki mine	Katou (1925)
ⓘ Seki mine	Katou (1925)
Tottori Prefecture Hino District Nichinan ⓘ Inatsumiyama	Arai et al. (1999)
ⓘ Tari-Misaka Ultramafic Complex	Arai et al. (1994)
Yamaguchi Prefecture Iwakuni City Nishiki-cho ⓘ Deai serpentinite	Motoiki Saito (1973)
Mitake ⓘ Mitake serpentinite	Motoiki Saito (1973)

Kazakhstan
East Kazakhstan Region Kurshim District ⓘ Karchiga deposit	Lobanov et al. (2012)

Malaysia
Malacca Central Melaka District ⓘ Henry Gurney School Occurrence	Khoo (1978)

Mexico
Puebla Tehuitzingo Municipality ⓘ Tehuitzingo	Ortega-Gutierrez +2 other references

Mongolia
Govi-Altai Province Chandmani District ⓘ Alag-Khadny accretionary complex	Karimov et al. (2024)

Morocco
Drâa-Tafilalet Region ⓘ Bou Azzer mining district	Lhou et al. (2015) +1 other reference
Zagora Province Agdz Cercle ⓘ Bou Azzer ophiolite	Wafik et al. (2026)
Tansifte Caïdat ⓘ Aghbar-Bou Azzer East mining district	Lmahfoudi et al. (2025)

Mozambique
Nampula Province Monapo District ⓘ Evate carbonatite	Gajdošová et al. (2017)

Myanmar
Kachin State Mohnyin District Hpakant Township (Hpakan; Phakant; Phakan) Hpakant-Tawmaw Jade Tract ⓘ Tawmaw (Tawhmaw; Taw Maw)	Nyunt (2009)
Mandalay Region Pyin-Oo-Lwin District Mogok Township Bernardmyo ⓘ Pyaung Gaung	Harlow G1 (2014)
Sagaing Region Katha District Tigyaing Township (Htigyaing Township) ⓘ Tagaung Taung Ni deposit	Qianqun Chen and Taixu Luo (2009)

New Zealand	[var: Bowenite]

Marlborough Region Marlborough Sounds ⓘ D'Urville Island	Palmer (1966)
Nelson Region ⓘ Collins Valley serpentine mine	Palmer (1966)
New Zealand Outlying Islands ⓘ Bounty Islands	Cullen (1975)
Southland Region Southland District Fiordland National Park Milford Sound ⓘ Anita Bay	[var: Bowenite] Marshall (1904)
Tasman Region Aorere Goldfield Richmond Hill ⓘ Parapara River (Richmond Hill Porphyry)	Grapes et al. (1999)
Takaka ⓘ Contact Creek	Grapes et al. (1999)
West Coast Region Westland District Hokitika ⓘ Griffin Range	Railton et al. (1990)
Ross ⓘ Mikonui River	Railton et al. (1990)
ⓘ Teremakau and Mikonui Rivers area	Railton et al. (1990)

North Korea
South Hamgyong Province ⓘ Shinkodo	Satou (1933)
South Hwanghae Province ⓘ Haeju City	[var: Bowenite] GIA 2018

North Macedonia
Sveti Nikole Municipality ⓘ Bogoslovec	Šijakova-Ivanova (2021)

Norway
Agder Risør Søndeled ⓘ Ravneberget Quarry	Breivik (2001)
Buskerud Drammen Konnerud ⓘ Konnerudkollen Mines (Konnerud Mines)	Segalstad et al. (2002)
ⓘ Kongsberg silver mining district	Bancroft et al. (2001)
Modum Snarum ⓘ Dypingdal serpentine-magnesite deposit	Jøsang (1966)
Innlandet Skjåk ⓘ Framruste	Garmo (2006)
Møre og Romsdal Vanylven Almklovdalen ⓘ Gusdal Olivine Pit (Åheim Olivine Pit)	Ronald Werner photo
ⓘ Helgehornsvatnet	Seljebotn (2016)
Nordland ⓘ Hattfjelldal	Nordrum (2004)
Narvik Ballangen Melkedalen ⓘ Røvatn	Foslie (1931)
Rana Nordsjona Pollen ⓘ Pollen meteorite	Wolff (1963)
Østfold Halden Idd Aspedammen ⓘ Herrebøkasa	Sørlie (2003)
Rogaland Bjerkreim ⓘ Osland	Andresen (1990)
Karmøy Karmøy Island ⓘ Southeast of Kigjavatnet	Larsen (2021)
Sandnes ⓘ Nordland Talc Quarry (Stølsfjell)	Svensen (2004)
Troms og Finnmark Kautokeino ⓘ Bidjovagge gold-copper deposit	Mathiesen (1970)
Trøndelag Leka ⓘ Leka Island	Plümper et al. (2012)
Oppdal ⓘ Klettan	Larsen (2022)
ⓘ Lønset	Witsø (1995)
Vinstradalen Risberget ⓘ Svartholhaugan	Witsø (1995) +1 other reference
Røros ⓘ Feragen chromium mines	Hultin (1968)
ⓘ Leigh Chromium Mine	Moore et al. (1980)
ⓘ Gråberget Chromium Mines	Rø (2018)

Oman
Ad Dhahirah Governorate ⓘ Wadi Muaydin	Rajendran et al. (2014)
Muscat Governorate Sib ⓘ Fanjah (Fanja)

Pacific Ocean
Conical Seamount ⓘ Deep Sea Drilling Project Hole 779A	Fryer et al. (1992)
East Pacific Rise ⓘ Hess Deep	Plas (1997)

Pakistan
Balochistan Killa Saifullah District ⓘ Muslim Bagh	Kakar et al. (2013)
ⓘ Nisai	Kakar et al. (2013)
Gilgit-Baltistan Roundu District Haramosh Mountains ⓘ Tormiq Valley	Rolfo et al. (1997)
ⓘ Skardu Area	imported from Rondu District +1 other reference
Khyber Pakhtunkhwa Province Swat District ⓘ Mingora emerald deposit	Kazmi et al. (1986)
Punjab Province Sargodha District ⓘ ~~Bhera~~	[var: Bowenite] Richard M. Pearl: "Minerals of India"

Peru
Junín Tarma Province ⓘ Tapo Massif	Castroviejo et al. (2009) +1 other reference

Philippines
Luzon Bicol Region Camarines Norte Province Jose Panganiban ⓘ Paracale Intrusion	Giese et al. (1986)
Mimaropa Region Mindoro Island Occidental Mindoro ⓘ Intex Laterite Deposit	Watanabe +5 other references

Poland
Lower Silesian Voivodeship Dzierżoniów County Bielawa ⓘ Kamieniczki district	Lis et al. (1986)
Gmina Dzierżoniów ⓘ Jędrzejowice	[var: Webskyite] Lis et al. (1986)
Gmina Łagiewniki ⓘ Mount Czernica	Lis et al. (1986)
Gmina Pieszyce ⓘ Kamionki	Lis et al. (1986)
ⓘ Mount Kawka	Lis et al. (1986)
Kamienna Góra County Gmina Kamienna Góra Rędziny ⓘ Dolomitic marble quarry	Domańska (n.d.)
Kłodzko County Gmina Lądek-Zdrój ⓘ Lutynia	Lis et al. (1986)
Gmina Stronie Śląskie Kletno ⓘ Żmijowiec	Gil et al. (2019)
ⓘ Nowa Ruda	Kapuściński (1992)
Świdnica County Gmina Marcinowice Wirki ⓘ 'Wiry' magnesite mine	Sułkowski J. (1967)
ⓘ Wiry	JANECZEK J.
Gmina Świdnica ⓘ Bystrzyca Górna	Lis et al. (1986)
ⓘ Gogołów	Lis et al. (1986)
ⓘ Lubachów	Lis et al. (1986)
ⓘ Lutomia Górna	Lis et al. (1986)
Wrocław County Gmina Jordanów Śląski ⓘ Jordanów nephrite quarry	Szełęg
Gmina Sobótka Nasławice ⓘ Serpentinite quarry	Galuskin et al. (2003)
Sobótka ⓘ Galgenberg Dunite	Spangenberg et al. (1949)
ⓘ Mount Kopaniec	Lis et al. (1986)
Ząbkowice Śląskie County ⓘ Braszowice-Brzeźnica Massif	Delura (2005)
Gmina Bardo ⓘ Grochowa	Lis et al. (1986)
Gmina Ciepłowody ⓘ Koźmice	Lis et al. (1986)
Gmina Kamieniec Zabkowicki ⓘ Chałupki	Lis et al. (1986)
Gmina Ząbkowice Śląskie ⓘ Braszowice	Lis et al. (1986)
ⓘ Szklary	Spangenberg et al. (1949)
ⓘ Szklary Chrysoprase Mine	Spangenberg et al. (1949)
ⓘ Szklary nickel deposit	Ł. Kruszewski PXRD & pXRF data (paper in preparation)
Gmina Złoty Stok ⓘ Złoty Stok	Eligiusz Szełęg collection
Opole Voivodeship Opole County Gmina Niemodlin Molestowice Gracze basanite quarry ⓘ Zeolitized basaltic tuffs	Szeliga (2003)
Strzelce County Gmina Leśnica Góra Świętej Anny ⓘ St. Anne Mountain Geopark Quarry	Chodyniecka (1967)

Portugal
Portalegre Alter do Chão ⓘ Cabeço de Vide ultramafic complex	Dias et al. (2006) +1 other reference

Republic of the Congo
Lékoumou Department ⓘ Zanaga	Bull. Soc. Franç. Minéralo. ...

Romania
Brașov County ⓘ Racoş (Racoşul de Jos)	Szakáll
Gyilkos Creek ⓘ Serpentinite Quarry	Szakáll et al. (2010)
Caraş-Severin County ⓘ Ocna de Fier	Marincea (1999) +2 other references
Harghita County ⓘ Ditrău Complex	Pál Molnár (2000)
Mehedinti County Dubova ⓘ Eibenthal	Minerals of Carpathians

Russia
Buryatia Okinsky District ⓘ Kharanursky ultramafite massif	Karimov et al. (2024)
ⓘ Yehe-Shigna ophiolite massif	Zhmodik et al. (2022)
Severo-Baykalsky District Dovyren Highlands ⓘ Yoko-Dovyrensky Massif	Spiridonov (2020, September)
Chelyabinsk Oblast Karabash ⓘ Karabash ophiolite massif	Murzin et al. (2018)
Soimon Valley ⓘ Zolotaya Gora Au deposit	Murzin et al. (2013) +1 other reference
Kusinsky District Magnitka ⓘ Akhmatov mine	Zachary Powell collection
Magnitogorsk Sakhara District (Sakharinskii) ⓘ Sakhara massif	Mikhailov (2000)
Verkhny Ufaley Ufaley District (Ufalei District) ⓘ Rodionovskoe chromite mine	Pavel M. Kartashov (n.d.)
Vishnevye Mountains ⓘ Kagan massif	Chudnenko +2 other references
Jewish Autonomous Oblast ⓘ Sutara placers	Buravleva et al. (2016)
Khabarovsk Krai Ayano-Maysky district ⓘ Konder alkaline-ultrabasic massif	Pavel M. Kartashov (n.d.)
Murmansk Oblast Kovdorsky District ⓘ Kovdor Massif
ⓘ Lovozero Massif	...
Pechengsky District ⓘ Pechenga Ni-Cu ore field	Abzalov et al. (1997)
Serpentinite Belt ⓘ Pados-Tundra Complex	Barkov et al. (2017)
Orenburg Oblast Gaysky District ⓘ Ishkinino Co-Cu deposit	Zaikov et al. (2006) +1 other reference
Svetlinsky District Buruktal Mining District ⓘ Buruktal massif	Mikhailov (2000)
ⓘ Buruktal Mine	Talovina et al. (2003)
Republic of Karelia Prionezhsky District Zaonezhskoe kimberlite field ⓘ Kimozero kimberlite	Putintseva et al. (2017)
ⓘ Sakha	[World of Stones 12:49]
Mirninsky District Daldyn ⓘ Udachnaya open-pit mine (Udachnaya-Vostochnaya pipe; Udachnaya pipe)	Rezvukhin +3 other references
Sverdlovsk Oblast Asbest ⓘ Bazhenovskoye deposit	Dana 7:I:654. +1 other reference
Pyshminsky District ⓘ Kluchevskoy ophiolite complex	Smirnov et al. (2022)
Revda ⓘ Revdinskiy Massif
Rezhevsky District Lipovsk pegmatite field ⓘ Lipovka Mine (Lipovskoe Mine; Lipovskaya Mine; Lipovaya Mine)	Igor.V. Pekov (2008)
ⓘ Tochilnogorskoe deposit	Свиблов et al. (2009)
Yekaterinburg ⓘ Mount Bolshoy Bikilyar	Kislov et al. (2026)
ⓘ Syum-Keu Ophiolite Massif	Shabutdinov et al. (2024)
Tuva Kaa-Khemsky District Kaakhem ophiolite belt ⓘ Malye Kopty massif	Murzin et al. (2009)
Tes-Khemsky District ⓘ Agardag ultramafic massif	Palyanova et al. (2018)
Yamalo-Nenets Autonomous Okrug Priuralsky District ⓘ Kharcheruz massif	Yurichev (2021)
Shuryshkarskiy District Voikar-Syninskiy ultrabasite complex ⓘ Malaya Kharamatalou river (left bank)	Pekov et al. (2024)
Zabaykalsky Krai Sretensky District Sretensk ⓘ Molodovsky Au occurrence	Tatarinov et al. (2007)

Saudi Arabia
Medina Region ⓘ Al ‘Ays ophiolite complex	Ahmed et al. (2015)

Serbia
Central Serbia Raška District Raška Kopaonik ⓘ Korlace deposit	Milojkovic (1977)

Slovakia
Banská Bystrica Region Banská Štiavnica District Vysoká ⓘ Zlatno	Koděra et al. (1986)
Brezno District ⓘ Pohronská Polhora	Koděra et al. (1986)
Poltár District Breznička ⓘ Breznička asbestos deposit	Koděra et al. (1986)
ⓘ Málinec	Koděra et al. (1986)
ⓘ Uhorské	Koděra et al. (1986)
Revúca District Držkovce ⓘ Serpentinite outcrop	Koděra et al. (1986)
Jelšava ⓘ Slovenská skala	Koděra et al. (1986)
ⓘ Muránska Dlhá Lúka	Koděra et al. (1986)
ⓘ Muránska Dlhá Lúka talc deposit	Koděra et al. (1989)
Ploské Hámor - Forovo ⓘ Serpentinite deposit	Koděra et al. (1986)
Rimavská Sobota District ⓘ Klenovec	Koděra et al. (1986)
Žarnovica District Hodruša-Hámre Hodruša-Hámre mines Kopanice ⓘ U vápna-Železná hora	Kúšik R. et al. (in Slovak with French abstract)
ⓘ Včelín	Ružička P. et al. (Praha)
Košice Region Gelnica District Jaklovce ⓘ Švablica asbestos deposit	Koděra et al. (1986)
Košice-okolie District ⓘ Bukovec	Koděra et al. (1986)
Jasov ⓘ Phyllite outcrops	Koděra et al. (1986)
ⓘ Serpentinite outcrops	Koděra et al. (1986)
ⓘ Rudník	Koděra et al. (1986)
ⓘ Rudník serpentinite body	Grecula (1995)
Rožňava District Dobšiná ⓘ Dobšiná mining district	Juraj Majzlan et al. (2021)
ⓘ Danková serpentinite body	Háber et al. (Dankova, SGR Mnts)
ⓘ Dobšiná quarry	Štubňa et al. (2019)
ⓘ Teliatko serpentinite body	Pauliš et al. (2002)
Kobeliarovo ⓘ Serpentinite outcrop	Koděra et al. (1986)
ⓘ Krásnohorské Podhradie	Koděra et al. (1986)
ⓘ Štítnik	Koděra et al. (1986)
Prešov Region Prešov District Sedlice ⓘ Sedlice serpentinite and dunite occurrence	Koděra et al. (1986)

South Africa
Gauteng West Rand District Municipality Mogale City Local Municipality Muldersdrift ⓘ Muldersdrif ultramafic complex	Anhaeusser et al. (1978)
ⓘ Roodekrans greenstone complex	Anhaeusser et al. (1976)
KwaZulu-Natal Ugu District Municipality ⓘ Marble Delta	Cairncross et al. (1995)
Limpopo Mopani District Municipality Ba-Phalaborwa Local Municipality Phalaborwa ⓘ Palabora Mine	Braithwaite et al. (1994) +1 other reference
Sekhukhune District Municipality Fetakgomo Tubatse Local Municipality ⓘ Booysendal North Mine	Northam Platinum
Waterberg District Municipality Thabazimbi Local Municipality ⓘ Zondereinde Mine	Northam Platinum
Mpumalanga Ehlanzeni District Municipality Mbombela Local Municipality ⓘ Kaapschehoop	PMPB Meulenbeld collection photo ID ...
ⓘ Stella mine	PMPB Meulenbeld collection photo ID ...
Gert Sibande District Municipality Chief Albert Luthuli Local Municipality ⓘ Kalkkloof asbestos deposit	PMPB Meulenbeld collection
Waterval Uitkomst Complex ⓘ Nkomati Mine	Guenther et al. (2012)
Northern Cape ZF Mgcawu District Municipality Dawid Kruiper Local Municipality Gordonia ⓘ Klipkalk	Cairncross et al. (1995)

South Georgia and the South Sandwich Islands
ⓘ Candlemas Island	Tomblin (1979)

South Korea
South Chungcheong Province ⓘ Buyeo County	[var: Bowenite] GIA 2018

Spain
Andalusia Almería ⓘ Abla	INTAN specimens (Barcelona)
ⓘ Cerro del Almirez massif	Evans et al. (2012)
Macael ⓘ Marble Quarries	José Miguel Sola +1 other reference
Málaga Carratraca Los Jarales ⓘ San Juan Evangelista Mine (San Juan Mine)	Romero Silva (2003)
ⓘ San Agustín	Romero Silva (2003)
Estepona ⓘ Los Reales	Colección Juan A.M. Barnestein.
ⓘ San Manuel Mine	González-Pérez et al. (2022)
Genalguacil ⓘ Majal del Toro Mine	Colección Juan A.M. Barnestein.
Mijas ⓘ El Nebral Mine	Romero Silva (2003)
Ojén Ojén lherzolite massif ⓘ El Lentisco	Romero Silva (2003)
Ronda Massif ⓘ Arroyo de la Cueva	Colección Juan A.M. Barnestein.
Catalonia Barcelona Vallès Oriental Gualba ⓘ Gualba quarries
ⓘ Sala quarry	Locality description
Extremadura Badajoz Burguillos del Cerro ⓘ Monchi Mine	Casquet et al. (1998)
Galicia A Coruña ⓘ Herbeira ultramafic massif	Madon et al. (1991) +3 other references

Sudan
Blue Nile ⓘ Ingessana Hills	Ahmed Khidir Yagoub ()

Sweden
Jämtland County Åre ⓘ Handöl
Strömsund ⓘ Muruhatten
Jönköping County Jönköping Månsarp ⓘ Smålands Taberg
Norrbotten County Kiruna Kiruna Town Mining District ⓘ Kiirunavaara Mine
Örebro County Askersund Zinkgruvan ⓘ Zinkgruvan mine	Sandström et al. (2011)
Östergötland County Valdemarsvik ⓘ Skrikerum Mine	Sandström (2007)
Värmland County Filipstad Långban Ore District ⓘ Långban Mine	Gatedal (n.d.) +2 other references
ⓘ Nordmark Odal Field	Gatedal (n.d.)
ⓘ Persberg
Persberg ore district ⓘ Gåsgruvan Quarry	Östra Värmlands Mineral Society
Pajsberg ⓘ Harstigen Mine	Nysten (2004)
Västerbotten County Malå ⓘ Kristineberg Mine	Boliden Group
Norsjö ⓘ Njuggträskliden	Mikael Jansson ()
Västernorrland County Sundsvall ⓘ Alnö Complex	Sandström et al. (2010)
Västmanland County Sala Municipality Sala ⓘ Sala Silver Mine	Öhman (2003)

Switzerland
ⓘ Grisons	Stalder et al. (1998)
Albula Region Surses Bivio ⓘ Alp Tgavretga	Dietrich (1972) +1 other reference
Marmorera lake ⓘ Cotschens deposit	Dietrich (1972)
Bernina Region Poschiavo ⓘ Selva	Tarnuzzer (1902) +5 other references
ⓘ Quadrada (incl. Quadradin)	Tarnuzzer (1902) +5 other references
ⓘ Selva Quarry	De Quervain (1935) +4 other references
Maloja Region Bregaglia Upper Val Bregaglia Val Forno ⓘ Cavloc lake	Stalder et al. (1998)
Ticino Blenio Blenio Valley Carassino Valley ⓘ Cima Sgiu	Stalder et al. (1998)
Valais Goms Binn ⓘ Geisspfad area (TL)	Stalder et al. (1998)
ⓘ Geisspfad pass	Personally collected by Günter Frenz
Sierre Anniviers Grimentz Moiry Valley ⓘ Aiguilles Pass	Ansermet (2012)
ⓘ La Lé Pass	Ansermet (2012)
ⓘ Moiry Glacier	Steafan Ansermet
ⓘ Pointe du Tsaté	Ansermet (2012)
Zinal ⓘ Milon Pass	Ansermet (2012)
Visp Zermatt ⓘ Riffel Alp	Stalder et al. (1998)
ⓘ Zermatt - Saas Fee area	Lecacheur et al. (2024)

Taiwan
Hualien County Shoufeng Township ⓘ Fengtien nephrite belt	Wan et al. (1984) +1 other reference
Wanrong Township ⓘ Hon-Nieng Serpentine Quarry
Zhuoxi Township ⓘ Ruixin Quarry	Huang (2018)

Turkey
Balikesir Province Gönen District ⓘ Yolindi Cu-Fe skarn deposit	Kaya et al. (2023)
Kastamonu Province Hanönü District ⓘ Elekdağ metaophiolite	Günay et al. (2016)

UK
England Cornwall Grade-Ruan Kennack Kennack Cove (Kennack Sands) ⓘ Thorny Cliff	Alysson Rowan collection +2 other references
Mawgan-in-Meneage Goonhilly Downs ⓘ Countybridge Quarry	Golley et al. (1995)
Menheniot Lower Clicker ⓘ Clicker Tor Quarry	Golley et al. (1995)
Cumbria Allerdale Keswick Keswick ⓘ Castle Head	Day (1999)
North Yorkshire Scarborough ⓘ Whitby	Smith et al. (2014)
ⓘ York Potash Project	Kemp et al. (2016)
ⓘ Scotland	Tindle (2008)
Shetland Islands Mainland ⓘ Clay Geo	Curtis et al. (1969)
Unst ⓘ Lunda Wick	Curtis et al. (1969)
ⓘ Nikka Vord	Brindley et al. (1954)
Wales Ceredigion Ceulanymaesmawr Tal-y-bont ⓘ Esgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine)	Rust et al. (1988)

Ukraine
Crimea Alushta ⓘ Ayu-Dag Mountain	Spiridonov et al. (2019)

USA
Alaska Southeast Fairbanks Census Area ⓘ Slate Creek Asbestos; Alaska Asbestos; Eagle Asbestos Prospect	- (2008)
Valdez-Cordova Census Area Nizina Mining District ⓘ Spirit Mountain Prospect	- (2008)
Arizona Apache County Dennehotso ⓘ Garnet Ridge	Witkind (1963)
Cochise County ⓘ Bisbee	Graeme (1981)
Hendricks Gulch ⓘ Hendricks Mine	Luetcke (n.d.)
Queen Hill Copper Queen Mine ⓘ Holbrook Mine	Luetcke (n.d.)
Gila County Banner Mining District Christmas ⓘ Christmas Mine	Eastlick
Globe-Miami Mining District Miami-Inspiration Mining District ⓘ Webster Mountain area	Peterson (1962)
Miami-Inspiration Mining District Barnes Peak area ⓘ Granite Basin	Peterson (1962)
Pima County Sierrita Mountains Pima Mining District Twin Buttes ⓘ Twin Buttes Mine	MRDS database Dep. ID file #10103756
Pinal County Mammoth Mining District Tiger St. Anthony deposit ⓘ Mammoth-Saint Anthony Mine	Bideaux (1980) +1 other reference
Arkansas ⓘ Garland County	Howard (1987) +1 other reference
ⓘ Saline County	Howard (1987) +1 other reference
California Alameda County Cedar Mountain Mining District Cedar Mountain ⓘ Mendenhall No. 1 Mine (Cedar Mountain Mine; Mendenhall Chrome Mines; Mendenhall Mine; Newman Mine)	- (2005)
Calaveras County Carson Hill Mining District (Melones Mining District) ⓘ Carson Hill	[… (abstract) +3 other references
East Belt Murphys Mining District (Esmeralda Mining District; Sperry Mining District) Murphys Soapstone Hill ⓘ Ponderosa prospect	- (2005)
ⓘ Unknown Cr prospect [11]	- (2005)
San Andreas Mining District San Andreas ⓘ Ford Mine (Apex Mine)	Knopf (1929) +4 other references
El Dorado County Salmon Falls Mining District (Flagstaff Hill area) Flagstaff Hill Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine) ⓘ Steele Mine (Steel deposit)	- (2005)
Fresno County Coalinga ⓘ Coalinga Asbestos Mine (Coalinga Mine; Coalinga Asbestos deposit)	Mumpton et al. (1965) +1 other reference
ⓘ Humboldt County	Montoya et al. (1963)
Imperial County Coyote Mountains Carrizo Mountain ⓘ Black Lady Mine (Shell Canyon; Trenchard claim; Copper Contact lode; Coyote Mountain; Black Lady group; Cevn group)	Pemberton (1983)
Plaster City ⓘ Coyote Mountains Nickel prospect (Coyote Mountains Nickel deposit; Copper Contact lode)	Morton (1977) +2 other references
Inyo County Argus Mts (Argus Range) Zinc Hill Mining District Zinc Hill ⓘ Empress Mine	Cal Div of Mines Special Report 51
Los Angeles County Santa Catalina Island ⓘ Buffalo Springs Weather Station vicinity	Bailey (1941) +2 other references
Sierra Pelona Mts (Sierra Pelona Range) Green Valley Poteet Quarry area Unnamed ridge ⓘ Unnamed Asbestos occurrence	Sharp (1959) +2 other references
ⓘ Marin County	Pelletier
Placer County Forest Hill Divide area Hughes Mill ⓘ Daisy Bell claim (Daisy Belle claim)	- (2005)
Michigan Bluff Mining District (Michigan Bluff Mining deposit) Sage Hill ⓘ Bunker Mine (Bunker Mines; Blue Bird Mine [1880's]; Bay Tree prospect; Sunnyside occurrence)	- (2005)
Riverside County Menifee Mining District (Auld Mining District) Winchester ⓘ Hemet Magnesite Mine (Hemet Magnesite property)	Murdoch (1966)
ⓘ San Benito County	[var: Williamsite] Mason (1976)
ⓘ New Idria Mining District	Mumpton et al. (1965)
Picacho Peak ⓘ Victor claim (Victor Mine)	Cooper et al. (2003)
San Bernardino County Bristol Mountains Amboy area ⓘ New Method Mine	Otton +2 other references
Kingston Range Kingston Range District Kingston Peak ⓘ Beck Mine [1] (Beck deposits; Kingston Iron deposit; Iron Gossam; Beck Mine; Gossan No. 1; 2 & 5 claims)	USGS Bull1709D
Marble Mountains Cadiz ⓘ Iron Hat deposit (Iron Hat Iron deposit; Iron Hat Mine; Armstrong and Doran; Ironclad deposit; Iron-Clad deposit)	Econ Geol (1988)
San Francisco County San Francisco ⓘ Fort Point	www.dvminerals.com/thumbs.html
San Luis Obispo County Santa Lucia Mts (Santa Lucia Range) Cerro Alto ⓘ Sweetwater Mine	- (2005)
Santa Cruz County Santa Cruz ⓘ Pacific Cement and Aggregate Company quarry	Gross et al. (1965) +4 other references
Shasta County Klamath Mountains East Shasta Copper - Zinc Mining District Heroult ⓘ Shasta Iron Company group (Shasta Iron Mine and California Consolidated Mine)	- (2005)
Siskiyou County Dunsmuir ⓘ Little Castle Creek Mine (Castle Crag Mine; Brown Mine)	Wells et al. (1965) +1 other reference
Klamath Mountains Happy Camp Indian Creek area ⓘ Williamsite occurrence	Melhase (1934) +1 other reference
Sonoma County Healdsburg ⓘ Mill Creek area	Switzer (1951) +2 other references
Stanislaus County Black Wonder Mining District Copper Mountain ⓘ Del Puerto Canyon (Arroyo del Puerto)	Hawkes +2 other references
Red Mountain ⓘ Black Bart Mine group	- (2005)
Tehama County North Elder Creek group (Joyce Mine; Hill Mine; Noble Electric Steel Company Mine; SW Hill Mine; Elder Creek Mine) ⓘ Grau Mine (Gruu Mine)	- (2005)
Tuolumne County Jamestown District Jamestown ⓘ Premier Asbestos Mine	Wiebelt (1959) +2 other references
Stent ⓘ Mackey Mine	- (2005)
Colorado Grand County La Plata Mining District (California Mining District) ⓘ Mt. Vasquez; St. Louis; Milliken Occurrence	Eckel et al. (1997)
Huerfano County ⓘ Spanish Peaks	Eckel et al. (1997)
Lake County ⓘ St. Kevin - Independence	Eckel et al. (1997)
Larimer County State Line Kimberlite Mining District ⓘ Sloan diatremes	Eckel et al. (1997)
Stove Prairie Area Cache La Poudre River ⓘ Unnamed shaft	Eckel et al. (1997)
Connecticut Fairfield County Danbury ⓘ Old Quarry Nature Center	King's Mark Environmental Review Team Report (1984)
ⓘ Stratford	Crowley (1968)
Hartford County Burlington ⓘ Taine Mountain	Eric Briggs collection
Georgia Carroll County Villa Rica ⓘ Unnamed prospect (1)	Van Gosen (2005)
ⓘ Unnamed prospect (2)	Van Gosen (2005)
Cherokee County ⓘ Holly Springs	King (n.d.)
ⓘ Verde Antique Quarry
Fulton County Red Oak ⓘ Welcome-All Recreation Area	Cook (1978)
Murray County ⓘ Chatsworth	Cook (1978)
ⓘ Fort Mountain Mine	Cook (1978)
ⓘ Latch Mine	Van Gosen (2005)
Rabun County Burton Lake area ⓘ Burton Lake Olivine deposit	Hunter (1941)
ⓘ Laurel Creek complex	Van Gosen (2005)
ⓘ Towns County	Hunter (1941)
Idaho Adams County ⓘ Seven Devils Mining District	Rocks & Min. 70:244
Idaho County Harpster Mining District ⓘ Blacktail Asbestos Prospect	- (2005)
Maggie Creek Mining District ⓘ Kamiah Asbestos Mine	- (2005)
Kentucky Elliott County ⓘ Elliott County kimberlite	Williams et al. (1954)
Maine Androscoggin County Lewiston ⓘ City quarry	Fisher (1934) +1 other reference
Aroostook County ⓘ Mapleton	King et al. (1994)
ⓘ Haines Mountain Micromount Locality	Boucot et al. (1964)
TD R2 WELS ⓘ Porcupine Hill	pubs.usgs.gov (n.d.)
Franklin County Eustis ⓘ glacial drift bolders	[var: Bowenite] King et al. (1994)
Hancock County Deer Isle ⓘ Verde Antique quarry	King et al. (1994)
Piscataquis County Katahdin Iron Works ⓘ Katahdin Iron Works Mine	Houston
York County York ⓘ Cape Neddick	Wandke
Maryland Baltimore County Bare Hills ⓘ Bare Hills Serpentine Quarry East	[var: Williamsite] Ostrander et al. (1940)
Delight Soldiers' Delight ridge ⓘ Delight Quarry (Soldier's Delight Quarry; Dyer Quarry)	Bernstein (1980)
Cecil County ⓘ Line pit (Lowe's Mine)	- (2005)
Harford County Cardiff ⓘ Maryland Green Marble Corporation Quarry (Cardiff Serpentine Quarry)	[var: Williamsite] Ostrander et al. (1940) +1 other reference
Jarretsville-Dublin Mining District ⓘ Cherry Hill Mine	[var: Williamsite] Pearre (1960)
ⓘ Reed Mine	[var: Williamsite] Ostrander et al. (1940)
ⓘ Wilkins Mine (Wilkens Mine; John W. Carman Property)	[var: Williamsite] Ostrander et al. (1940)
Montgomery County Rockville ⓘ Hunting Hill Quarry	Bernstein (1980)
ⓘ Tschiffely (Wheatlands) Aggregate Quarry	Jat Thompson Collection
Massachusetts Berkshire County Cheshire ⓘ North Mountain Serpentine locality ("Dunite Locality" of Emerson)	"Western Massachusetts Mineral ...
Florida ⓘ Drury North Talc prospect	Western Massachusetts Geologic Resource Inventory et al. (Privately Published)
ⓘ Drury South Talc Prospect	Western Massachusetts Geologic Resource Inventory et al. (Privately Published)
ⓘ Drury Talc-Serpentine Locality	Western Massachusetts Geologic Resource Inventory et al. (Privately Published)
Savoy ⓘ Chamberlain Talc-Serpentine Locality	Western Massachusetts Geologic Resources Inventory et al. (Privately Pubkished)
ⓘ Ley Talc Mine	Western Massachusetts Geologic Resource Inventory et al. (Privately Published)
Essex County Lynnfield ⓘ Lynnfield serpentinite area	Castle et al. (2005)
Newbury ⓘ Devil's Basin	Sears (1905)
ⓘ Devil's Den (Devil's Den lime pit)	Rocks & Min.: 13:183. +1 other reference
Franklin County Rowe ⓘ Hoosac Talc-Serpentine locality
ⓘ Hoosac Tunnel Soapstone Quarry (Hoosac Talc Mine)
ⓘ Soapstone Ledges Talc-Serpentine locality
Hampden County Blandford ⓘ Osborne Soapstone quarry ?	"Western Massachusetts Mineral ...
ⓘ Westfield	Brownlow (MIT thesis)
Hampshire County Middlefield ⓘ Middlefield soapstone quarries (Metropolitan Soapstone Co. Quarry)	Former Alfred Patrie collection
Pelham ⓘ Pelham asbestos mine	Van Gosen (2005)
Middlesex County ⓘ Stoneham	[var: Bowenite] Gleba (2008)
Norfolk County Wrentham ⓘ West Wrentham	Museum of Natural History
Worcester County Bolton ⓘ Bolton Lime Quarries (Bolton Quarry; Whitcomb Quarry; Hildreth Quarry)	Emerson (1917)
Shrewsbury ⓘ West Shrewsbury steatite locality	Emerson (1917)
Michigan Dickinson County Felch ⓘ Metronite Quarry	Morris (1983)
ⓘ Rian Quarry	Morris (1983)
Marquette County ⓘ Carp River	Heinrich et al. (2004)
Ishpeming Township Ishpeming Greenstone belt (Marquette Greenstone belt) ⓘ Ropes Gold Mine	Morris (1983)
ⓘ Verde Antique Quarry	Morris (1983)
Marquette ⓘ Presque Isle	Heinrich et al. (2004)
Missouri Ste. Genevieve County ⓘ Avon diatreme	Sherwood et al. (1998)
Washington County ⓘ Pea Ridge Mine	Sherwood et al. (1998)
Montana Madison County ⓘ Little Mile Creek Asbestos Deposit (Cliff Lake)	- (2005)
Nevada Esmeralda County ⓘ Goldfield Mining District	Econ Geol (1989)
Eureka County ⓘ Eureka Mining District	Peter G. Vikre (1998)
Nye County Gabbs Mining District ⓘ Gabbs	Castor et al. (2004)
ⓘ Sierra Magnesite Mine	Castor et al. (2004)
Storey County ⓘ Clark Mining District	Castor et al. (2004)
New Hampshire Cheshire County Keene ⓘ Keene soapstone quarry ?
New Jersey Morris County Montville Township ⓘ Montville serpentine deposit	King (n.d.)
Sussex County ⓘ Franklin	Palache
ⓘ Franklin Mine	[var: Vorhauserite] Palache (1935)
ⓘ Mill site dump	FOMS Millsite Committee (1986)
New Mexico ⓘ Colfax County	Northrop et al. (1996)
Doña Ana County Organ Mountains ⓘ Organ Mining District	Northrop et al. (1996)
ⓘ Mineral Hill	Northrop et al. (1996)
ⓘ South Canyon Mining District	Hunt et al. (1937) +1 other reference
ⓘ Target Range Canyon	Hunt et al. (1937)
Grant County ⓘ Alum Mountain Mining District (Alum Mining District)	Northrop et al. (1996)
ⓘ Hanover-Fierro Mining District	Northrop et al. (1996)
Luna County Tres Hermanas Mountains Tres Hermanas Mining District South Peak (South Sisters Peak) ⓘ Spurrite skarn lens	NMGS 21st Field Conference
McKinley County ⓘ Buell Park area	Northrop et al. (1996)
Sandoval County ⓘ Cabezon Peak area	Northrop et al. (1996)
Socorro County ⓘ Magdalena Mining District	Gibbs (1989)
ⓘ Nitt Shaft	Loughlin et al. (1942) +1 other reference
ⓘ Unnamed prospect	Northrop et al. (1996)
ⓘ New York	Manchester (1931)
New York City Staten Island (Richmond County) ⓘ Swan Street	Collected David S. Bernstein- Feb. 2012
ⓘ Todt Hill Serpentinite	Collected by Steve Okulewicz
Orange County Town of Monroe Lake Mombasha ⓘ O'Neil Mine	[var: Jenkinsite] Marian Lupulescu (2008)
Town of Warwick Amity ⓘ Rhein Property	Maertens (2023)
Edenville Edenite Hill ⓘ Pipeline Excavation	King (n.d.)
Putnam County Town of Southeast ⓘ Tilly Foster Iron Mine	- (Dana, 1874) +1 other reference
Westchester County ⓘ New Rochelle	[var: Bowenite] Manchester (1931)
ⓘ Rye	Manchester (1931)
North Carolina Avery County Carvers Gap ⓘ Frank Mine	North Carolina NOA Site Screening Summary Report (2006)
Buncombe County Leicester ⓘ Juno Olivine Deposit	Georgia Geological Survey Bulletion ... +1 other reference
ⓘ Cherokee County	Excalibur Mineral Company specimen
Clay County Buck Creek ⓘ Buck Creek Mine (Cullakenee Mine)	www.handbookofmineralogy.org (2008)
ⓘ Jackson County
Webster-Balsam ⓘ Addie Olivine deposit (Mayland Stone)	Hunter (1941)
ⓘ Balsam Gap Olivine deposit	North Carolina NOA Site Screening ... +1 other reference
ⓘ Dark Ridge Olivine deposit	Hunter (1941)
ⓘ Webster-Addie ultramafic ring dike	Wilson et al. (1978)
ⓘ Macon County
Cowee Valley Ellijay Mining District ⓘ Deposit Number Nine (McGuire or Maguire Vermiculite property; Deposit No. 9; Ellijay Chromite prospect; Higdon Asbestos Mine)	North Carolina NOA Site Screening ... +1 other reference
ⓘ Moore County	Colney (1962)
ⓘ Yancey County	Betts (n.d.)
Day Book ⓘ Green Mountain Mine
ⓘ Unimin Mine	John Krygier
Oregon Grant County Canyon City Mining District ⓘ Chambers Mine (George Len)	- (2005)
ⓘ George Len Lode Occurrence	- (2005)
Josephine County Illinois River Mining District ⓘ Black Otter Claim	- (2005)
ⓘ Crown Mine (Nichols Prospect; Hammer; Upper Hammon No. 38?)	- (2005)
Takilma Mining District ⓘ Cowboy Mine (East Cowboy)	Koski
ⓘ Pennsylvania	[var: Bowenite] Mason (1976)
Berks County Morgantown ⓘ Grace Mine	The Mineralogy of Pennsylvania 1966-1975 +2 other references
Chester County Newlin Township ⓘ Corundum Hill	Samual S. Gordon +1 other reference
West Nottingham Township ⓘ Goat Hill Barrens	Hower et al. (2024)
Lancaster County Fulton Township ⓘ Cedar Hill Quarry (Stoltzfuss Quarry)	[var: Williamsite]
ⓘ Haines & Kibblehouse Penn-Maryland Materials Quarry	Personally Collected 4/12/2008
ⓘ Jenkins Mine (Jenkins Corner; North Rock Springs)	[var: Williamsite] A.Mathauser collection
ⓘ Line pit (Lowe's Chromite Mine)	[var: Williamsite] The Mineralogy of Pennsylvania +1 other reference
ⓘ Red Pit Mine	Lapham et al. (1976)
ⓘ Rock Springs Iron Mine	Observed David S. Bernstein- June of ...
Little Britain Township Texas ⓘ Wood's Chrome Mine	[var: Chrome antigorite, var: Williamsite] Samuel S. Gordon Pg.124 +3 other references
Lebanon County Cornwall Borough (Cornwall) ⓘ Cornwall Mines (Cornwall Iron Mine)	Weber et al. (1965)
Northampton County Easton ⓘ Chestnut Hill	[var: Bowenite] Lapham et al. (1965)
C.K. Williams Quarry complex ⓘ Sherrer Quarry	[var: Bowenite] Gordon (1922)
Philadelphia County Lafayette Station ⓘ Prince's Soapstone Quarry	Samuel S. Gordon +1 other reference
Rhode Island Newport County Newport ⓘ Brenton Cove
Providence County Cumberland ⓘ Iron Mine Hill quarry
ⓘ Sneech Pond copper mines (Copper Mine Hill)	[var: Bowenite] AmMin 22:279
East Providence ⓘ Ide's Ledge quarry	M. W. Kieron collection
Johnston ⓘ Brown Lime quarry
ⓘ Interstate 295 / US Route 6 road cuts	Michael W. Kieron coll.
ⓘ Jenkins Lime quarry
Lincoln ⓘ Arnold Lime quarry	[var: Bowenite]
Lime Rock ⓘ Conklin Quarry	[var: Bowenite] Carr et al. (1981) +2 other references
ⓘ Dexter Quarry (Dexter Lime Quarry)	[var: Bowenite] Gosse (1962) +1 other reference
ⓘ Harris Quarry (Harris Lime Quarries)	[var: Bowenite]
Manville ⓘ Manville Talc Mine (Manville Mine)	Museum of Natural History
Providence Manton ⓘ Manton Avenue Quarry	Stewart (1930) +1 other reference
ⓘ Smithfield	[var: Bowenite] Mason (1976)
Tennessee Union County ⓘ Clarks Hollow kimberlite (Norris Lake kimberlite)	Paris (2011)
Utah Juab County East Tintic Mountains ⓘ Tintic Mining District	Bullock (1981)
San Juan County ⓘ Moses Rock	Schulze et al. (2014)
Sevier County Antelope Range Henry Mining District ⓘ Trinity prospect (Monzonite Hill)	Bullock (1981)
Utah County East Tintic Mountains ⓘ East Tintic Mining District	Bullock (1981)
Washington County Mineral Mountain Mining District ⓘ Emma Mine	Bullock (1981)
Vermont Orleans & Lamoille Cos. Lowell & Eden ⓘ Belvidere Mountain Quarries	Chidester et al. (1978) +1 other reference
Orleans County Troy ⓘ Troy asbestos deposit	pubs.usgs.gov (n.d.)
Washington County Duxbury ⓘ Duxbury serpentine quarry	Rocks & Min. Vol. 71 (1996)
ⓘ Mad River Talc Mine	pubs.usgs.gov (n.d.)
Waterbury ⓘ Waterbury Talc Mine	pubs.usgs.gov (n.d.)
Windham County Newfane ⓘ Adams Brook nickel prospect	[var: Bowenite] Rocks & Min. Vol. 71 (1996)
Windsor County Ludlow ⓘ Argonaut Mine	P. Cristofono collection
ⓘ Frostbite Mine	USGS OFR 2006-1229
Rochester ⓘ Vermont Verde Antique International quarry	Rocks & Min. Vol. 71 (1996)
Virginia Carroll County ⓘ Pipers Gap	Dietrich (1990)
ⓘ Fairfax County	Dietrich (1990)
Grayson County ⓘ Glades	Dietrich (1990)
Henry County ⓘ Rich Acres Norite	Dietrich (1990)
Washington Okanogan County Conconully Mining District ⓘ Johnson Creek Mine	Derkey et al. (1990, November) +1 other reference
Methow Mining District Gold Creek ⓘ Antimony Bell Mine	Derkey et al. (1990, November) +1 other reference
Nespelem Mining District ⓘ Stepstone Prospect	Valentine et al. (1960) +3 other references
Skagit County Hamilton Mining District ⓘ Cultus Mountain Nickel Occurrence	Cannon (1975)
Whatcom County Mount Baker Mining District Sumas Mountain ⓘ Breckenridge Creek Mine	Derkey et al. (1990, November) +1 other reference
ⓘ Sumas Mountain Chromite Deposits	- (2005)
Wisconsin Rusk County ⓘ Eisenbrey deposit (Thornapple deposit)	May (1996)

Zimbabwe
Mashonaland Central Bindura District ⓘ Trojan Nickel Mine	Asa Resource Group plc
Mashonaland West Kadoma District ⓘ Perseverance mine	Clutten et al. (1981)
Midlands Kwekwe District ⓘ Empress Mine	Eales (1964)
Zvishavane District Zvishavane (Shabani; Shabanie; Shavani) ⓘ Asbestos Mine (Shabani; Shabanie Mine)	Weber et al. (1965)

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Antigorite

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