Moncheite
A valid IMA mineral species
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About Moncheite
Monchegorsk - fog over Cu-Ni industrial complex
Monchegorsk Cu-Ni Deposit, Monchegorsk, Murmansk Oblast, Russia
Monchegorsk Cu-Ni Deposit, Monchegorsk, Murmansk Oblast, Russia
Formula:
Pt(Te,Bi)2
Colour:
Steel-gray
Lustre:
Metallic
Hardness:
2 - 3
Specific Gravity:
9.88 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Named by A.D. Genkin, N.N. Zhuravlev, and E.M. Smirnova in 1963 for the Monchegorsk deposit and the Monche Tundra in northwest Russia.
This page provides mineralogical data about Moncheite.
Unique Identifiers
Mindat ID:
2754
Long-form identifier:
mindat:1:1:2754:6
GUID
(UUID V4):
(UUID V4):
80eda8e0-aeeb-4e81-bfec-12df72e952e5
IMA Classification of Moncheite
Approved
First published:
1963
Classification of Moncheite
2.EA.20
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
A : M:S = 1:2 - With Cu, Ag, Au
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
A : M:S = 1:2 - With Cu, Ag, Au
2.12.14.3
2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
3.12.48
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 |
|---|---|---|
| Mon | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Mon | 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 Moncheite
Metallic
Transparency:
Opaque
Colour:
Steel-gray
Hardness:
2 - 3 on Mohs scale
Hardness:
VHN10=73 - 111 kg/mm2 - Vickers
Cleavage:
Distinct/Good
(0001)
(0001)
Density:
9.88 g/cm3 (Calculated)
Optical Data of Moncheite
Anisotropism:
Stromng, except in sections close to (001).
Reflectivity:
| Wavelength | R |
|---|---|
| 400nm | 50.3–51.6% |
| 420nm | 51.5–52.6% |
| 440nm | 52.4–53.5% |
| 460nm | 53.4–54.4% |
| 480nm | 54.2–55.1% |
| 500nm | 54.9–55.8% |
| 520nm | 55.5–56.4% |
| 540nm | 56.0–56.9% |
| 560nm | 56.4–57.3% |
| 580nm | 56.7–57.6% |
| 600nm | 57.1–58.0% |
| 620nm | 57.4–58.4% |
| 640nm | 57.7–58.7% |
| 660nm | 58.0–59.0% |
| 680nm | 58.3–59.2% |
| 700nm | 58.4–59.4% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 58.4–59.4%.
Colour in reflected light:
white
Pleochroism:
Weak
Comments:
Weak in air, distinct in oil
Chemistry of Moncheite
Mindat Formula:
Pt(Te,Bi)2
Elements listed:
Crystallography of Moncheite
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
P3m1
Setting:
P3m1
Cell Parameters:
a = 4.049 Å, c = 5.288 Å
Ratio:
a:c = 1 : 1.306
Unit Cell V:
75.08 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Euhedral to subhedral crystals, to 1 mm, and as minute grains.
Crystal Structure
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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) |
|---|---|---|---|---|---|---|---|
| 0011795 | Moncheite | Wyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Crystal Structures 1 239-444 | 1963 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.32 Å | (60) |
| 2.93 Å | (100) |
| 2.11 Å | (80) |
| 2.02 Å | (70) |
| 1.664 Å | (60) |
| 1.462 Å | (70) |
| 1.282 Å | (70) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 2: Planetesimal differentiation and alteration | 4.566-4.550 |
| 6 : Secondary asteroid phases | 4.566-4.560 |
| High-𝑇 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 Moncheite
Place of Conservation of Type Material:
Geology Museum, Kola Branch, Academy of Sciences, Apatity, 5966.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 64852.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 64852.
Geological Setting of Type Material:
Pt-bearing massive Cu–Ni sulfide deposit.
Associated Minerals at Type Locality:
Reference:
Genkin, A.D., Zhuravlev, N.N., Smirnova, E.M. (1963) Moncheite and kotulskite - new minerals - and the composition of michenerite. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 92(1): 33-50.
Other Language Names for Moncheite
Varieties of Moncheite
| Chengbolite | A Bi-free varety |
Relationship of Moncheite to other Species
Member of:
Other Members of this group:
| Berndtite | SnS2 | Trig. 3m (3 2/m) : P3m1 |
| Kitkaite | NiTeSe | Trig. 3m (3 2/m) : P3m1 |
| Melonite | NiTe2 | Trig. 3m (3 2/m) : P3m1 |
| Merenskyite | PdTe2 | Trig. 3m : P3m1 |
| Shuangfengite | IrTe2 | Trig. 3m : P3m1 |
| Sudovikovite | PtSe2 | Trig. 3m (3 2/m) : P3m1 |
Common Associates
Associated Minerals Based on Photo Data:
| 10 photos of Moncheite associated with Chalcopyrite | CuFeS2 |
| 5 photos of Moncheite associated with Galena | PbS |
| 5 photos of Moncheite associated with Talnakhite | Cu9(Fe,Ni)8S16 |
| 5 photos of Moncheite associated with Braggite | PdPt3S4 |
| 4 photos of Moncheite associated with Oulankaite | (Pd,Pt)5(Cu,Fe)4SnTe2S2 |
| 4 photos of Moncheite associated with Telargpalite | (Pd,Ag)3(Te,Bi) |
| 4 photos of Moncheite associated with Gold | Au |
| 3 photos of Moncheite associated with Cooperite | PtS |
| 2 photos of Moncheite associated with Kotulskite | Pd(Te,Bi)2-x (x ≈ 0.4) |
| 1 photo of Moncheite associated with Froodite | α-PdBi2 |
Related Minerals - Strunz-mindat Grouping
| 2.EA. | Radvaniceite | GeS2 |
| 2.EA.05 | Sylvanite | AgAuTe4 |
| 2.EA.10 | Calaverite | AuTe2 |
| 2.EA.15 | Kostovite | CuAuTe4 |
| 2.EA.15 | Krennerite | Au3AgTe8 |
| 2.EA.20 | Berndtite | SnS2 |
| 2.EA.20 | Kitkaite | NiTeSe |
| 2.EA.20 | Melonite | NiTe2 |
| 2.EA.20 | Merenskyite | PdTe2 |
| 2.EA.20 | Shuangfengite | IrTe2 |
| 2.EA.20 | Sudovikovite | PtSe2 |
| 2.EA.20 | Ognitite | NiBiTe |
| 2.EA.25 | Verbeekite | PdSe2 |
| 2.EA.30 | Drysdallite | MoSe2 |
| 2.EA.30 | Jordisite | MoS2 |
| 2.EA.30 | Molybdenite | MoS2 |
| 2.EA.30 | Tungstenite | WS2 |
| 2.EA.40 | Pampaloite | AuSbTe |
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 Moncheite
mindat.org URL:
https://www.mindat.org/min-2754.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Moncheite
Reference List:
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
(1980) International Mineralogical Association: Commission on New Minerals and Mineral Names. Mineralogical Magazine, 43 (332) 1053-1055 doi:10.1180/minmag.1980.043.332.17
Nickel, Ernest H., Mandarino, Joseph A. (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature. American Mineralogist, 72 (9-10) 1031-1042
Localities for Moncheite
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.
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Oktyabrsky Mine, Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia