Cuproiridsite
A valid IMA mineral species
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About Cuproiridsite
Formula:
(Cu,Fe)Ir2S4
Colour:
Iron black
Lustre:
Metallic
Hardness:
5½
Specific Gravity:
7.24 (Calculated)
Crystal System:
Isometric
Member of:
Name:
For the chemical composition
Unique Identifiers
Mindat ID:
1186
Long-form identifier:
mindat:1:1:1186:6
IMA Classification of Cuproiridsite
Approved
IMA Formula:
Cu1+Ir3+Ir4+S2-4
Approval year:
1984
Classification of Cuproiridsite
2.DA.05
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
A : M:S = 3:4
2.10.1.15
2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
3.12.62
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 |
|---|---|---|
| Cir | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Cui | 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 Cuproiridsite
Metallic
Transparency:
Opaque
Colour:
Iron black
Hardness:
5½ on Mohs scale
Hardness:
VHN30=578 kg/mm2 - Vickers
Tenacity:
Very brittle
Density:
7.24 g/cm3 (Calculated)
Optical Data of Cuproiridsite
Type:
Isotropic
Reflectivity:
| Wavelength | R1 (%) |
|---|---|
| 460nm | 35.0% |
| 480nm | 34.4% |
| 500nm | 34.0% |
| 520nm | 34.0% |
| 540nm | 33.6% |
| 560nm | 33.4% |
| 580nm | 33.1% |
| 600nm | 32.8% |
| 620nm | 32.6% |
| 640nm | 32.4% |
| 660nm | 32.2% |
| 680nm | 32.1% |
| 700nm | 32.0% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 35.0%.
Colour in reflected light:
Gray
Chemistry of Cuproiridsite
Mindat Formula:
(Cu,Fe)Ir2S4
Element Weights:
Elements listed:
Common Impurities:
Fe,Ni,Pt,Rh
Crystallography of Cuproiridsite
Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Fd3m
Setting:
Fd3m
Cell Parameters:
a = 9.92 Å
Unit Cell V:
976.19 ų (Calculated from Unit Cell)
Z:
8
Morphology:
300 micron inclusions in isoferroplatinum
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0014173 | Cuproiridsite | Furubayashi T, Matsumoto T, Hagino T, Nagata S (1994) Structural and magnetic studies of metal-insulator transition in thiospinel CuIr2S4 Journal of the Physical Society of Japan 63 3333-3339 | 1994 | 0 | 293 | ||
| 0014172 | Cuproiridsite | Furubayashi T, Matsumoto T, Hagino T, Nagata S (1994) Structural and magnetic studies of metal-insulator transition in thiospinel CuIr2S4 Journal of the Physical Society of Japan 63 3333-3339 | 1994 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.00 Å | (100) |
| 1.760 Å | (100) |
| 2.489 Å | (90) |
| 1.912 Å | (70) |
| 1.011 Å | (70) |
| 1.290 Å | (60) |
| 1.107 Å | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3b: Earth’s earliest hydrosphere | >4.45 |
| 12 : Hadean hydrothermal subsurface sulfide deposits (see also #33) | |
| Near-surface Processes | |
| 26 : Hadean detrital minerals | |
| 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 Cuproiridsite
Co-Type Localities:
General Appearance of Type Material:
inclusions, to 300 µm, in isoferroplatinum and platinum
Place of Conservation of Type Material:
Mining Institute, St. Petersburg, Russia, 1686/1.
Geological Setting of Type Material:
Placer deposits
Synonyms of Cuproiridsite
Other Language Names for Cuproiridsite
Relationship of Cuproiridsite to other Species
Member of:
Other Members of Carrollite Subgroup:
| Berndlehmannite | Cu(CrV)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Carrollite | CuCo2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Cuprokalininite | Cu(Cr3+Cr4+)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Ezochiite | Cu+(Rh3+Pt4+)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Fletcherite | CuNi2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Florensovite | (Cu,Zn)Cr1.5Sb0.5S4 | Iso. m3m(4/m32/m) |
| Malanite | Cu+(Ir3+Pt4+)S4 | Iso. m3m(4/m32/m) |
| Rhodostannite | Cu+(Fe2+0.5Sn4+1.5)S4 | Tet. 4/m : I41/a |
| Shiranuiite | Cu+(Rh3+Rh4+)S4 | Iso. m3m(4/m32/m) : Fd3m |
| Toyohaite | Ag+(Fe2+0.5Sn4+1.5)S4 | Tet. 4/m : I41/a |
| 'Unnamed (Fe3+-analogue of Fletcherite)' | Cu(Fe3+,Ni,Co)2S4 |
Forms a series with:
Common Associates
Associations Based on Photo Data:
| 10 photos of Cuproiridsite associated with Isoferroplatinum | Pt3Fe |
| 7 photos of Cuproiridsite associated with Native Iridium | (Ir,Os,Ru) |
| 5 photos of Cuproiridsite associated with Native Osmium | (Os,Ir,Ru) |
| 3 photos of Cuproiridsite associated with Hollingworthite | (Rh,Pt,Pd)AsS |
| 3 photos of Cuproiridsite associated with Sperrylite | PtAs2 |
| 3 photos of Cuproiridsite associated with Laurite | RuS2 |
| 3 photos of Cuproiridsite associated with Rutheniridosmine | (Ir,Os,Ru) |
| 2 photos of Cuproiridsite associated with Kashinite | Ir2S3 |
| 2 photos of Cuproiridsite associated with Erlichmanite | OsS2 |
| 1 photo of Cuproiridsite associated with Bowieite | Rh2S3 |
Related Minerals - Strunz-mindat Grouping
| 2.DA. | Ferrodimolybdenite | FeMo2S4 |
| 2.DA. | Zaykovite | Rh3Se4 |
| 2.DA. | Ezochiite | Cu+(Rh3+Pt4+)S4 |
| 2.DA. | Grimmite | NiCo2S4 |
| 2.DA. | Zolenskyite | FeCr2S4 |
| 2.DA.05 | Shiranuiite | Cu+(Rh3+Rh4+)S4 |
| 2.DA.05 | Fletcherite | CuNi2S4 |
| 2.DA.05 | Florensovite | (Cu,Zn)Cr1.5Sb0.5S4 |
| 2.DA.05 | Siegenite | CoNi2S4 |
| 2.DA.05 | Cadmoindite | CdIn2S4 |
| 2.DA.05 | Kalininite | ZnCr2S4 |
| 2.DA.05 | Violarite | Fe2+Ni3+2S4 |
| 2.DA.05 | Nickeltyrrellite | CuNi2Se4 |
| 2.DA.05 | Linnaeite | Co2+Co3+2S4 |
| 2.DA.05 | Carrollite | CuCo2S4 |
| 2.DA.05 | Cuprorhodsite | (Cu+0.5Fe3+0.5)Rh3+2S4 |
| 2.DA.05 | Berndlehmannite | Cu(CrV)S4 |
| 2.DA.05 | Polydymite | Ni2+Ni3+2S4 |
| 2.DA.05 | Trüstedtite | Ni3Se4 |
| 2.DA.05 | Daubréelite | Fe2+Cr3+2S4 |
| 2.DA.05 | Cuprokalininite | Cu(Cr3+Cr4+)S4 |
| 2.DA.05 | Greigite | Fe2+Fe3+2S4 |
| 2.DA.05 | Joegoldsteinite | MnCr2S4 |
| 2.DA.05 | Bornhardtite | Co2+Co3+2Se4 |
| 2.DA.05 | Tyrrellite | Cu(Co,Ni)2Se4 |
| 2.DA.05 | Indite | FeIn2S4 |
| 2.DA.05 | Xingzhongite | Pb2+Ir3+2S4 |
| 2.DA.05 | Malanite | Cu+(Ir3+Pt4+)S4 |
| 2.DA.10 | Rhodostannite | Cu+(Fe2+0.5Sn4+1.5)S4 |
| 2.DA.10 | Toyohaite | Ag+(Fe2+0.5Sn4+1.5)S4 |
| 2.DA.15 | Brezinaite | Cr3S4 |
| 2.DA.15 | Heideite | (Fe,Cr)1.15(Ti,Fe)2S4 |
| 2.DA.20 | Konderite | Cu3Pb(Rh,Pt,Ir)8S16 |
| 2.DA.20 | Inaglyite | Cu3Pb(Ir,Pt)8S16 |
| 2.DA.25 | Kingstonite | Rh3S4 |
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 Cuproiridsite
mindat.org URL:
https://www.mindat.org/min-1186.html
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References for Cuproiridsite
Reference List:
Localities for Cuproiridsite
Showing 53 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.
Australia | |
| 5th International Platinum Symposium ... |
Austria | |
| Malitch et al. (2001) +2 other references |
| Malitch et al. (2002) |
| Melcher+Mali (1998) | |
Canada | |
| In the collection of Brent Thorne. ... |
| Barkov et al. (2005) | |
| Corrivaux et al. (1990) |
China | |
| Yuan et al. (2025) |
Cuba | |
| González-Jiménez et al. (2010) |
Finland | |
| 33rd International Geological Congress (2008) |
| Kari Kojonen (2012) |
| Kojonen et al. (2014) | |
France | |
| Ducluzaux (2022) |
| Ducluzaux (2022) |
Greece | |
| Garuti et al. (1999) |
| Garuti et al. (1997) |
Indonesia | |
| Idrus et al. (2022) |
Italy | |
| Zaccarini et al. (2005) |
Kazakhstan | |
| Melcher et al. (1997) +1 other reference |
| Saveliev et al. (2023) |
| Saveliev et al. (2023) | |
Myanmar | |
| Hagen et al. (1990) |
North Macedonia | |
| Augé et al. (2017) |
Philippines | |
| Oberthür et al. (2017) |
Russia | |
| Garuti et al. (2021) |
| Airiyants et al. (2020) |
| Sidorov et al. (2021) |
| Cabri et al. (2022) | |
| Kutyrev et al. (2018) +1 other reference | |
| Подлипский et al. (1999) |
| Pekov (1998) +1 other reference |
| Pekov (1998) +1 other reference |
| Rudashevsky et al. (1985) +1 other reference | |
| Barkov et al. (2023) |
| Pekov (1998) |
| Kiseleva et al. (2014) |
| Zaccarini et al. (2016) |
| Zaccarini et al. (2016) | |
| Stepanov et al. (2019) |
| Pavel M. Kartashov (n.d.) |
| Stepanov et al. (2019) |
| Stepanov et al. (2019) | |
| Zaccarini et al. (2008) |
| 9th International platinum symposium Chromite-PGE mineralization in the Uktus Alaskan-Type Complex (Central Urals,) +4 other references |
| Jan Pašava et al. (2011) |
| Jan Pašava et al. (2011) |
| Shmelev V.R. et al. (2014) | |
Sierra Leone | |
| Bowles et al. (2018) |
USA | |
| several EDS analyses by Bart Cannon. |
| Belkin et al. (2021) |
| Stockman et al. (1984) |
| Stockman et al. (1984) +1 other reference |
Zimbabwe | |
| Oberthür et al. (2013) |
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Placer deposit, Northern Pekul'ney River, Pekul'ney Range, Chukotka Autonomous Okrug, Russia