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Magnesio-arfvedsonite

A valid IMA mineral species

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Photos of Magnesio-arfvedsonite (38)Discuss Magnesio-arfvedsonite

Magnesio-arfvedsonite Gallery Search Photos of Magnesio-arfvedsonite

Edit Magnesio-arfvedsonite Add Synonym Edit CIF structures Clear Cache

Magnesio-arfvedsonite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Magnesio-arfvedsonite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Magnesio-arfvedsonite, etc.

Kajlidongri Mine, Jhabua District, Madhya Pradesh, India

Magnesio-arfvedsonite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Magnesio-arfvedsonite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Magnesio-arfvedsonite, etc.

Kajlidongri Mine, Jhabua District, Madhya Pradesh, India

Magnesio-arfvedsonite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Magnesio-arfvedsonite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

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About Magnesio-arfvedsoniteHide

Formula:

NaNa₂(Mg₄Fe³⁺)(Si₈O₂₂)(OH)₂

The arfvedsonite group minerals are sodium amphiboles defined with ^A(Na+K+2Ca)> 0.5 apfu and 0.5 apfu < ^C(Al+Fe³⁺+2Ti) < 1.5 apfu with Fe as the dominant element in the C³⁺ position.

Magnesio-arfvedsonite is defined with

A position: Na dominant
C²⁺ position: Mg dominant
C³⁺ position: Fe dominant
W position: (OH) dominant

Colour:

Bluish-black to black, purple

Lustre:

Vitreous

Hardness:

5 - 6

Crystal System:

Monoclinic

Member of:

Arfvedsonite Root Name Group > Sodium Amphibole Subgroup > w(OH,F,Cl)-dominant Amphibole Group > Amphibole Supergroup

Name:

For its relationship to arfvedsonite

Type Locality:

ⓘ Hpakant-Tawmaw Jade Tract, Hpakant Township (Hpakan; Phakant; Phakan), Mohnyin District, Kachin State, Myanmar

^CFe³⁺-dominant analogue of eckermannite.

Compare the chemically similar ferri-katophorite and magnesio-riebeckite.

Unique IdentifiersHide

Mindat ID:

2537

Long-form identifier:

mindat:1:1:2537:5

IMA Classification of Magnesio-arfvedsoniteHide

IMA status:

Approved

IMA status notes:

Renamed by the IMA

IMA Formula:

NaNa₂(Mg₄Fe³⁺)Si₈O₂₂(OH)₂

Approval year:

2013

Approval history:

Renamed by IMA: 2014

Classification of Magnesio-arfvedsoniteHide

Strunz-mindat (2026):

9.DE.25

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si₄O₁₁; Clinoamphiboles

Hey's CIM Ref.:

14.24.2

14 : Silicates not Containing Aluminum
24 : Silicates of Fe, Mg and alkalis

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
Marf	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Marf	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

Pronunciation of Magnesio-arfvedsoniteHide

Pronunciation:

Play	Recorded by	Country
	Jolyon Ralph	United Kingdom

Physical Properties of Magnesio-arfvedsoniteHide

Lustre:

Vitreous

Colour:

Bluish-black to black, purple

Streak:

Pale grey to dark bluish-grey.

Hardness:

5 - 6 on Mohs scale

Optical Data of Magnesio-arfvedsoniteHide

Type:

Biaxial (-)

RI values:

n_α = 1.66 n_β = 1.662 n_γ = 1.664

2V:

Measured: 33° to 40°, Calculated: 88°

Max. Birefringence:

δ = 0.004
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:

Moderate

Dispersion:

weak

Chemistry of Magnesio-arfvedsoniteHide

Mindat Formula:

NaNa₂(Mg₄Fe³⁺)(Si₈O₂₂)(OH)₂

The arfvedsonite group minerals are sodium amphiboles defined with ^A(Na+K+2Ca)> 0.5 apfu and 0.5 apfu < ^C(Al+Fe³⁺+2Ti) < 1.5 apfu with Fe as the dominant element in the C³⁺ position.

Magnesio-arfvedsonite is defined with

A position: Na dominant
C²⁺ position: Mg dominant
C³⁺ position: Fe dominant
W position: (OH) dominant

Element Weights:

Element	% weight
O	46.112 %
Si	26.982 %
Mg	11.675 %
Na	8.282 %
Fe	6.706 %
H	0.242 %

Calculated from ideal end-member formula.

Elements listed:

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

Chemical AnalysisHide

Oxide wt%:

	1	2
SiO₂	53.22 %	55.29 %
TiO₂	0.37 %	1.86 %
Al₂O₃	2.31 %	0.21 %
FeO	14.01 %	10.52 %
MnO	0.05 %	0.25 %
MgO	15.56 %	14.02 %
CaO	2.00 %	2.56 %
Na₂O	8.34 %	7.74 %
K₂O	0.56 %	2 %
Cl	0.01 %
F	0.81 %	1.43 %
Fe₂O₃		3.77 %
Li₂O		0.05 %
H₂O		1.21 %
O=F		-0.6 %
Total:	97.24 %	100.31 %

Empirical formulas:

Sample ID	Empirical Formula
2	(Na0.569K0.369)0.938 (Na1.603Ca0.397)2(Mg3.025Feii1.273FeIII0.411Ti0.202Al0.036Mnii0.031Li0.029)5.007Si8.002O22 ((OH)1,168F0,655O0.168)2

Sample references:

ID	Locality	Reference	Notes
1	Mud Tank Vermiculite Mine, Alcoota Station, Central Desert Region, Northern Territory, Australia	Currie, K. L., Knutson, J., Temby, P. A. (1992) The Mud Tank carbonatite complex, central Australia - an example of metasomatism at mid-crustal levels. Contributions to Mineralogy and Petrology, 109 (3) 326-339 doi:10.1007/bf00283322	Average of 6 analyses. Sample taken from a silicate rich carbonatite.
2	Coyote Peak, Humboldt County, California, USA	Hawthorne, Frank C., Oberti, R., Zanetti, A., Czamanske, G. K. (1998) The role of Ti in hydrogen-deficient amphiboles: sodic-calcic and sodic amphiboles from Coyote Peak, California. The Canadian Mineralogist, 36 (5). 1253-1265	Analyzed by single crystal X-ray and electron- and ion-microprobe techniques. The sample is also analyzed for Li and H.

Crystallography of Magnesio-arfvedsoniteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

B2/m

Setting:

C2/m

Cell Parameters:

a = 9.867(1) Å, b = 17.928(2) Å, c = 5.2839(6) Å
β = 103.799(2)°

Ratio:

a:b:c = 0.55 : 1 : 0.295

Unit Cell V:

907.72 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0020742	Magnesio-arfvedsonite	Oberti R, Boiocchi M, Hawthorne F C, Ball N A, Harlow G E (2015) Magnesio-arfvedsonite from Jade mine tract, Myanmar: mineral description and crystal chemistry Mineralogical Magazine 79 253-260		2015	Jade mine tract, Myanmar	0	293
0007427	Magnesio-arfvedsonite	Ghose S, Kersten M, Langer K, Rossi G, Ungaretti L (1986) Crystal field spectra and Jahn Teller effect of Mn3+ in clinopyroxene and clinoamphiboles from India Physics and Chemistry of Minerals 13 291-305		1986		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Magnesio-arfvedsonite'
loop_
_publ_author_name
'Oberti R'
'Boiocchi M'
'Hawthorne F C'
'Ball N A'
'Harlow G E'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 79 
_journal_year 2015
_journal_page_first 253
_journal_page_last 260
_publ_section_title
;
 Magnesio-arfvedsonite from Jade mine tract, Myanmar:
 mineral description and crystal chemistry
;
_database_code_amcsd 0020742
_chemical_compound_source 'Jade mine tract, Myanmar'
_chemical_formula_sum 'Na2.53 K.04 Mg4.26 Fe.62 Al.12 Ti.03 Ca.4 Mn.01 Si7.99 O24 F.02 H1.98'
_cell_length_a 9.8666
_cell_length_b 17.9283
_cell_length_c 5.2839
_cell_angle_alpha 90
_cell_angle_beta 103.799
_cell_angle_gamma 90
_cell_volume 907.700
_exptl_crystal_density_diffrn      3.035
_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_occupancy
_atom_site_U_iso_or_equiv
Na1   0.00000   0.50000   0.00000   0.24000   0.02500
K1   0.00000   0.50000   0.00000   0.04000   0.02500
Na2   0.02690   0.50000   0.07890   0.12100   0.03580
Na3   0.00000   0.47220   0.00000   0.23900   0.02960
Mg1   0.00000   0.08931   0.50000   0.97500   0.00920
Fe1   0.00000   0.08931   0.50000   0.02500   0.00920
Mg2   0.00000   0.18136   0.00000   0.67500   0.01010
Fe2   0.00000   0.18136   0.00000   0.25500   0.01010
Al2   0.00000   0.18136   0.00000   0.05500   0.01010
Ti2   0.00000   0.18136   0.00000   0.01500   0.01010
Mg3   0.00000   0.00000   0.00000   0.96000   0.00860
Fe3   0.00000   0.00000   0.00000   0.04000   0.00860
Na4   0.00000   0.27565   0.50000   0.78500   0.01760
Ca4   0.00000   0.27565   0.50000   0.20000   0.01760
Fe4   0.00000   0.27565   0.50000   0.01000   0.01760
Mn4   0.00000   0.27565   0.50000   0.00500   0.01760
Si1   0.27914   0.08555   0.29283   1.00000   0.00770
Si2   0.28644   0.17171   0.79961   0.99750   0.00830
Al2   0.28644   0.17171   0.79961   0.00250   0.00830
O1   0.11205   0.08691   0.21497   1.00000   0.00940
O2   0.11851   0.16938   0.73005   1.00000   0.01050
O3   0.10746   0.00000   0.71104   0.99000   0.01110
F3   0.10746   0.00000   0.71104   0.01000   0.01110
O4   0.36231   0.24944   0.79553   1.00000   0.01310
O5   0.34806   0.12899   0.08433   1.00000   0.01240
O6   0.34186   0.11724   0.58627   1.00000   0.01270
O7   0.33811   0.00000   0.28808   1.00000   0.01260
H   0.19000   0.00000   0.74300   0.99000   0.01000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Na1 0.02030 0.02870 0.03080 0.00000 0.01550 0.00000
K1 0.02030 0.02870 0.03080 0.00000 0.01550 0.00000
Na2 0.02620 0.05360 0.02680 0.00000 0.00480 0.00000
Na3 0.02930 0.01140 0.05920 0.00000 0.03220 0.00000
Mg1 0.00930 0.01010 0.00850 0.00000 0.00260 0.00000
Fe1 0.00930 0.01010 0.00850 0.00000 0.00260 0.00000
Mg2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000
Fe2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000
Al2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000
Ti2 0.00900 0.01120 0.01010 0.00000 0.00240 0.00000
Mg3 0.00900 0.00910 0.00770 0.00000 0.00190 0.00000
Fe3 0.00900 0.00910 0.00770 0.00000 0.00190 0.00000
Na4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000
Ca4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000
Fe4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000
Mn4 0.01900 0.01510 0.02190 0.00000 0.01140 0.00000
Si1 0.00740 0.00810 0.00730 -0.00030 0.00150 -0.00050
Si2 0.00770 0.00930 0.00790 -0.00120 0.00180 -0.00040
Al2 0.00770 0.00930 0.00790 -0.00120 0.00180 -0.00040
O1 0.00770 0.01110 0.00910 -0.00090 0.00160 -0.00130
O2 0.00930 0.01120 0.01050 -0.00100 0.00130 -0.00110
O3 0.00980 0.01170 0.01140 0.00000 0.00160 0.00000
F3 0.00980 0.01170 0.01140 0.00000 0.00160 0.00000
O4 0.01610 0.01120 0.01210 -0.00470 0.00390 -0.00010
O5 0.00910 0.01660 0.01140 0.00010 0.00230 0.00440
O6 0.01070 0.01660 0.01020 0.00030 0.00110 -0.00370
O7 0.01080 0.00880 0.01820 0.00000 0.00320 0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
8.451 Å	(46)
3.399 Å	(68)
3.273 Å	(39)
3.144 Å	(63)
2.970 Å	(34)
2.708 Å	(100)
2.526 Å	(60)
2.167 Å	(37)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere	>4.45
17 : Marine authigenic Hadean minerals (see also #24)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks
36 : Carbonatites, kimberlites, and related igneous rocks

Type Occurrence of Magnesio-arfvedsoniteHide

Type Locality:

ⓘ Hpakant-Tawmaw Jade Tract, Hpakant Township (Hpakan; Phakant; Phakan), Mohnyin District, Kachin State, Myanmar

Place of Conservation of Type Material:

Department of Earth and Planetary Sciences, American Museum of Natural History, New York, NY, USA, catalogue number H35024

Synonyms of Magnesio-arfvedsoniteHide

IMA2013-137

Szechenyite

Other Language Names for Magnesio-arfvedsoniteHide

Dutch:Magnesio-arfvedsoniet

German:Magnesio-Arfvedsonit

Japanese:苦土アルヴェゾン閃石

Russian:Магнезиоарфведсонит

Simplified Chinese:镁亚铁纳闪石
镁钠铁闪石

Varieties of Magnesio-arfvedsoniteHide

Anophorite	A Ti- and Ca-bearing variety of magnesio-arfvedsonite. Originally reported from Michelsberg Quarry, Katzenbuckel Mt., Eberbach, Odenwald, Baden-Württemberg, Germany.
Chromium-bearing Magnesio-arfvedsonite	Cr bearing (up to Fe:Cr = 1:1) variety of Magnesio-arfvedsonite from jadeitites of Myanmar.

Relationship of Magnesio-arfvedsonite to other SpeciesHide

Member of:

Arfvedsonite Root Name Group > Sodium Amphibole Subgroup > w(OH,F,Cl)-dominant Amphibole Group > Amphibole Supergroup

Other Members of Arfvedsonite Root Name Group:

Arfvedsonite	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
'Fluoro-arfvedsonite'	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂F₂
Magnesio-fluoro-arfvedsonite	NaNa₂(Mg₄Fe³⁺)[Si₈O₂₂]F₂	Mon. 2/m : B2/m
Potassic-arfvedsonite	KNa₂(Fe²⁺₄Fe³⁺)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
Potassic-magnesio-arfvedsonite	KNa₂(Mg₄Fe³⁺)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
Potassic-magnesio-fluoro-arfvedsonite	KNa₂(Mg₄Fe³⁺)(Si₈O₂₂)F₂	Mon. 2/m : B2/m

Common AssociatesHide

Associations Based on Photo Data:

17 photos of Magnesio-arfvedsonite associated with Pectolite	NaCa₂Si₃O₈(OH)
17 photos of Magnesio-arfvedsonite associated with Albite	Na(AlSi₃O₈)
12 photos of Magnesio-arfvedsonite associated with Jinshajiangite	BaNaFe²⁺₄Ti₂(Si₂O₇)₂O₂(OH)₂F
10 photos of Magnesio-arfvedsonite associated with Carletonite	KNa₄Ca₄Si₈O₁₈(CO₃)₄(OH,F) · H₂O
10 photos of Magnesio-arfvedsonite associated with Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
8 photos of Magnesio-arfvedsonite associated with Aegirine	NaFe³⁺Si₂O₆
8 photos of Magnesio-arfvedsonite associated with Orthoclase	K(AlSi₃O₈)
6 photos of Magnesio-arfvedsonite associated with Calcite	CaCO₃
6 photos of Magnesio-arfvedsonite associated with Astrophyllite	K₂NaFe²⁺₇Ti₂[Si₄O₁₂]₂O₂(OH)₄F
4 photos of Magnesio-arfvedsonite associated with Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂

Related Minerals - Strunz-mindat Grouping Hide

9.DE.	Shojiite	Na(NaMg)Mg₅Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.	Clino-suenoite	◻Mn²⁺₂(Mg₅)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.	Mangani-eckermannite	NaNa₂(Mg₄Mn³⁺)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.05	'Permanganogrunerite'	◻{Mn²⁺₂}{Mn²⁺₅}(Si₈O₂₂)(OH)₂	Mon.
9.DE.05	Cummingtonite	◻Mg₂Mg₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.05	Ferri-fluoro-leakeite	NaNa₂(Mg₂Fe³⁺₂Li)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.05	Grunerite	◻Fe²⁺₂Fe²⁺₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.05	Clino-holmquistite Root Name Group	◻Li₂(C²⁺₃C³⁺₂)(Si₈O₂₂)w₂	Mon.
9.DE.10	Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.10	Fluoro-cannilloite	CaCa₂(Mg₄Al)(Si₅Al₃)O₂₂F₂	Mon. 2/m : B2/m
9.DE.10	Joesmithite	Pb²⁺Ca₂(Mg₃Fe³⁺₂)(Si₆Be₂)O₂₂(OH)₂	Mon. 2/m : P2/b
9.DE.10	Clino-ferro-suenoite	◻Mn²⁺₂(Fe²⁺₅)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Fluoro-tremolite	◻Ca₂Mg₅(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.10	'Parvo-manganotremolite'	◻{CaMn²⁺}{Mg₅}(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Magnesio-ferri-hornblende	◻Ca₂(Mg₄Fe³⁺)[(Si₇Al)O₂₂](OH)₂	Mon. 2/m : B2/m
9.DE.10	Ferro-ferri-hornblende	◻Ca₂(Fe²⁺₄Fe³⁺)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	'Ferro-cannilloite'	CaCa₂(Fe²⁺₄Al)(Si₅Al₃O₂₂)OH₂
9.DE.10	'Ferro-ferri-cannilloite'	CaCa₂(Fe²⁺₄Fe³⁺)(Si₅Al₃O₂₂)OH₂
9.DE.10	'Ferro-fluoro-actinolite'	◻{Ca₂}{Fe₅}(Si₈O₂₂)F₂
9.DE.10	'Ferro-fluoro-hornblende'	◻Ca₂(Fe²⁺₄Al)(AlSi₇O₂₂)F₂
9.DE.10	Magnesio-ferri-fluoro-hornblende	◻Ca₂(Mg₄Fe³⁺)(AlSi₇O₂₂)F₂	Mon. 2/m : B2/m
9.DE.10	'Ferro-ferri-fluoro-hornblende'	◻Ca₂(Fe²⁺₄Fe³⁺)(AlSi₇O₂₂)F₂
9.DE.10	'Ferri-fluoro-tschermakite'	◻{Ca₂}{Mg₃Fe³⁺₂}(Al₂Si₆O₂₂)F₂
9.DE.10	'Ferro-ferri-fluoro-tschermakite'	◻{Ca₂}{Fe²⁺₃Fe³⁺₂}(Al₂Si₆O₂₂)F₂
9.DE.10	'Ferro-fluoro-tschermakite'	◻{Ca₂}{Fe²⁺₃Al₂}(Al₂Si₆O₂₂)F₂
9.DE.10	'Fluoro-tschermakite'	◻{Ca₂}{Mg₃Al₂}(Al₂Si₆O₂₂)F₂
9.DE.10	'Magnesio-fluoro-hornblende'	◻Ca₂(Mg₄Al)(AlSi₇O₂₂)F₂
9.DE.10	Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	'Ferro-ferri-tschermakite'	◻{Ca₂}{Fe²⁺₃Fe³⁺₂}(Al₂Si₆O₂₂)(OH)₂	Mon.
9.DE.10	'Cannilloite'	CaCa₂(Mg₄Al)(Si₅Al₃O₂₂)OH₂	Mon.
9.DE.10	Tschermakite	◻Ca₂(Mg₃Al₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.10	'Ferri-tschermakite'	◻Ca₂(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂	Mon.
9.DE.10	Ferro-actinolite	◻Ca₂Fe²⁺₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.10	Ferro-hornblende	◻Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.10	Ferro-tschermakite	◻Ca₂(Fe²⁺₃Al₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.15	Potassic-chloro-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂Cl₂	Mon. 2/m : B2/m
9.DE.15	'Ferro-fluoro-pargasite'	(Na)(Ca₂)(Fe²⁺₄Al)(Al₂Si₆O₂₂)F₂
9.DE.15	'Potassic-ferro-chloro-edenite'	KCa₂Fe²⁺₅(AlSi₇O₂₂)Cl₂
9.DE.15	'Ferro-ferri-sadanagaite'	NaCa₂(Fe²⁺₃Fe³⁺₂)(Al₃Si₅O₂₂)(OH)₂	Mon.
9.DE.15	Hastingsite	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Fluoro-edenite	NaCa₂Mg₅(Si₇Al)O₂₂F₂	Mon. 2/m : P2/m
9.DE.15	Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Magnesio-fluoro-hastingsite	NaCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	Potassic-fluoro-hastingsite	KCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	Potassic-chloro-hastingsite	KCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂Cl₂	Mon. 2/m : B2/m
9.DE.15	'Unnamed (F-dominant analogue of Ferri-kaersutite)'	(Na,K)Ca₂[Mg₃(Fe³⁺,Fe²⁺)Ti](Si₆Al₂O₂₂)(F,O)₂	Mon. 2/m : B2/m
9.DE.15	Edenite	NaCa₂Mg₅(Si₇Al)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Potassic-sadanagaite	KCa₂(Mg₃Al₂)(Al₃Si₅O₂₂)(OH)₂	Mon. 2
9.DE.15	Ferri-kaersutite	NaCa₂(Mg₃Fe³⁺Ti)(Si₆Al₂O₂₂)O₂	Mon. 2/m : B2/m
9.DE.15	Potassic-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Potassic-ferro-sadanagaite	KCa₂(Fe²⁺₃Al₂)(Al₃Si₅O₂₂)(OH)₂	Mon.
9.DE.15	Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂	Mon. 2/m : B2/m
9.DE.15	'Ferro-chloro-pargasite'	NaCa₂(Fe²⁺₄Al)(Al₂Si₆O₂₂)Cl₂
9.DE.15	Potassic-fluoro-pargasite	KCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	Potassic-ferro-ferri-sadanagaite	KCa₂(Fe²⁺₃Fe³⁺₂)(Al₃Si₅O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.15	Fluoro-pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂F₂	Mon. 2/m : B2/m
9.DE.15	'Parvo-mangano-edenite'	{Na}{CaMn²⁺}{Mg₅}(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.15	Ferro-fluoro-edenite	NaCa₂Fe²⁺₅(AlSi₇O₂₂)F₂	Mon. 2/m : B2/m
9.DE.15	Mangani-pargasite	NaCa₂(Mg₄Mn³⁺)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Sadanagaite	NaCa₂(Mg₃Al₂)(Si₅Al₃O₂₂)(OH)₂	Mon.
9.DE.15	Magnesio-hastingsite	NaCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	'Ferri-sadanagaite'	NaCa₂(Mg₃Fe³⁺₂)(Al₃Si₅O₂₂)(OH)₂
9.DE.15	'Ferro-sadanagaite'	NaCa₂(Fe₃Al₂)(Al₃Si₅O₂₂)(OH)₂
9.DE.15	'Ferri-fluoro-sadanagaite'	{Na}{Ca₂}{Mg₃Fe³⁺₂}(Al₃Si₅O₂₂)F₂
9.DE.15	'Ferro-ferri-fluoro-sadanagaite'	{Na}{Ca₂}{Fe²⁺₃Fe³⁺₂}(Al₃Si₅O₂₂)F₂
9.DE.15	'Ferro-fluoro-sadanagaite'	{Na}{Ca₂}{Fe²⁺₃Al₂}(Al₃Si₅O₂₂)F₂
9.DE.15	'Fluoro-sadanagaite'	{Na}{Ca₂}{Mg₃Al₂}(Al₃Si₅O₂₂)F₂
9.DE.15	'Potassic-chloro-sadanagaite'	KCa₂(Mg₃Al₂)(Al₃Si₅O₂₂)Cl₂
9.DE.15	'Potassic-ferro-chloro-sadanagaite'	KCa₂(Fe²⁺₃Al₂)(Al₃Si₅O₂₂)Cl₂
9.DE.15	Ferro-edenite	NaCa₂Fe²⁺₅(Si₇Al)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Oxo-magnesio-hastingsite	NaCa₂(Mg₃(Fe³⁺_2-x,Ti_x))₅(Si₆Al₂O₂₂)O₂	Mon. 2/m : B2/m
9.DE.15	Potassic-ferro-pargasite	KCa₂(Fe²⁺₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Potassic-hastingsite	KCa₂(Fe²⁺₄Fe³⁺)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.15	'Fluoro-hastingsite'	NaCa₂(Fe²⁺₄Fe³⁺)(Al₂Si₆O₂₂)F₂
9.DE.15	Potassic-magnesio-hastingsite	KCa₂(Mg₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Vanadio-pargasite	NaCa₂(Mg³⁺₄V)(Al₂Si₆)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	'Ferro-kaersutite'	NaCa₂(Fe²⁺₃AlTi)(Si₆Al₂O₂₂)O₂	Mon.
9.DE.15	Chromio-pargasite	NaCa₂(Mg₄Cr)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.15	Ferro-pargasite	NaCa₂(Fe²⁺₄Al)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Ghoseite'	◻[Mn²⁺Na][Mg₄Al]Si₈O₂₂(OH)₂
9.DE.20	Potassic-ferro-taramite	K(CaNa)(Fe²⁺₃Al₂)(Si₆Al₂)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferri-fluoro-katophorite	Na(CaNa)(Mg₄Fe³⁺)(AlSi₇O₂₂)F₂	Mon. 2/m : B2/m
9.DE.20	Barroisite	◻(CaNa)(Mg₃Al₂)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Fluoro-richterite	Na(CaNa)Mg₅(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.20	Potassic-ferro-ferri-taramite	K(CaNa)(Fe²⁺₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Potassic-ferri-katophorite'	K(CaNa)(Mg₄Fe³⁺)(AlSi₇O₂₂)(OH)₂
9.DE.20	'Potassic-ferro-richterite'	K(CaNa)Fe²⁺₅(Si₈O₂₂)(OH)₂
9.DE.20	Potassic-fluoro-richterite	K(CaNa)Mg₅(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.20	Potassic-richterite	K(CaNa)Mg₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferri-ghoseite	◻(Mn²⁺Na)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	Fluoro-taramite	Na(CaNa)(Mg₃Al₂)(Al₂Si₆O₂₂)F₂	Mon. 2/m : B2/m
9.DE.20	'Ferro-ferri-fluoro-katophorite'	Na(CaNa)(Fe²⁺₄Fe³⁺)(AlSi₇O₂₂)F₂	Mon.
9.DE.20	Richterite	Na(CaNa)Mg₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferri-winchite	◻(NaCa)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Fluoro-katophorite'	Na(CaNa)(Mg₄Al)(AlSi₇O₂₂)F₂	Mon.
9.DE.20	Hjalmarite	Na(NaMn)Mg₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferro-taramite	Na(CaNa)(Fe²⁺₃Al₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Clinoferroholmquistite'	◻Li₂[Fe²⁺₃Al₂]Si₈O₂₂(OH,F)₂
9.DE.20	Ferro-katophorite	Na(CaNa)(Fe²⁺₄Al)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Taramite	Na(CaNa)(Mg₃Al₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Potassic-fluoro-katophorite'	K(CaNa)(Mg₄Al)(AlSi₇O₂₂)F₂
9.DE.20	'Ferro-fluoro-katophorite'	Na(CaNa)(Fe²⁺₄Al)(AlSi₇O₂₂)F₂
9.DE.20	Ferri-katophorite	Na(CaNa)(Mg₄Fe³⁺)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Ferro-ferri-barroisite'	◻(CaNa)(Fe²⁺₃Fe³⁺₂)(AlSi₇O₂₂)(OH)₂
9.DE.20	Ferri-taramite	Na(CaNa)(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Potassic-ferro-ferri-katophorite'	K(CaNa)(Fe²⁺₄Fe³⁺)(AlSi₇O₂₂)(OH)₂
9.DE.20	'Ferro-ferri-winchite'	◻(CaNa)(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂
9.DE.20	Winchite	◻(CaNa)(Mg₄Al)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Ferro-fluoro-richterite'	{Na}{CaNa}{Fe²⁺₅}(Si₈O₂₂)F₂
9.DE.20	'Fluoro-winchite'	◻(CaNa)(Mg₄Al)(Si₈O₂₂)F₂
9.DE.20	'Ferro-fluoro-winchite'	◻{CaNa}{Fe²⁺₄Al}(Si₈O₂₂)F₂
9.DE.20	'Ferri-barroisite'	◻(CaNa)(Mg₃Fe³⁺₂)(AlSi₇O₂₂)(OH)₂
9.DE.20	'Ferro-ferri-taramite'	Na(CaNa)(Fe²⁺₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂
9.DE.20	'Ferri-fluoro-barroisite'	◻{CaNa}{Mg₃Fe³⁺₂}(AlSi₇O₂₂)F₂
9.DE.20	'Ferro-fluoro-barroisite'	◻{CaNa}{Fe²⁺₃Al₂}(AlSi₇O₂₂)F₂
9.DE.20	'Ferro-ferri-fluoro-barroisite'	◻{CaNa}{Fe²⁺₃Fe³⁺₂}(AlSi₇O₂₂)F₂
9.DE.20	'Fluoro-barroisite'	◻{CaNa}{Mg₃Al₂}(AlSi₇O₂₂)F₂
9.DE.20	Ferro-ferri-katophorite	Na(NaCa)(Fe²⁺₄Fe³⁺)(Si₇Al)O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Ferri-fluoro-taramite'	Na(CaNa)(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)F₂
9.DE.20	'Ferro-ferri-fluoro-taramite'	Na(CaNa)(Fe²⁺₃Fe³⁺₂)(Al₂Si₆O₂₂)F₂
9.DE.20	'Ferro-fluoro-taramite'	Na(CaNa)(Fe²⁺₃Al₂)(Al₂Si₆O₂₂)F₂
9.DE.20	'Potassic-ferri-taramite'	K(CaNa)(Mg₃Fe³⁺₂)(Al₂Si₆O₂₂)(OH)₂
9.DE.20	'Magnesiotaramite'	{Na}{CaNa}{Mg₃AlFe³⁺}(Al₂Si₆O₂₂)(OH)₂	Mon.
9.DE.20	'Ferro-barroisite'	◻(CaNa)(Fe²⁺₃Al₂)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Scandio-winchite	◻(NaCa)(Mg₄Sc)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Ferro-richterite	Na(CaNa)Fe²⁺₅(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	Katophorite	Na(CaNa){Mg₄Al)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.20	'Ferro-winchite'	◻(CaNa)(Fe²⁺₄Al)(Si₈O₂₂)(OH)₂	Mon.
9.DE.25	'Clino-sodic-fluoro-holmquistite'	{Na}{Li₂}{Mg₄Al}(Si₈O₂₂)F₂
9.DE.25	Ferro-ferri-nybøite	NaNa₂(Fe²⁺₃,Mg)Fe³⁺₂)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Clino-ferro-ferri-holmquistite	◻Li₂(Fe²⁺₃Fe³⁺₂)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Oxo-pargasite'	NaCa₂(Mg₃(Al_2-xTi_x))₅(Si₆Al₂O₂₂)O₂
9.DE.25	'Ferri-nybøite'	NaNa₂(Mg₃Fe³⁺₂)(AlSi₇O₂₂)(OH)₂	Mon.
9.DE.25	'Ferro-ferri-leakeite'	NaNa₂(Fe²⁺₂Fe³⁺₂Li)Si₈O₂₂(OH)₂	Mon.
9.DE.25	Ferro-ferri-fluoro-leakeite	NaNa₂(Fe²⁺₂Fe³⁺₂Li)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Ferri-leakeite	NaNa₂(Mg₂Fe³⁺₂Li)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Fluoro-pedrizite	NaLi₂(Mg₂Al₂Li)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Eckermannite	NaNa₂(Mg₄Al}Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Arfvedsonite	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Mangano-ferri-fluoro-leakeite'	NaNa₂(Mn²⁺₂Fe³⁺₂Li)(Si₈O₂₂)F₂	Mon.
9.DE.25	Ferri-obertiite	NaNa₂(Mg₃Fe³⁺Ti)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Riebeckite	◻Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Unnamed (Possible K-analogue of Ferri-obertiite)'	KNa₂((Mg,Fe,Na)₃Fe³⁺(Ti,Fe))Si₈O₂₂(O,F)₂
9.DE.25	Magnesio-fluoro-arfvedsonite	NaNa₂(Mg₄Fe³⁺)[Si₈O₂₂]F₂	Mon. 2/m : B2/m
9.DE.25	'Ferro-fluoro-glaucophane'	◻[Na₂][Fe²⁺₃Al₂]Si₈O₂₂F₂
9.DE.25	Oxo-mangani-leakeite	NaNa₂(Mn³⁺₄Li)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Fluoro-leakeite	NaNa₂(Mg₂Al₂Li)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Nybøite	NaNa₂(Mg₃Al₂)(AlSi₇O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Sodic-ferri-clinoferroholmquistite'	Na_0.5{Li₂}{Fe²⁺₃Fe³⁺₂}(Si₈O₂₂)(OH)₂	Mon.
9.DE.25	Potassic-arfvedsonite	KNa₂(Fe²⁺₄Fe³⁺)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Potassic-mangano-mangani-ungarettiite'	KNa₂(Mn²⁺₂Mn³⁺₃)Si₈O₂₂O₂
9.DE.25	Potassic-jeanlouisite	K(NaCa)(Mg₄Ti)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Ferri-pedrizite	NaLi₂(Mg₂Fe³⁺₂Li)Si₈O₂₂(OH)₂	Mon.
9.DE.25	Glaucophane	◻Na₂(Mg₃Al₂)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Ferro-fluoro-pedrizite	NaLi₂(Fe²⁺₂Al₂Li)[Si₈O₂₂]F₂	Mon. 2/m : B2/m
9.DE.25	Potassic-ferri-leakeite	KNa₂(Mg₂Fe³⁺₂Li)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Potassic-magnesio-fluoro-arfvedsonite	KNa₂(Mg₄Fe³⁺)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Mangani-obertiite	NaNa₂(Mg₃Mn³⁺Ti⁴⁺)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Scandio-fluoro-eckermannite	NaNa₂(Mg₄Sc)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	'Ferro-eckermannite'	NaNa₂(Fe²⁺₄Al)Si₈O₂₂(OH)₂	Mon.
9.DE.25	Ferro-ferri-pedrizite	NaLi₂(Fe²⁺₂Fe³⁺₂Li)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Pedrizite'	NaLi₂(LiMg₂Al₂)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Ferro-pedrizite	NaLi₂(Fe²⁺₂Al₂Li)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	Potassic-mangani-leakeite	KNa₂(Mg₂Mn³⁺₂Li)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Clino-fluoro-holmquistite'	◻{Li₂}{Mg₃Al₂}(Si₈O₂₂)F₂
9.DE.25	Ferro-ferri-obertiite	NaNa₂(Fe²⁺₃Fe³⁺Ti)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	Magnesio-riebeckite	◻Na₂(Mg₃Fe³⁺₂)(Si₈O₂₂)(OH)₂	Mon.
9.DE.25	Potassic-magnesio-arfvedsonite	KNa₂(Mg₄Fe³⁺)(Si₈O₂₂)(OH)₂	Mon. 2/m : B2/m
9.DE.25	Fluoro-nybøite	NaNa₂(Mg₃Al₂)(AlSi₇O₂₂)(F,OH)₂	Mon. 2/m : B2/m
9.DE.25	Mangano-ferri-eckermannite	NaNa₂(Mn²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Fluoro-glaucophane'	◻[Na₂][Mg₃Al₂]Si₈O₂₂F₂
9.DE.25	Fluoro-riebeckite	◻Na₂(Fe²⁺₃Fe³⁺₂)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	Magnesio-fluoro-riebeckite	◻Na₂(Mg₃Fe³⁺₂)(Si₈O₂₂)F₂	Mon. 2/m : B2/m
9.DE.25	'Fluoro-eckermannite'	NaNa₂(Mg₄Al}Si₈O₂₂F₂
9.DE.25	'Ferro-fluoro-eckermannite'	NaNa₂(Fe²⁺₄Al}Si₈O₂₂F₂
9.DE.25	'Fluoro-arfvedsonite'	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂F₂
9.DE.25	'Ferri-fluoro-nybøite'	NaNa₂(Mg₃Fe³⁺₂)(AlSi₇O₂₂)F₂
9.DE.25	'Ferro-ferri-fluoro-nybøite'	NaNa₂(Fe²⁺₃Fe³⁺₂)(AlSi₇O₂₂)F₂
9.DE.25	Ferro-glaucophane	◻Na₂(Fe²⁺₃Al₂)Si₈O₂₂(OH)₂	Mon. 2/m : B2/m
9.DE.25	'Ferro-fluoro-nybøite'	NaNa₂(Fe²⁺₃Al₂)(AlSi₇O₂₂)F₂
9.DE.25	Mangani-dellaventuraite	NaNa₂(MgMn³⁺₂Ti⁴⁺Li)Si₈O₂₂O₂	Mon. 2/m : B2/m
9.DE.25	'Ferro-leakeite'	NaNa₂(Fe²⁺₂Al₂Li)(Si₈O₂₂)(OH)₂
9.DE.25	'Leakeite'	NaNa₂(Mg₂Al₂Li)(Si₈O₂₂)(OH)₂
9.DE.25	'Potassic-leakeite'	KNa₂(Mg₂Al₂Li)(Si₈O₂₂)(OH)₂
9.DE.25	'Ferri-fluoro-pedrizite'	NaLi₂(LiMg₂Fe³⁺₂)(Si₈O₂₂)F₂
9.DE.25	'Ferro-ferri-fluoro-pedrizite'	NaLi₂(LiFe²⁺₂Fe³⁺₂)(Si₈O₂₂)F₂
9.DE.25	'Ferro-nybøite'	NaNa₂(Fe²⁺₃Al₂)(AlSi₇O₂₂)(OH)₂	Mon.
9.DE.25	'Clino-ferro-ferri-fluoro-holmquistite'	◻{Li₂}{Fe²⁺₃Fe³⁺₂}(Si₈O₂₂)F₂
9.DE.25	Mangano-mangani-ungarettiite	NaNa₂(Mn²⁺₂Mn³⁺₃)(Si₈O₂₂)O₂	Mon. 2/m : B2/m
9.DE.25	'Clino-ferri-fluoro-holmquistite'	◻{Li₂}{Mg₃Fe³⁺₂}(Si₈O₂₂)F₂
9.DE.25	'Clino-ferro-fluoro-holmquistite'	◻{Li₂}{Fe²⁺₃Al₂}(Si₈O₂₂)F₂

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.

Internet Links for Magnesio-arfvedsoniteHide

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References for Magnesio-arfvedsoniteHide

Reference List:

Milton, Charles, Ingram, Blanche, Breger, and Irving (1974) Authigenic magnesioarfvedsonite from the Green River Formation, Duchesne County, Utah. American Mineralogist, 59 (7-8) 830-836

Mian, I., Le Bas, M. J. (1986) Sodic amphiboles in fenites from the Loe Shilman carbonatite complex, NW Pakistan. Mineralogical Magazine, 50 (356) 187-197 doi:10.1180/minmag.1986.050.356.01 (solid solution with magnesio-riebeckite)

Mandarino, Joseph A. (1998) The Second List of Additions and Corrections to the Glossary of Mineral Species (1995) - The Amphibole Group. The Mineralogical Record, 29 (3) 169-174

(2001) Magnesio-arfvedsonite. Handbook of Mineralogy. Mineralogical Society of America

Hawthorne, F. C., Oberti, R. (2006) On the classification of amphiboles. The Canadian Mineralogist, 44 (1) 1-21 doi:10.2113/gscanmin.44.1.1

Dyulgerov, Momchil M., Platevoet, Bernard (2006) Unusual Ti and Zr aegirine-augite and potassic magnesio-arfvedsonite in the peralkaline potassic oversaturated Buhovo-Seslavtzi complex, Bulgaria. European Journal of Mineralogy, 18 (1) 127-138 doi:10.1127/0935-1221/2006/0018-0127

Hawthorne, F. C., Oberti, R., Zanetti, A., Nayak, V.K. (2008) The crystal chemistry of alkali amphiboles from the Kajlidongri Manganese Mine, India. The Canadian Mineralogist, 46 (2) 455-466 doi:10.3749/canmin.46.2.455

Hawthorne, F. C., Oberti, R., Harlow, G. E., Maresch, W. V., Martin, R. F., Schumacher, J. C., Welch, M. D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist, 97 (11) 2031-2048 doi:10.2138/am.2012.4276

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2014) New minerals and nomenclature modifications approved in 2014, CNMNC Newsletter No 20. Mineralogical Magazine, 78 (3) 549-558 doi:10.1180/minmag.2014.078.3.05

Oberti, Roberta, Boiocchi, Massimo, Hawthorne, Frank C., Ball, Neil A., Harlow, George E. (2015) Magnesio-arfvedsonite from Jade Mine Tract, Myanmar: mineral description and crystal chemistry. Mineralogical Magazine, 79 (2) 253-260 doi:10.1180/minmag.2015.079.2.04

Localities for Magnesio-arfvedsoniteHide

Showing 141 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

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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.


Angola
Namibe Province Camacuio ⓘ Nejoio Complex	Rodrigues +1 other reference

Antarctica
East Antarctica Enderby Land Napier Complex Tula Mountains Amundsen Bay ⓘ Priestley Peak	Sheraton et al. (1980)
Mac Robertson Land Prince Charles Mountains ⓘ Mount Bayliss	Sheraton et al. (1980)

Argentina
Santiago del Estero Province Ojo de Agua Department ⓘ Jasimampa prospect	Franchini et al. (2005)

Australia
New South Wales Forbes Co. Grenfell ⓘ Hoskins mine
Northern Territory Central Desert Region Alcoota Station ⓘ Mud Tank Vermiculite Mine	Currie et al. (1992)
ⓘ Mud Tank Zircon Field	Black et al. (1978) +3 other references
Tasmania Huon Valley municipality Huon-Channel region Cygnet district ⓘ Langdons Point	Bottrill (2021)
Western Australia Wyndham-East Kimberley Shire Bow River Station ⓘ Bow Hill dikes	Jaques et al. (1986) +1 other reference

Austria
Lower Austria Waidhofen an der Thaya District Karlstein an der Thaya ⓘ Karlstein dike	Nemec (1988)
Waidhofen an der Thaya ⓘ Jarolden dike	Nemec (1988)
ⓘ Waldviertel	[var: Anophorite] Exel (1993)
Salzburg Tamsweg District Tweng ⓘ Fuchs Alp - Fuchs lake area	Kolitsch et al. (2021)

Brazil
Minas Gerais Araxá ⓘ Barreiro	Traversa et al. (2001)
ⓘ Poços de Caldas alkaline complex	Guarino et al. (2021)

Bulgaria
Sofia City Province Stolichna Municipality Buhovo ⓘ Buhovo-Seslavtsi pluton	Lilov et al. (1968) +3 other references
Sofia Province Svoge Municipality Svidnya ⓘ Svidnya Complex	Grozdanov +4 other references
Stara Zagora Province Kazanlak Municality Shipka ⓘ Shipka Outcrops	Dyulgerov +2 other references

Canada
British Columbia Omineca Mining Division Williston Lake ⓘ Aley Deposit (Aley Creek Carbonatite Complex)	Taseko
Ontario Algoma District McMurray Township ⓘ Firesand Creek Carbonatite Complex	Sage (1988)
Thunder Bay District O'Meara Township ⓘ Chipman Lake carbonatite	Platt & Wooley (1990)
Québec Abitibi-Témiscamingue Témiscamingue RCM Les Lacs-du-Témiscamingue ⓘ Kipawa alkaline complex	Frank Craig
Montérégie La Vallée-du-Richelieu RCM Mont Saint-Hilaire ⓘ Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH)	Grice (1989) +1 other reference
Outaouais Les Collines-de-l'Outaouais RCM ⓘ Cantley	May 1984 +4 other references
Chelsea ⓘ Meech Lake carbonatite	Hogarth (2016)

Cape Verde
Barlavento Islands ⓘ Boa Vista Island	Figueiredo et al. (1989) +9 other references

China
Inner Mongolia Baotou City Bayan Obo mining district ⓘ Bayan Obo deposit	Smith (2006) +1 other reference
ⓘ Main pit	Xue et al. (2026)
Jiangsu Lianyungang Donghai Co. ⓘ ~~Qinglong hills (Qinglongshan)~~	Rong Yan and Jianjun Yang (2013)
Liaoning Dandong Kuandian County ⓘ Saima U-REE deposit	Yiming Zhao and Daxin Li (2003)
ⓘ Saima complex	Ma et al. (2023)
Shandong Qingdao Laoshan District ⓘ Laoshan Granitic Complex	Wang et al. (2000) +2 other references
Sichuan Liangshan Yi ⓘ Maoniuping carbonatite complex	Huang et al. (2008)
Mianning County ⓘ Muluozhai REE deposit (Muluo REE deposit)	Li et al. (2025)
ⓘ Diaoloushan camp	Li et al. (2025)
Xinjiang Ili Kazakh Autonomous Prefecture Altay Prefecture (Aletai Prefecture) ⓘ Ulungur river peralkaline granites	Han et al. (1997)
Zhejiang Wenzhou Ouhai District ⓘ Qingtian Intrusion	Qiu et al. (2004) +1 other reference

Czech Republic
Vysočina Region Třebíč District Šebkovice ⓘ Šebkovice ultrapotassic lamproite dyke	KRMÍČEK L. 2010: Pre-Mesozoic lamprophyres and lamproites of the Bohemian Massif (Czech Republic, Poland, Germany, Austria)
ⓘ Třebíč	Nemec (1988)

Denmark
ⓘ North Jutland Region	Pedersen et al. (1975) +1 other reference

Europe
ⓘ Balkan Mountains	www.bgd.bg/summanual_2003_2.htm.

Finland
Lapland Savukoski Tulppio ⓘ Sokli carbonatite complex	Vartiainen et al. (1976)
North Karelia Juuka ⓘ Panjavaara carbonate veins and dikes	Torppa +1 other reference

Germany
Baden-Württemberg Karlsruhe Region Neckar-Odenwald-Kreis Waldbrunn Waldkatzenbach ⓘ Katzenbuckel	Lippolt et al. (1976) +4 other references
ⓘ Michelsberg Quarry	[var: Anophorite] Freudenberg (1908)
Rhineland-Palatinate Mayen-Koblenz Pellenz Nickenich ⓘ Nickenicher Weinberg ?	Künzel et al. (2011)

Greece
Attica East Attica Lavreotiki Plaka ⓘ Plaka mines	Schusser et al. (2022)

Greenland
Qeqqata Isortoq Fjord (Søndre Isortoq) Sarfartoq region ⓘ Sarfartoq carbonatite complex	Petersen et al. (1984)
Sermersooq Kangerlussuaq Fjord ⓘ Gardiner Complex	Petersen et al. (1985)
ⓘ Tikiusaaq carbonatite-aillikite	Tappe et al. (2009)

India
Madhya Pradesh Jabalpur Division Balaghat District Tirodi ⓘ South Tirodi Mine	V.K. Nayak and K.J. Neuvonen (1964)
Jhabua District ⓘ Kajlidongri Mine	Leake et al. (1981) +1 other reference
Rajasthan Jodhpur Division Sirohi district ⓘ Mundwara	Subrahmanyam et al. (1977) +3 other references
Udaipur Division Udaipur District ⓘ Newania carbonatite-fenite complex	Doroshkevich et al. (2009) +2 other references
Telangana Nalgonda District ⓘ Vattikod lamproite	Talukdar et al. (2018)

Italy
Liguria La Spezia Province Borghetto di Vara ⓘ Cerchiara Mine
Piedmont Cuneo Province Canosio Vallone della Valletta ⓘ Valletta Mine	Cámara et al. (2017)

Japan
Ehime Prefecture Shikokuchuo City Doi ⓘ Irazuyama (Iratsuyama)	Forrest Cureton specimens +1 other reference
Fukushima Prefecture Iwaki City ⓘ Gozaisho Mine	Pavel M. Kartashov analytical data (2012)
Iwate Prefecture Kunohe-gun Noda ⓘ Noda-Tamagawa mine	Excalibur Mineral Company specimen +3 other references
Nagano Prefecture Azumino City ⓘ Mount Jonen	ASAKAWA et al. (1980)
Niigata Prefecture Itoigawa City ⓘ Yamanobo	Suzuki Y and Ohki Y (2019) +1 other reference
Wakayama Prefecture Iwade city Afuzu-mura ⓘ Iimori mine	BANNO et al. (2021)

Jersey
ⓘ St Helier	Wagner et al. (1985)
ⓘ Jersey minette outcrops	Wagner et al. (1985)

Kenya
Homa Bay County ⓘ Homa Mountain complex	Sutherland (1969)
Ruri complex ⓘ North Ruri	Sutherland (1969)

Madagascar
Amoron'i Mania Manandriana District Andakatany ⓘ Ambatoarina	Lacroix (1910) +2 other references
ⓘ ~~Ambatoarina area~~	Lacroix (1922) +1 other reference
ⓘ Andakatany Deposit	Royal Museum for Central Africa
Bongolava Tsiroanomandidy District Ambatolampy Commune ⓘ Ambohiby Massif	Mukosi (2012)

Malawi
Southern Region Machinga ⓘ Mongolowe-Chaone-Chikala Complexes	Garson (1960) +8 other references

Myanmar (TL)
Kachin State Mohnyin District Hpakant Township (Hpakan; Phakant; Phakan) ⓘ Hpakant-Tawmaw Jade Tract (TL)	Williams et al. (2014) +1 other reference
Hpakant (Hpakan; Phakant; Phakan) ⓘ Phakant Mine	Jing Wang et al. (2013)
ⓘ Tawmaw (Tawhmaw; Taw Maw)	[var: Chromium-bearing Magnesio-arfvedsonite] Pavel M. Kartashov analytical data

Namibia
Kunene Region Epupa Swartbooisdrif Dikes ⓘ Carbonatite outcrops	von Seckendorff et al. (2000)

New Zealand
West Coast Region Westland District Burke River ⓘ Cowan Creek	Cooper (1996)

North Macedonia
Prilep Municipality ⓘ Alinci	Färber (n.d.)

Norway
Telemark Nome ⓘ Holla	Kresten et al. (1986)
ⓘ Melteig Farm	Kresten et al. (1986)
Troms og Finnmark Tromsø Kvaløya ⓘ Kvaløya ultrapotassic dike	Kullerud et al. (2011) +1 other reference

Pakistan
Khyber Pakhtunkhwa Province Khyber District ⓘ Loe Shilman Carbonatite	Jan et al. (1981) +3 other references
Malakand District ⓘ Sillai Patti Carbonatite	Le Bas et al. (1987) +1 other reference

Poland
Lower Silesian Voivodeship Kłodzko County Gmina Kłodzko ⓘ Rogówek	...
Gmina Stronie Śląskie ⓘ Stójków Dike	Wierzchołowski (Middle Sudetes)
Podlaskie Voivodeship ⓘ Tajno alkaline-carbonatite massif	Grabarczyk et al. (2022)

Portugal
Bragança Macedo de Cavaleiros Bornes ⓘ Macedo de Cavaleiros Volcanic area	Ribeiro (1987)

Russia
Aldan Shield Chara and Tokko Rivers Confluence Murunskii Massif Ditmar stream ⓘ Tausonitovaya Gorka	Pavel M. Kartashov (n.d.) +1 other reference
Chelyabinsk Oblast Vishnevye Mountains ⓘ Buldym Lake	Nedosekova (2007) +1 other reference
Dolgaya Mt. ⓘ Vein no. 35	Попова et al. (2019)
ⓘ Karavai Mt	webmineral.ru (2016)
Murmansk Oblast ⓘ Eveslogchorr Mt	Konopleva et al. (2008)
Kovdorsky District Kovdor Massif ⓘ Kovdor Phlogopite mine	I. V. Pekov et al. (2006)
ⓘ Kukisvumchorr Mt	Pekov et al. (2004)
ⓘ Marchenko Peak	Konopleva et al. (2008)
ⓘ Northeast slope	Pavel M. Kartashov (n.d.)
ⓘ Lovozero Massif	Mikhailova et al. (2022)
ⓘ Mt. Kuetnyuchorr	Mokrushina et al. (2023)
Lovozersky District ⓘ Alluaiv Mountain	maurice.strahlen.org (2003) +1 other reference
Umbozero mine ⓘ Shkatulka pegmatite	Pavel M. Kartashov (n.d.)
ⓘ Umbozero North quarry	Pavel M. Kartashov (n.d.)
ⓘ Bolshoi Punkaruaiv Mountain	Pekov et al. (2001)
Karnasurt Mountain ⓘ Yubileinaya pegmatite
ⓘ Parguaiv Mountain	Mikhailova et al. (2025)
Seidozero Lake ⓘ Lepkhe-Nel'm Mt	Pekov (2003)
ⓘ Pegmatite No. 47	Semenov E.I. (1972)
ⓘ Selsurt Mountain	[AmMin 85:1562] +1 other reference
ⓘ Sengischorr Mountain	Pavel M. Kartashov (n.d.)
Rypnetsk Mountain ⓘ Kuropachii pass	Pavel M. Kartashov (n.d.)
Yukspor Mountain Hackman Valley ⓘ Lovchorrite Mine	Pekov et al. (2003)
ⓘ Material'naya Adit	Pavel M. Kartashov (n.d.)
ⓘ Yum'echorr Mt (Yumjechorr)	Pavel M. Kartashov (n.d.)
Sakha Aldan Inagli Massif ⓘ Inagli chrome-diopside deposit	Pekov (1998)
Mirninsky District Daldyn ⓘ Udachnaya open-pit mine (Udachnaya-Vostochnaya pipe; Udachnaya pipe)	Rezvukhin +3 other references

Saudi Arabia
Medina Region ⓘ Abu Safiyah Complex	Kemp (1981)

South Africa
North West Bojanala Platinum District Municipality Moses Kotane Local Municipality ⓘ Pilanesberg Alkaline Ring Complex	R. Liferovich -L. Horváth p.c. 2004
Northern Cape John Taolo Gaetsewe District Municipality Joe Morolong Local Municipality ⓘ Wessels Mine	Pohl et al. (1991)

Spain
Canary Islands Santa Cruz de Tenerife Province ⓘ Tenerife	Borley et al. (1971) +9 other references

Sweden
Jönköping County Jönköping Gränna ⓘ Norra Kärr	Collection of Naturhistoriska Riksmuseet i Stockholm (The Natural History Museum) +1 other reference
ⓘ Jinshajiangite outcrop	Holtstam (1998)
Västernorrland County Sundsvall ⓘ Alnö Complex	Sandström et al. (2010)

Uganda
Eastern Region Tororo ⓘ Tororo Carbonatite Complex	Sutherland (1969)
Northern Region Kotido ⓘ Toror complex	Sutherland (1969)

UK
England Cornwall Falmouth ⓘ Pendennis Head	Woolley (2019)
Scotland Argyll and Bute Isle of Islay ⓘ Cnoc Rhaonastil Intrusion	an example from the British Tertiary Igneous Province. Earth and Environmental Science Transactions of The Royal Society of Edinburgh (4) +4 other references
Highland North， West and Central Sutherland Assynt ⓘ Loch Borralan Complex	Shand (1910) +17 other references

USA
Arkansas Hot Spring County Magnet Cove ⓘ Diamond Jo Quarry	Henry Barwood - unpublished (2010)
ⓘ Jones Mill Quarry	Henry Barwood - unpublished (2010)
California Humboldt County ⓘ Coyote Peak	Pemberton (1983) +1 other reference
Colorado Gunnison County White Earth Mining District (Powderhorn Mining District) ⓘ Iron Hill deposit	Eckel et al. (1997)
ⓘ Green River Formation	Milton (1977)
Montana Lincoln County Libby Mining District (Snowshoe Mining District) Libby ⓘ Rainy Creek Mine (W. R. Grace Mine)	Meeker et al. (2003)
Meagher County ⓘ Gordon Butte	Mitchell (2000) +1 other reference
Utah Duchesne County ⓘ Avintaquin Canyon	Milton et al. (1974)
ⓘ Conoco Duchesne 688-1	Milton et al. (1974)
ⓘ Green River Formation outcrops	Bullock (1981)

Vietnam
Lai Châu Province Phong Tho District Mt Fansipan Nâm Nâm Xe REE deposit ⓘ South Nâm Nâm Xe carbonatite	THUY et al. (2017)

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Magnesio-arfvedsonite

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