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Julgoldite-(Fe3+)

A valid IMA mineral species

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Julgoldite-(Fe3+)

Jalgaon District, Nashik Division, Maharashtra, India

Julgoldite-(Fe3+), etc.

Jalgaon District, Nashik Division, Maharashtra, India

Julgoldite-(Fe3+)

Harstigen Mine, Pajsberg, Persberg ore district, Filipstad, Värmland County, Sweden

Julgoldite-(Fe3+)

Jalgaon District, Nashik Division, Maharashtra, India

Julgoldite-(Fe3+), etc.

Jalgaon District, Nashik Division, Maharashtra, India

Julgoldite-(Fe3+)

Harstigen Mine, Pajsberg, Persberg ore district, Filipstad, Värmland County, Sweden

Julgoldite-(Fe3+)

Jalgaon District, Nashik Division, Maharashtra, India

Julgoldite-(Fe3+), etc.

Jalgaon District, Nashik Division, Maharashtra, India

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About Julgoldite-(Fe3+)Hide

Julian R. Goldsmith

Formula:

Ca₂Fe³⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂O

Colour:

Black

Lustre:

Sub-Metallic

Hardness:

4½

Specific Gravity:

3.56 - 3.60

Crystal System:

Monoclinic

Member of:

Julgoldite Subgroup > Pumpellyite Group

Name:

Named in 1971 by Moore in honor of Julian Royce Goldsmith (26 February 1918, Chicago, Illinois, USA - 23 January 1999, USA), geochemist at the University of Chicago. He was an expert on feldspars and carbonates. He also served as president of the Geochemical Society, the Mineralogical Society of America, and the Geological Society of America.

Type Locality:

ⓘ Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Pumpellyite Group

The Fe-rich Karadag julgoldite-(Fe3+) bears some molecular water.

Unique IdentifiersHide

Mindat ID:

7125

Long-form identifier:

mindat:1:1:7125:9

Similar NamesHide

Julgoldite	A synonym of Julgoldite Subgroup
Julgoldite-(Fe2+)	A valid IMA mineral species	Ca₂Fe²⁺Fe₂³⁺[Si₂O₆OH][SiO₄](OH)₂(OH)
Julgoldite-(Fe2+)-Pumpellyite-(Fe2+) Series	A solid-solution series between two end-member minerals
Julgoldite-(Fe2+)-Pumpellyite-(Mg) Series	A solid-solution series between two end-member minerals
Julgoldite-(Mg)	A valid IMA mineral species	Ca₂MgFe₂³⁺[Si₂O₆OH][SiO₄](OH)₂(OH)

IMA Classification of Julgoldite-(Fe3+)Hide

IMA status:

Approved

IMA Formula:

Ca₂Fe³⁺Fe³⁺₂(Si₂O₇)(SiO₄)O(OH) · H₂O

Approval year:

1966

First published:

1971

Type description reference:

Moore, Paul B (1971) Julgoldite, the Fe+2−Fe+3 dominant pumpellyite. Lithos, 4 (2) 93-99 doi:10.1016/0024-4937(71)90101-0

Classification of Julgoldite-(Fe3+)Hide

Strunz-mindat (2026):

9.BG.20

9 : SILICATES (Germanates)
B : Sorosilicates
G : Sorosilicates with mixed SiO₄ and Si₂O₇ groups; cations in octahedral [6] and greater coordination

Dana 8th ed.:

58.2.2.2

58 : SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
2 : Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)

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
Jul-Fe3+	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Jul	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Julgoldite-(Fe3+)Hide

Lustre:

Sub-Metallic

Colour:

Black

Streak:

Greenish-olive with a bluish tinge

Hardness:

4½ on Mohs scale

Cleavage:

Distinct/Good
good {100}

Density:

3.56 - 3.60 g/cm³ (Measured) 3.60 g/cm³ (Calculated)

Optical Data of Julgoldite-(Fe3+)Hide

Type:

Biaxial (-)

RI values:

n_α = 1.776 n_β = 1.814

2V:

Measured: 50° to 70°, Calculated: 73°

Surface Relief:

Moderate

Pleochroism:

Strong

Comments:

X = pale brown, Y = pale brownish-green, Z = deep emerald-green

Chemistry of Julgoldite-(Fe3+)Hide

Mindat Formula:

Ca₂Fe³⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂O

Element Weights:

Element	% weight
O	40.073 %
Fe	29.973 %
Si	15.074 %
Ca	14.340 %
H	0.541 %

Calculated from ideal end-member formula.

Elements listed:

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

Crystallography of Julgoldite-(Fe3+)Hide

Crystal System:

Monoclinic

Cell Parameters:

a = 8.935(15) Å, b = 6.065(20) Å, c = 19.39(2) Å
β = 97.4°

Ratio:

a:b:c = 1.473 : 1 : 3.197

Unit Cell V:

1,042.01 Å³ (Calculated from Unit Cell)

Twinning:

twinned on {001}

Comment:

Space group A2/m

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)
0014461	Julgoldite-(Fe3+)	Allmann R, Donnay G (1973) The crystal structure of julgoldite Mineralogical Magazine 39 271-281		1973	Langban, Sweden	0	293
0003146	Julgoldite-(Fe3+)	Artioli G, Geiger C A, Dapiaggi M (2003) The crystal chemistry of julgoldite-Fe3+ from Bombay, India, studied using synchrotron X-ray powder diffraction and 57Fe Mossbauer spectroscopy American Mineralogist 88 1084-1090		2003		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Julgoldite-(Fe3+)'
loop_
_publ_author_name
'Allmann R'
'Donnay G'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 39 
_journal_year 1973
_journal_page_first 271
_journal_page_last 281
_publ_section_title
;
 The crystal structure of julgoldite
;
_database_code_amcsd 0014461
_chemical_compound_source 'Langban, Sweden'
_chemical_formula_sum 'Ca2 Fe3 Si3 O14 H2'
_cell_length_a 8.922
_cell_length_b 6.081
_cell_length_c 19.432
_cell_angle_alpha 90
_cell_angle_beta 97.60
_cell_angle_gamma 90
_cell_volume 1045.016
_exptl_crystal_density_diffrn      3.546
_symmetry_space_group_name_H-M 'A 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '-x,y,-z'
  '-x,1/2+y,1/2-z'
  'x,-y,z'
  'x,1/2-y,1/2+z'
  '-x,-y,-z'
  '-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ca1   0.25540   0.50000   0.33970   1.00000
Ca2   0.19630   0.50000   0.15630   1.00000
Fe1   0.50000   0.25000   0.25000   1.00000
Fe2   0.25430   0.24650   0.49550   1.00000
Si1   0.05060   0.00000   0.09360   1.00000
Si2   0.16230   0.00000   0.24780   1.00000
Si3   0.46500   0.00000   0.40130   1.00000
O1   0.13530   0.22140   0.07550   1.00000
O2   0.25820   0.22920   0.24730   1.00000
O3   0.36740   0.21920   0.41350   1.00000
O4   0.12830   0.50000   0.44280   1.00000
O5   0.12340   0.00000   0.45560   0.50000
O-H5   0.12340   0.00000   0.45560   0.50000
O6   0.37170   0.50000   0.04530   1.00000
O7   0.37570   0.00000   0.03220   0.50000
O-H7   0.37570   0.00000   0.03220   0.50000
O8   0.03150   0.00000   0.17800   1.00000
O9   0.47280   0.50000   0.17460   1.00000
O10   0.06150   0.00000   0.31280   0.50000
O-H10   0.06150   0.00000   0.31280   0.50000
O11   0.49740   0.00000   0.18350   0.50000
O-H11   0.49740   0.00000   0.18350   0.50000
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
Ca1 0.00808 0.00809 0.00376 0.00000 0.00095 0.00000
Ca2 0.01656 0.00836 0.00545 0.00000 0.00000 0.00000
Fe1 0.01355 0.00937 0.00658 0.00035 0.00147 0.00059
Fe2 0.01010 0.00796 0.00432 0.00049 0.00121 0.00047
Si1 0.00582 0.00620 0.00188 0.00000 -0.00069 0.00000
Si2 0.00836 0.00493 0.00226 0.00000 -0.00069 0.00000
Si3 0.00618 0.00620 0.00169 0.00000 0.00086 0.00000
O1 0.01442 0.00836 0.00583 -0.00240 0.00095 -0.00202
O2 0.01252 0.00734 0.00507 0.00074 -0.00060 -0.00136
O3 0.01494 0.01062 0.00639 0.00202 0.00311 0.00172
O4 0.00808 0.00671 0.00376 0.00000 0.00095 0.00000
O5 0.01569 0.01317 0.00808 0.00000 0.00035 0.00000
O-H5 0.01569 0.01317 0.00808 0.00000 0.00035 0.00000
O6 0.01189 0.00480 0.00338 0.00000 0.00060 0.00000
O7 0.01593 0.01025 0.01316 0.00000 0.00302 0.00000
O-H7 0.01593 0.01025 0.01316 0.00000 0.00302 0.00000
O8 0.01212 0.01354 0.00357 0.00000 -0.00069 0.00000
O9 0.01010 0.00924 0.00357 0.00000 0.00173 0.00000
O10 0.01668 0.01519 0.00883 0.00000 0.00250 0.00000
O-H10 0.01668 0.01519 0.00883 0.00000 0.00250 0.00000
O11 0.01569 0.01102 0.00695 0.00000 0.00285 0.00000
O-H11 0.01569 0.01102 0.00695 0.00000 0.00285 0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
4.80 Å	(7)
3.84 Å	(8)
2.95 Å	(10)
2.78 Å	(6)
2.57 Å	(7)
2.385 Å	(5)
1.62 Å	(5)
1.52 Å	(5)

Type Occurrence of Julgoldite-(Fe3+)Hide

Type Locality:

ⓘ Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden

Associated Minerals at Type Locality:

Apophyllite Group

Reference:

Moore, Paul B (1971) Julgoldite, the Fe+2−Fe+3 dominant pumpellyite. Lithos, 4 (2) 93-99 doi:10.1016/0024-4937(71)90101-0

Synonyms of Julgoldite-(Fe3+)Hide

IMA1966-033

Other Language Names for Julgoldite-(Fe3+)Hide

Dutch:Julgoldiet-(Fe3+)

German:Julgoldit-(Fe3+)

Russian:Джулголдит-(Fe3+)

Relationship of Julgoldite-(Fe3+) to other SpeciesHide

Member of:

Julgoldite Subgroup > Pumpellyite Group

Other Members of Julgoldite Subgroup:

Julgoldite-(Fe2+)	Ca₂Fe²⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
Julgoldite-(Mg)	Ca₂MgFe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.

Common AssociatesHide

Associations Based on Photo Data:

6 photos of Julgoldite-(Fe3+) associated with Stilbite-Ca	NaCa₄(Si₂₇Al₉)O₇₂ · 28H₂O
4 photos of Julgoldite-(Fe3+) associated with 'Chalcedony'	SiO₂
3 photos of Julgoldite-(Fe3+) associated with Fluorapophyllite-(K)	KCa₄(Si₈O₂₀)(F,OH) · 8H₂O
2 photos of Julgoldite-(Fe3+) associated with Celadonite	K(MgFe³⁺◻)(Si₄O₁₀)(OH)₂
2 photos of Julgoldite-(Fe3+) associated with Fluorite	CaF₂
2 photos of Julgoldite-(Fe3+) associated with Quartz	SiO₂
1 photo of Julgoldite-(Fe3+) associated with Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
1 photo of Julgoldite-(Fe3+) associated with Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
1 photo of Julgoldite-(Fe3+) associated with Ilvaite	CaFe³⁺Fe²⁺₂(Si₂O₇)O(OH)

Related Minerals - Strunz-mindat Grouping Hide

9.BG.	Alumovesuvianite	Ca₁₉AlAl₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.	Alnaperbøeite-(Ce)	Ca(Ce_2.5Na_0.5)(AlAl₂Al)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.	Zilbermintsite-(La)	(CaLa₅)(Fe³⁺Al₃Fe²⁺)[Si₂O₇][SiO₄]₅O(OH)₃	Mon. 2/m : P2₁/m
9.BG.	Heflikite	(CaCa)(AlAlSc)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.	Magnesiovesuvianite	Ca₁₉MgAl₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/m : P4/n
9.BG.	Zoisite-(Pb)	(CaPb)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Orth. mmm(2/m2/m2/m) : Pnma
9.BG.	Shuiskite-(Cr)	Ca₂Cr³⁺Cr³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.	Radekškodaite Group
9.BG.05	Dissakisite-(La)	(CaLa)(AlAlMg)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Manganiandrosite-(Ce)	(Mn²⁺Ce)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Dissakisite-(Ce)	(CaCe)(AlAlMg)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Sm)	(CaSm)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Hancockite	(CaPb)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Dollaseite-(Ce)	(CaCe)(MgAlMg)F[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a v	'Unnamed (Ga-analogue of Epidote)'	(CaCa)(AlAlGa³⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05a	Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Epidote-(Sr)	(CaSr)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Vanadoandrosite-(Ce)	(Mn²⁺Ce)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Vanadoallanite-(La)	(CaLa)(V³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	'Unnamed (Mg-analogue of Ferriallanite-(Ce))'	(CaCe)(Fe³⁺AlMg)O[Si₂O₇][SiO₄](OH)
9.BG.05b	Ferriallanite-(La)	(CaLa)(Fe³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Uedaite-(Ce)	(Mn²⁺Ce)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Tweddillite	(CaSr)(Mn³⁺AlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Åskagenite-(Nd)	(Mn²⁺Nd)(AlAlFe³⁺)O[Si₂O₇][SiO₄]O	Mon. 2/m : P2₁/m
9.BG.05	Piemontite-(Pb)	(CaPb)(AlAlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(La)	(CaLa)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Y)	(CaY)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05a	Piemontite	(CaCa)(AlAlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Akasakaite-(Ce)	(CaCe)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Manganiandrosite-(La)	(Mn²⁺La)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Akasakaite-(La)	(CaLa)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Vanadoakasakaite-(La)	(CaLa)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Khristovite-(Ce)	(CaCe)(MgAlMn²⁺)F[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriakasakaite-(La)	(CaLa)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Ferriandrosite-(La)	(Mn²⁺La)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	'Androsite-(Ce)'	(Mn²⁺Ce)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05	Vielleaureite-(Ce)	Mn²⁺Ce(MgAlMn²⁺)(Si₂O₇)(SiO₄)F(OH)	Mon. 2/m : P2₁/m
9.BG.05	Ferriandrosite-(Ce)	(Mn²⁺Ce)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriallanite-(Ce)	(CaCe)(Fe³⁺AlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	'Unnamed (Mn3+-analogue of Ferriakasakaite-(Ce))'	(CaCe)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05b	Vanadoakasakaite-(Ce)	(CaCe)(V³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Piemontite-(Sr)	(CaSr)(AlAlMn³⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05	Niigataite	(CaSr)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Ferriakasakaite-(Ce)	(CaCe)(Fe³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	Allanite-(Nd)	(CaNd)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.05b	'UM1989-32-SiO:AlCaFeHREE'	(Ca_0.5◻_0.5REE)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
9.BG.05a	Mukhinite	(CaCa)(AlAlV³⁺)O[Si₂O₇][SiO₄](OH)	Mon.
9.BG.05b	Manganiakasakaite-(La)	(CaLa)(Mn³⁺AlMn²⁺)O[Si₂O₇][SiO₄](OH)	Mon. 2/m : P2₁/m
9.BG.10	Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)	Orth. mmm(2/m2/m2/m) : Pnma
9.BG.15	Macfallite	Ca₂Mn³⁺₃(SiO₄)(Si₂O₇)(OH)₃	Mon. 2/m : P2₁/m
9.BG.15	Sursassite	Mn²⁺₂Al₃(SiO₄)(Si₂O₇)(OH)₃	Mon. 2/m : P2₁/m
9.BG.20	Pumpellyite-(Al)	Ca₂AlAl₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m
9.BG.20	Shuiskite-(Mg)	Ca₂MgCr³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Julgoldite-(Fe2+)	Ca₂Fe²⁺Fe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Okhotskite	Ca₂Mn²⁺Mn³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Julgoldite-(Mg)	Ca₂MgFe³⁺₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon.
9.BG.20	Poppiite	Ca₂V³⁺V³⁺₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m : B2/m
9.BG.20	Pumpellyite-(Fe2+)	Ca₂Fe²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Pumpellyite-(Fe3+)	Ca₂Fe³⁺Al₂[Si₂O₆OH][SiO₄](OH)₂O	Mon. 2/m
9.BG.20	Pumpellyite-(Mg)	Ca₂MgAl₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.20	Pumpellyite-(Mn2+)	Ca₂Mn²⁺Al₂[Si₂O₆OH][SiO₄](OH)₂(OH)	Mon. 2/m
9.BG.25	Ganomalite	Pb₉Ca₅Mn(Si₂O₇)₄(SiO₄)O	Hex. 6 : P6
9.BG.25	Wayneburnhamite	Pb₉Ca₆(Si₂O₇)₃(SiO₄)₃	Hex. 6 : P6
9.BG.30	Rustumite	Ca₁₀(Si₂O₇)₂(SiO₄)(OH)₂Cl₂	Mon. 2/m : B2/b
9.BG.35	Modraite	Ca₁₉Fe²⁺Al₄(Al₆Fe²⁺₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Fluorvesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(F,OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Milanriederite	(Ca₁₈[REE])Fe³⁺Al₄(Mg₄Al₄)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Manaevite-(Ce)	(Ca₁₃Ce₄[H₂O]₂)Mg(Al₃Mg)(Mg₃Ti₃Fe³⁺₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₈(H₄O₄)₂]O(OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Hongheite	Ca₁₉Fe²⁺Al₄(Fe³⁺,Mg)₈(◻₄)B[Si₂O₇]₄[(SiO₄)₁₀]O(OH,O)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Wiluite	Ca₁₉MgAl₄(Al,Mg)₈(B,◻)₄◻[Si₂O₇]₄[(SiO₄)₁₀]O(O,OH)₉	Tet. 4/mmm(4/m2/m2/m) : P4/nnc
9.BG.35	Cyprine	Ca₁₉Cu²⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀](OH)(OH)₉	Tet. 4/m : P4/n
9.BG.35	Manganvesuvianite	Ca₁₉Mn³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉	Tet. 4/m : P4/n
9.BG.40	Vyuntspakhkite-(Y)	(Y,Yb)₄Al_2.5-1.5(Si,Al)_1.5-2.5(SiO₄)₄O(OH)₇	Mon.
9.BG.45	Dellaite	Ca₆Si₃O₁₁(OH)₂	Tric.
9.BG.50	Ferriperbøeite-(Ce)	CaCe₃(Fe³⁺Al₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.50	Perbøeite-(La)	CaLa₃(AlAl₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.50	Perbøeite-(Ce)	CaCe₃(AlAl₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.50	Gatelite-(Ce)	CaCe₃(AlAl₂Mg)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/b
9.BG.50	Ferriperbøeite-(La)	CaLa₃(Fe³⁺Al₂Fe²⁺)[Si₂O₇][SiO₄]₃O(OH)₂	Mon. 2/m : P2₁/m
9.BG.55	Västmanlandite-(Ce)	CaCe₃(MgAl₂Mg)[Si₂O₇][SiO₄]₃F(OH)₂	Mon. 2/m : P2₁/m
9.BG.60	Radekškodaite-(La)	(CaLa₅)(Al₄Fe²⁺)[Si₂O₇][SiO₄]₅O(OH)₃	Mon. 2/m : P2₁/m
9.BG.60	Radekškodaite-(Ce)	(CaCe₅)(Al₄Fe²⁺)[Si₂O₇][SiO₄]₅O(OH)₃	Mon. 2/m : P2₁/m

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Internet Links for Julgoldite-(Fe3+)Hide

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References for Julgoldite-(Fe3+)Hide

Reference List:

Moore, P. B. (1967) Eleven new minerals from Langban, Sweden. The Canadian Mineralogist, 9 (2).

Moore, Paul B (1971) Julgoldite, the Fe+2−Fe+3 dominant pumpellyite. Lithos, 4 (2) 93-99 doi:10.1016/0024-4937(71)90101-0

Fleischer, Michael (1971) New Mineral Names. American Mineralogist, 56 (11-12) 2156-2159

Moore, Paul B (1971) Julgoldite, the Fe+2−Fe+3 dominant pumpellyite. Lithos, 4 (2) 93-99 doi:10.1016/0024-4937(71)90101-0

Passaglia, Elio, Gottardi, Glauco (1973) Crystal chemistry and nomenclature of pumpellyites and julgoldites. The Canadian Mineralogist, 12 (3) 219-223

Allmann, R., Donnay, G. (1973) The crystal structure of julgoldite. Mineralogical Magazine: 39: 271-281.

Artioli, G., Geiger, C.A. (1994) The crystal chemistry of pumpellyite: An X-ray Rietveld refinement and 57Fe Mössbauer study. Physics and Chemistry of Minerals, 20 (7). 443-453 doi:10.1007/bf00203213

Artioli, G., Geiger, C.A., Dapiaggi, M. (2003) The crystal chemistry of julgoldite-Fe3+ from Bombay, India, studied using synchrotron X-ray powder diffraction and 57Fe Mössbauer spectroscopy. American Mineralogist, 88 (7) 1084-1090 doi:10.2138/am-2003-0717

Kasatkin, А. V., Zubkova, N.V., Chukanov, N.V., Ksenofontov, D.A., Škoda, R., Tishchenko, A.I., Voronin, M.V., Britvin, S.N., Pekov, I.V. (2021) Необычно богатый железом джулголдит-(Fe ³⁺ ) из Карадагского вулканического массива (Крымский полуостров) [Unusually iron-rich julgoldite-(Fe3+) from the Karadag Volcanic Massif (Crimea Peninsula)]. Zapiski RMO (Proceedings of the Russian Mineralogical Society), CL (6) 96-112 doi:10.31857/s0869605521060034

Localities for Julgoldite-(Fe3+)Hide

Showing 8 localities.

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- 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.


Canada
Québec Outaouais Pontiac RCM Otter Lake ⓘ ~~Yates Mine~~	Schumann et al. (2019)

India
Maharashtra Konkan Division Salsette Island ⓘ Mumbai Suburban District	AmMin 88:1084 (2003)
Nashik Division ⓘ Jalgaon District	www.cs.cmu.edu/~adg/adg-psssimages.html

South Africa
Mpumalanga Nkangala District Municipality Emakhazeni Local Municipality Belfast ⓘ Marlin Norite Quarry	Cairncross et al. (1998)

Sweden (TL)
Värmland County Filipstad Långban Ore District ⓘ Långban Mine (TL)	Moore (1971) +1 other reference
Persberg ore district Pajsberg ⓘ Harstigen Mine ?	Gatedal (n.d.) +1 other reference

Ukraine
Crimea Bakhchysarai Trudolyubovka ⓘ Pervomaiskii quarry	Kasatkin (2019)
Feodosia area ⓘ Karadag Reserve (Kara-Dag)	Kasatkin et al. (2021)

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Julgoldite-(Fe3+)

About Julgoldite-(Fe3+)Hide

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Chemistry of Julgoldite-(Fe3+)Hide

Crystallography of Julgoldite-(Fe3+)Hide

Crystal StructureHide

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Related Minerals - Strunz-mindat GroupingHide

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