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Proshchenkoite-(Y)

A valid IMA mineral species

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Proshchenkoite-(Y)

Tommotskii Massif, Tommot river, Selennyakh range, Sakha, Russia

Proshchenkoite-(Y)

Tommotskii Massif, Tommot river, Selennyakh range, Sakha, Russia

Proshchenkoite-(Y)

Tommotskii Massif, Tommot river, Selennyakh range, Sakha, Russia

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About Proshchenkoite-(Y)Hide

Dr.Evgeniy Grigor'evich Proshchenko

Formula:

Ca(Y,REE,Ca,Na,Mn)₁₅Fe²⁺(P,Si)Si₆B₃O₃₄F₁₄

Colour:

Brownish to reddish

Lustre:

Vitreous, Greasy

Hardness:

5½

Specific Gravity:

4.72

Crystal System:

Trigonal

Member of:

Vicanite Group

Name:

Named in honor of Dr. Evgeniy Grigor'evich Proshchenko (1929-1996), Russian mineralogist, who found the mineral. It was first described in 1966 as a REE-bearing fluorosilicate without a name, but first characterized as a new species by Raade et al. (2009)

Type Locality:

ⓘ Tommotskii Massif, Tommot river, Selennyakh range, Sakha, Russia

Vicanite Group.

Unique IdentifiersHide

Mindat ID:

35971

Long-form identifier:

mindat:1:1:35971:7

IMA Classification of Proshchenkoite-(Y)Hide

IMA status:

Approved

IMA Formula:

(Y,REE,Ca,Na,Mn²⁺)₁₅Fe²⁺Ca(P,Si)Si₆B₃(O,F)₄₈

Approval year:

2008

First published:

2009

Classification of Proshchenkoite-(Y)Hide

Strunz-mindat (2026):

9.AJ.35

9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO₃ triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO₄

Dana 8th ed.:

54.2.5.4

54 : NESOSILICATES Borosilicates and Some Beryllosilicates
2 : Borosilicates and Some Beryllosilicates with B in [4] coordination

Mineral SymbolsHide

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

Symbol	Source	Reference for Standard
Pck-Y	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Proshchenkoite-(Y)Hide

Lustre:

Vitreous, Greasy

Transparency:

Transparent, Translucent

Colour:

Brownish to reddish

Comment:

Orange-yellow in thin fragments.

Streak:

Light brown

Hardness:

5½ on Mohs scale

Hardness Data:

Measured

Tenacity:

Brittle

Cleavage:

None Observed

Fracture:

Irregular/Uneven, Conchoidal

Density:

4.72 g/cm³ (Measured) 4.955 g/cm³ (Calculated)

Comment:

The measured value is thought to be low due to metamictization of the sample.

Chemistry of Proshchenkoite-(Y)Hide

Mindat Formula:

Ca(Y,REE,Ca,Na,Mn)₁₅Fe²⁺(P,Si)Si₆B₃O₃₄F₁₄

Element Weights:

Element	% weight
Y	53.961 %
O	22.011 %
F	10.762 %
Si	6.819 %
Fe	2.260 %
Ca	1.622 %
B	1.312 %
P	1.253 %

Calculated from ideal end-member formula.

Elements listed:

B, Ca, F, Fe, Mn, Na, O, P, Si, Y - search for minerals with similar chemistry

Crystallography of Proshchenkoite-(Y)Hide

Crystal System:

Trigonal

Class (H-M):

3m - Ditrigonal Pyramidal

Space Group:

R3m

Cell Parameters:

a = 10.7527 Å, c = 27.4002 Å

Ratio:

a:c = 1 : 2.548

Unit Cell V:

2,743.59 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)
0018903	Proshchenkoite-(Y)	Raade G, Grice J D, Erambert M, Kristiansson P, Witzke T (2008) Proshchenkoite-(Y) from Russia - a new mineral species in the vicanite group: Descriptive data and crystal structure Mineralogical Magazine 72 1071-1082		2008	Tommot REE-Nb deposit in Yakutia, Russia	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Proshchenkoite-(Y)'
loop_
_publ_author_name
'Raade G'
'Grice J D'
'Erambert M'
'Kristiansson P'
'Witzke T'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 72 
_journal_year 2008
_journal_page_first 1071
_journal_page_last 1082
_publ_section_title
;
 Proshchenkoite-(Y) from Russia - a new mineral species in the vicanite group:
 Descriptive data and crystal structure
;
_database_code_amcsd 0018903
_chemical_compound_source 'Tommot REE-Nb deposit in Yakutia, Russia'
_chemical_formula_sum 'Nd7.53 Y3.72 Ca2.53 Na1.17 Mn.93 Th.09 Pb.03 Fe.83 Ti.02 Si6.26 B3 P.7 As.04 O34 F14'
_cell_length_a 10.7527
_cell_length_b 10.7527
_cell_length_c 27.4002
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 2743.591
_exptl_crystal_density_diffrn      4.927
_symmetry_space_group_name_H-M 'R 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+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
NdM1   0.87001   0.12999   0.68367   0.70000   0.01824
YM1   0.87001   0.12999   0.68367   0.30000   0.01824
NdM2   0.86573   0.13427   0.10116   0.80000   0.02187
CaM2   0.86573   0.13427   0.10116   0.20000   0.02187
NaM3   0.11449   0.88551  -0.09902   0.39000   0.03280
NdM3   0.11449   0.88551  -0.09902   0.33000   0.03280
CaM3   0.11449   0.88551  -0.09902   0.20000   0.03280
YM3   0.11449   0.88551  -0.09902   0.08000   0.03280
NdM4   0.12282   0.87718   0.46990   0.42000   0.02110
MnM4   0.12282   0.87718   0.46990   0.26000   0.02110
YM4   0.12282   0.87718   0.46990   0.16000   0.02110
CaM4   0.12282   0.87718   0.46990   0.11000   0.02110
YM5   0.13824   0.86176   0.22186   0.70000   0.01688
NdM5   0.13824   0.86176   0.22186   0.26000   0.01688
ThM5   0.13824   0.86176   0.22186   0.03000   0.01688
PbM5   0.13824   0.86176   0.22186   0.01000   0.01688
Fe   0.00000   0.00000   0.00000   0.83000   0.02150
Mn   0.00000   0.00000   0.00000   0.15000   0.02150
Ti   0.00000   0.00000   0.00000   0.02000   0.02150
Si1   0.16972   0.83028   0.04725   1.00000   0.02170
Si2   0.82858   0.17142  -0.04047   1.00000   0.01950
B  -0.08210   0.08210   0.29620   1.00000   0.01900
P   0.00000   0.00000   0.78864   0.70000   0.03080
Si   0.00000   0.00000   0.78864   0.26000   0.03080
As   0.00000   0.00000   0.78864   0.04000   0.03080
Ca   0.00000   0.00000   0.57832   1.00000   0.03360
O1   0.08370  -0.08370   0.05250   1.00000   0.02520
O2   0.18670   0.81330  -0.01020   1.00000   0.02720
O3   0.32740  -0.06830   0.07292   1.00000   0.02330
O4  -0.08520   0.08520  -0.05260   1.00000   0.03700
O5   0.81070   0.18930   0.01880   1.00000   0.02180
O6   0.66610   0.08510  -0.06171   1.00000   0.03120
O7   0.07780  -0.07780   0.30690   1.00000   0.02510
O8  -0.09770   0.09770   0.24080   1.00000   0.02350
F9   0.08520  -0.08520   0.14750   1.00000   0.04250
O10   0.00000   0.00000   0.84680   1.00000   0.02800
O11   0.15140   0.11920   0.76800   0.50000   0.04900
F12  -0.08990   0.08990   0.51240   1.00000   0.03330
F13   0.00000   0.00000   0.66330   1.00000   0.02200
F14   0.01560   0.30300   0.84079   1.00000   0.04370
F15   0.00000   0.00000   0.43770   1.00000   0.04700
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
NdM1 0.01697 0.01697 0.01790 0.00637 0.00201 -0.00201
YM1 0.01697 0.01697 0.01790 0.00637 0.00201 -0.00201
NdM2 0.02088 0.02088 0.02280 0.00960 -0.00088 0.00088
CaM2 0.02088 0.02088 0.02280 0.00960 -0.00088 0.00088
NaM3 0.02630 0.02630 0.04800 0.01470 0.01010 -0.01010
NdM3 0.02630 0.02630 0.04800 0.01470 0.01010 -0.01010
CaM3 0.02630 0.02630 0.04800 0.01470 0.01010 -0.01010
YM3 0.02630 0.02630 0.04800 0.01470 0.01010 -0.01010
NdM4 0.01830 0.01830 0.02010 0.00430 0.00190 -0.00190
MnM4 0.01830 0.01830 0.02010 0.00430 0.00190 -0.00190
YM4 0.01830 0.01830 0.02010 0.00430 0.00190 -0.00190
CaM4 0.01830 0.01830 0.02010 0.00430 0.00190 -0.00190
YM5 0.01782 0.01782 0.01700 0.01040 -0.00037 0.00037
NdM5 0.01782 0.01782 0.01700 0.01040 -0.00037 0.00037
ThM5 0.01782 0.01782 0.01700 0.01040 -0.00037 0.00037
PbM5 0.01782 0.01782 0.01700 0.01040 -0.00037 0.00037
Fe 0.02530 0.02530 0.01390 0.01270 0.00000 0.00000
Mn 0.02530 0.02530 0.01390 0.01270 0.00000 0.00000
Ti 0.02530 0.02530 0.01390 0.01270 0.00000 0.00000
Si1 0.01820 0.01820 0.02550 0.00680 0.00040 -0.00040
Si2 0.01670 0.01670 0.02550 0.00860 -0.00060 0.00060
B 0.01000 0.01000 0.02500 -0.00400 -0.00500 0.00500
P 0.03250 0.03250 0.02700 0.01630 0.00000 0.00000
Si 0.03250 0.03250 0.02700 0.01630 0.00000 0.00000
As 0.03250 0.03250 0.02700 0.01630 0.00000 0.00000
Ca 0.03980 0.03980 0.02110 0.01990 0.00000 0.00000
O1 0.01470 0.01470 0.04100 0.00300 -0.00420 0.00420
O2 0.02760 0.02760 0.02700 0.01400 0.00380 -0.00380
O3 0.02370 0.02500 0.02200 0.01330 -0.00030 0.00480
O4 0.02340 0.02340 0.06500 0.01300 0.00200 -0.00200
O5 0.02470 0.02470 0.01600 0.01200 -0.00090 0.00090
O6 0.02000 0.03700 0.02500 0.00500 -0.00800 -0.00800
O7 0.02020 0.02020 0.03100 0.00700 0.00240 -0.00240
O8 0.02230 0.02230 0.01800 0.00500 0.00050 -0.00050
F9 0.04200 0.04200 0.03500 0.01500 -0.00440 0.00440
O10 0.02900 0.02900 0.02700 0.01500 0.00000 0.00000
O11 0.02700 0.05500 0.03300 -0.00500 -0.00300 0.00100
F12 0.02870 0.02870 0.03800 0.01100 0.00740 -0.00740
F13 0.01400 0.01400 0.03800 0.00720 0.00000 0.00000
F14 0.04300 0.05000 0.04200 0.02600 -0.01500 -0.00500
F15 0.05200 0.05200 0.03700 0.02600 0.00000 0.00000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
2.968 Å	(100 broad)
3.144 Å	(77 broad)
3.028 Å	(45 broad)
4.441 Å	(36)
1.782 Å	(32)
1.713 Å	(32)
2.672 Å	(30)

Locality:

Tommotskii Massif, Tommot river, Selennyakh range, Sakha, Russia

Comments:

Tommot REE-Nb deposit, Yakutia, Russia. The data are from Raade et al. (2008).

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of Proshchenkoite-(Y)Hide

Type Locality:

ⓘ Tommotskii Massif, Tommot river, Selennyakh range, Sakha, Russia

General Appearance of Type Material:

Irregular grains up to 0.3 mm.

Place of Conservation of Type Material:

Natural History Museum, University of Oslo, catalogue number 42029.

Geological Setting of Type Material:

In pegmatites of syenitic to alkali granitic composition and also in the enclosing crystalline schists and aegirinized gneisses.

Associated Minerals at Type Locality:

Chevkinite Group	'Fergusonite'	Fluorite	Gadolinite	Molybdenite
Pyrite

Synonyms of Proshchenkoite-(Y)Hide

IMA2008-007

Other Language Names for Proshchenkoite-(Y)Hide

Dutch:Proshchenkoiet-(Y)

German:Proshchenkoit-(Y)

Russian:Прощенкоит-(Y)

Relationship of Proshchenkoite-(Y) to other SpeciesHide

Member of:

Vicanite Group

Other Members of Vicanite Group:

Arrheniusite-(Ce)	CaMg[(Ce₇Y₃)Ca₅](SiO₄)₄(Si₂B₃AsO₁₈)(BO₃)F₁₁	Trig. 3m : R3m
Hundholmenite-(Y)	(Y,REE,Ca,Na)₁₅(Al,Fe³⁺)(Ca_xAs³⁺_1-x)(Si,As⁵⁺)Si₆B₃(O,F)₄₈	Trig. 3m : R3m
Laptevite-(Ce)	Ca₆(Fe²⁺,Mn²⁺)Y₃REE₇(SiO₄)₃(PO₄)(B₃Si₃O₁₈)(BO₃)F₁₁	Trig. 3m : R3m
Okanoganite-(Y)	(Na,Ca)₃(Y,Ce)₁₂Si₆B₂O₂₇F₁₄	Trig. 3m : R3m
Vicanite-(Ce)	(Ca,Ce,La,Th)₁₅As⁵⁺(As³⁺_0.5,Na_0.5)Fe³⁺Si₆B₄O₄₀F₇	Trig. 3m : R3m

Related Minerals - Strunz-mindat Grouping Hide

9.AJ.	Hingganite-(Nd)	Nd₂◻Be₂Si₂O₈(OH)₂	Mon. 2/m : P2₁/b
9.AJ.	Arrheniusite-(Ce)	CaMg[(Ce₇Y₃)Ca₅](SiO₄)₄(Si₂B₃AsO₁₈)(BO₃)F₁₁	Trig. 3m : R3m
9.AJ.05	Ominelite	(Fe²⁺,Mg)(Al,Fe³⁺)₃(SiO₄)(BO₃)O₂	Orth. mmm(2/m2/m2/m)
9.AJ.05	Grandidierite	(Mg,Fe²⁺)(Al,Fe³⁺)₃(SiO₄)(BO₃)O₂	Orth. mmm(2/m2/m2/m)
9.AJ.10	Dumortierite	Al(Al₂O)(Al₂O)₂(SiO₄)₃(BO₃)	Orth. mmm(2/m2/m2/m)
9.AJ.10	Nioboholtite	(Nb_0.6◻_0.4)Al₆BSi₃O₁₈	Orth. mmm(2/m2/m2/m) : Pbcm
9.AJ.10	Titanoholtite	(Ti_0.75◻_0.25)Al₆BSi₃O₁₈	Orth. mmm(2/m2/m2/m) : Pbcm
9.AJ.10	Holtite	(Ta_0.6◻_0.4)Al₆BSi₃O₁₈(O,OH)_2.25	Orth. mmm(2/m2/m2/m) : Pnma
9.AJ.10	Magnesiodumortierite	Mg(Al₂OH)(Al₂O)₂(SiO₄)₃(BO₃)	Orth. mmm(2/m2/m2/m)
9.AJ.15	Garrelsite	Ba₃NaSi₂B₇O₁₆(OH)₄	Mon. 2/m : B2/b
9.AJ.20	'Muromontite'	near Be₂FeY₂Si₃O₁₂
9.AJ.20	Gadolinite-(Nd)	Nd₂Fe²⁺Be₂O₂(SiO₄)₂	Mon. 2/m : P2₁/b
9.AJ.20	Datolite	CaB(SiO₄)(OH)	Mon. 2/m : P2₁/b
9.AJ.20	Melanocerite-(Ce)	(Ce,Ca)₅(SiO₄,BO₄)₃(OH,O)	Hex.
9.AJ.20	Gadolinite-(Ce)	(Ce,La,Nd,Y)₂Fe²⁺Be₂Si₂O₁₀	Mon. 2/m
9.AJ.20	Gadolinite-(Y)	Y₂Fe²⁺Be₂Si₂O₁₀	Mon. 2/m : P2₁/b
9.AJ.20	'Unnamed (OH-analogue of Gadolinite-(Y))'	(Y,Ca)₂(Fe,◻)Be₂Si₂O₈(OH,O)₂	Mon. 2/m
9.AJ.20	Hingganite-(Ce)	(Ce,REE)₂(◻,Fe²⁺)Be₂[SiO₄]₂(OH)₂	Mon. 2/m : P2₁/b
9.AJ.20	Hingganite-(Y)	(Y,REE,Ca)₂(◻,Fe²⁺)Be₂[SiO₄]₂(OH)₂	Mon. 2/m : P2₁/b
9.AJ.20	Hingganite-(Yb)	(Yb,Y,REE)₂◻Be₂[SiO₄]₂(OH)₂	Mon. 2/m : P2₁/b
9.AJ.20	Homilite	Ca₂(Fe²⁺,Mg)B₂Si₂O₁₀	Mon. 2/m : P2₁/b
9.AJ.20	'Minasgeraisite-(Y)'	(Ca₂Y₂)◻₂(Be₂B₂)[SiO₄]₄(OH)₄	Tric. 1 : P1
9.AJ.20	Calcybeborosilite-(Y)	(Y,Ca)₂(◻,Fe²⁺)(B,Be)₂[SiO₄]₂(OH,O)₂	Mon.
9.AJ.25	Stillwellite-(La)	LaBSiO₅	Trig. 32 : P3₂21
9.AJ.25	Stillwellite-(Ce)	(Ce,La,Ca)BSiO₅	Trig. 3 : P3₁
9.AJ.30	Cappelenite-(Y)	Ba(Y,Ce)₆Si₃B₆O₂₄F₂	Trig. 3 : P3
9.AJ.35	Laptevite-(Ce)	Ca₆(Fe²⁺,Mn²⁺)Y₃REE₇(SiO₄)₃(PO₄)(B₃Si₃O₁₈)(BO₃)F₁₁	Trig. 3m : R3m
9.AJ.35	Okanoganite-(Y)	(Na,Ca)₃(Y,Ce)₁₂Si₆B₂O₂₇F₁₄	Trig. 3m : R3m
9.AJ.35	Hundholmenite-(Y)	(Y,REE,Ca,Na)₁₅(Al,Fe³⁺)(Ca_xAs³⁺_1-x)(Si,As⁵⁺)Si₆B₃(O,F)₄₈	Trig. 3m : R3m
9.AJ.35	Vicanite-(Ce)	(Ca,Ce,La,Th)₁₅As⁵⁺(As³⁺_0.5,Na_0.5)Fe³⁺Si₆B₄O₄₀F₇	Trig. 3m : R3m
9.AJ.40	Jadarite	LiNaSiB₃O₇(OH)	Mon. 2/m

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 Proshchenkoite-(Y)Hide

mindat.org URL:

https://www.mindat.org/min-35971.html
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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:

Buy from D. Joyce minerals

References for Proshchenkoite-(Y)Hide

Reference List:

Raade, G., Grice, J. D., Erambert, M., Kristiansson, P., Witzke, T. (2008) Proshchenkoite-(Y) from Russia — a new mineral species in the vicanite group: descriptive data and crystal structure. Mineralogical Magazine, 72 (5) 1071-1082 doi:10.1180/minmag.2008.072.5.1071

(2022) Proshchenkoite-(Y). Handbook of Mineralogy. Mineralogical Society of America

Localities for Proshchenkoite-(Y)Hide

Showing 1 localities.

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Locality ListHide

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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.

Russia (TL)

Sakha

Selennyakh range

Tommot river

ⓘ Tommotskii Massif (TL)

Raade et al. (2008)

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Proshchenkoite-(Y)

About Proshchenkoite-(Y)Hide

Unique IdentifiersHide

IMA Classification of Proshchenkoite-(Y)Hide

Classification of Proshchenkoite-(Y)Hide

Mineral SymbolsHide

Physical Properties of Proshchenkoite-(Y)Hide

Chemistry of Proshchenkoite-(Y)Hide

Crystallography of Proshchenkoite-(Y)Hide

Crystal StructureHide

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Type Occurrence of Proshchenkoite-(Y)Hide

Synonyms of Proshchenkoite-(Y)Hide

Other Language Names for Proshchenkoite-(Y)Hide

Relationship of Proshchenkoite-(Y) to other SpeciesHide

Related Minerals - Strunz-mindat GroupingHide

Other InformationHide

Internet Links for Proshchenkoite-(Y)Hide

References for Proshchenkoite-(Y)Hide

Localities for Proshchenkoite-(Y)Hide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide