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Sopcheite
A valid IMA mineral species
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About Sopcheite
Formula:
Ag4Pd3Te4
Colour:
Gray
Lustre:
Metallic
Hardness:
3½
Specific Gravity:
9.948 (Calculated)
Crystal System:
Orthorhombic
Member of:
Name:
Named after its discovery locality.
This page provides mineralogical data about Sopcheite.
Unique Identifiers
Mindat ID:
3713
Long-form identifier:
mindat:1:1:3713:2
IMA Classification of Sopcheite
Approved
Approval year:
1980
First published:
1982
Classification of Sopcheite
2.BC.55
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
C : With Rh, Pd, Pt, etc.
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
C : With Rh, Pd, Pt, etc.
2.16.10.1
2 : SULFIDES
16 : Miscellaneous
2 : SULFIDES
16 : Miscellaneous
3.12.19
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
Mineral Symbols
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Sop | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Sop | 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 Sopcheite
Metallic
Transparency:
Opaque
Colour:
Gray
Hardness:
3½ on Mohs scale
Hardness:
VHN10=134 - 209 kg/mm2 - Vickers
Density:
9.948 g/cm3 (Calculated)
Optical Data of Sopcheite
Anisotropism:
Color effects yellowish-red to bluish
Reflectivity:
| Wavelength | R1 (%) |
|---|---|
| 440nm | 39.6% |
| 460nm | 40.3% |
| 480nm | 41.6% |
| 500nm | 42.4% |
| 520nm | 42.8% |
| 540nm | 43.0% |
| 560nm | 43.5% |
| 580nm | 44.4% |
| 600nm | 45.2% |
| 620nm | 45.8% |
| 640nm | 46.6% |
| 660nm | 47.3% |
| 680nm | 48.0% |
| 700nm | 48.5% |
| 720nm | 48.5% |
| 740nm | 48.3% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 48.5%.
Colour in reflected light:
Light gray with brown tint
Internal Reflections:
None
Chemistry of Sopcheite
Mindat Formula:
Ag4Pd3Te4
Element Weights:
Elements listed:
Common Impurities:
Fe,Cu,Ni,Bi
Crystallography of Sopcheite
Crystal System:
Orthorhombic
Cell Parameters:
a = 9.645 Å, b = 7.906 Å, c = 11.040 Å
Ratio:
a:b:c = 1.22 : 1 : 1.396
Unit Cell V:
841.84 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Massive
Comment:
Point Group: n.d.; Space Group: n.d.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.33 Å | (100) |
| 1.805 Å | (70b) |
| 2.56 Å | (60) |
| 2.70 Å | (50) |
| 2.30 Å | (50b) |
| 4.12 Å | (40) |
| 2.15 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 37 : Layered igneous intrusions and related PGE minerals |
Type Occurrence of Sopcheite
General Appearance of Type Material:
Xenomorphic veins in chalcopyrite; grains not exceeding 0.02 mm.
Place of Conservation of Type Material:
Mineralogical Museum, Kola Branch, Russian Academy of Science, Apatity, Russia.
Associated Minerals at Type Locality:
Synonyms of Sopcheite
Other Language Names for Sopcheite
Relationship of Sopcheite to other Species
Member of:
Other Members of Telargpalite Group:
| Telargpalite | (Pd,Ag)3(Te,Bi) | Iso. |
| Temagamite | Pd3HgTe3 | Trig. 3m : P3m1 |
Common Associates
Associations Based on Photo Data:
| 1 photo of Sopcheite associated with Kotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
| 1 photo of Sopcheite associated with Hessite | Ag2Te |
| 1 photo of Sopcheite associated with Altaite | PbTe |
| 1 photo of Sopcheite associated with Pentlandite | (NixFey)Σ9S8 |
| 1 photo of Sopcheite associated with Chalcopyrite | CuFeS2 |
Related Minerals - Strunz-mindat Grouping
| 2.BC. | Panskyite | Pd9Ag2Pb2S4 |
| 2.BC. | Fleetite | Cu2RhIrSb2 |
| 2.BC. | Coldwellite | Pd3Ag2S |
| 2.BC. | 'UM2004-45-Se:AgHgPd' | (Ag,Cu)6Hg2Pd2Se3 |
| 2.BC.05 | 'UM2000-47-S:CuFePdPt' | PtPd(Fe,Cu)S |
| 2.BC.05 | Miassite | Rh17S15 |
| 2.BC.05 | Palladseite | Pd17Se15 |
| 2.BC.10 | Oosterboschite | (Pd,Cu)7Se5 |
| 2.BC.15 | Chrisstanleyite | Ag2Pd3Se4 |
| 2.BC.15 | Jagüéite | Cu2Pd3Se4 |
| 2.BC.20 | Keithconnite | Pd20Te7 |
| 2.BC.25 | Vasilite | (Pd,Cu)16(S,Te)7 |
| 2.BC.30 | Telluropalladinite | Pd9Te4 |
| 2.BC.35 | Kojonenite | Pd7-xSnTe2 (0.3 ≤ x ≤ 0.8) |
| 2.BC.35 | Luberoite | Pt5Se4 |
| 2.BC.37 | Kravtsovite | PdAg2S |
| 2.BC.40 | Oulankaite | (Pd,Pt)5(Cu,Fe)4SnTe2S2 |
| 2.BC.40 | Lukkulaisvaaraite | Pd14Ag2Te9 |
| 2.BC.42 | Monchetundraite | Pd2NiTe2 |
| 2.BC.45 | Telargpalite | (Pd,Ag)3(Te,Bi) |
| 2.BC.45 | Thalhammerite | Pd9Ag2Bi2S4 |
| 2.BC.47 | Vymazalováite | Pd3Bi2S2 |
| 2.BC.50 | Temagamite | Pd3HgTe3 |
| 2.BC.55 | Bowlesite | PtSnS |
| 2.BC.60 | Laflammeite | Pd3Pb2S2 |
| 2.BC.65 | Tischendorfite | Pd8Hg3Se9 |
Other Information
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 Sopcheite
mindat.org URL:
https://www.mindat.org/min-3713.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Sopcheite
Reference List:
Cabri, L. J., Laflamme, J. H. G. (1976) The mineralogy of the platinum-group elements from some copper-nickel deposits of the Sudbury area, Ontario. Economic Geology, 71 (7) 1159-1195 doi:10.2113/gsecongeo.71.7.1159
Dunn, Pete J., Fleischer, Michael, Burns, Roger G., Pabst, Adolf (1983) New mineral names. American Mineralogist, 68 (3-4) 471-475 p.472
Vymazalová, Anna, Laufek, František, Kristavchuk, Alexandr V., Chareev, Dmitriy A., Drábek, Milan (2015) The system Ag–Pd–Te: phase relations and mineral assemblages. Mineralogical Magazine, 79 (7) 1813-1832 doi:10.1180/minmag.2015.079.7.11
Laufek, František, Vymazalová, Anna, Grokhovskaya, Tatiana Lvovna, Plášil, Jakub, Dušek, Michal, Orsoev, Dmitryi Anatolevich, Kozlov, Vladimir V (2017) The crystal structure of sopcheite, Ag4Pd3Te4, from the Lukkulaisvaara intrusion, Karelia, Russia. European Journal of Mineralogy, 29 (4) 603-612 doi:10.1127/ejm/2017/0029-2664
Localities for Sopcheite
Showing 54 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Canada | |
| Nixon et al. (1998) |
| Canadian Mineralogist 45 +1 other reference |
| Dunning et al. (1984) |
| Hoffman et al. (1979) | |
| Ames et al. (2007) +1 other reference |
| Mulja & Mitchell (1990) |
| Ames et al. (2017) | |
| Caglioti (2023) | |
| Dunning et al. (1984) |
| Watkinson et al. (1992) |
| Mulja et al. (1990) +1 other reference |
| Smith (2021) |
Finland | |
| Pelayo Barrón Francisco (2020) |
Greece | |
| McFall et al. (2016) +1 other reference |
Greenland | |
| Holwell et al. (2015) |
India | |
| Ndhlovu (2017) |
Philippines | |
| Piestrzyński et al. (1994) |
Poland | |
| Nejbert (2008) |
Russia | |
| Plotinskaya et al. (2018) |
| Буханова (2018) |
| - (2014) |
| Vymazalová et al. (2017) |
| Barkov et al. (2021) +1 other reference | |
| Groshev +6 other references |
| Groshev +6 other references | |
| Groshev +6 other references | |
| Groshev +7 other references | |
| Groshev +6 other references | |
| Grokhovskaya et al. (2009) |
| Yury L. Voytekhovsky (2008) | |
| Orsoev et al. (1982) +3 other references |
| Chashchin et al. (2023) | |
| Chashchin et al. (2027) |
| Y.A. et al. (2019) |
| Chashchin et al. (2013) | |
| Chashchin et al. (2013) | |
| Grokhovskaya et al. (2005) |
| Grishaenko et al. (2007) | |
| Barkov et al. (1993) +1 other reference |
| Barkov et al. (1996) +1 other reference | |
| Голубев et al. (2008) |
| Stepanov et al. (2023) |
| - (2014) |
| Kuzhuget et al. (2023) +1 other reference |
| - (2014) | |
| Vikentyev et al. (2023) |
| Shaibekov et al. (2024) |
Sierra Leone | |
| Stenhouse et al. (2016) |
South Africa | |
| McFall et al. (2019) |
| McCreesh et al. (2018) |
| Matthias Boehringer collection |
Tanzania | |
| Wilhelmij et al. (2016) |
USA | |
| Econ Geol (1992) +2 other references |
| Summerlin (2014) |
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Rustenburg Local Municipality, Bojanala Platinum District Municipality, North West, South Africa