Cadmoindite
A valid IMA mineral species
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About Cadmoindite
Formula:
CdIn2S4
Colour:
Black to dark brown, red in thin slivers
Lustre:
Adamantine
Crystal System:
Isometric
Member of:
Name:
Named for the composition that includes cadmium and indium.
Unique Identifiers
Mindat ID:
27212
Long-form identifier:
mindat:1:1:27212:6
IMA Classification of Cadmoindite
Approved
IMA Formula:
Cd2+In3+2S2-4
Approval year:
2003
First published:
2004
Classification of Cadmoindite
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
Mineral Symbols
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 |
|---|---|---|
| Cad | 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 Cadmoindite
Adamantine
Transparency:
Translucent
Colour:
Black to dark brown, red in thin slivers
Streak:
Brown
Hardness:
VHN20=206 kg/mm2 - Vickers
Fracture:
Conchoidal
Optical Data of Cadmoindite
Reflectivity:
| Wavelength | R1 (%) |
|---|---|
| 400nm | 24.9% |
| 420nm | 24.8% |
| 400nm | 24.4% |
| 460nm | 24.1% |
| 470nm | 23.9% |
| 480nm | 23.5% |
| 500nm | 22.8% |
| 520nm | 22.3% |
| 540nm | 21.7% |
| 546nm | 21.6% |
| 560nm | 21.4% |
| 580nm | 21.0% |
| 589nm | 20.8% |
| 600nm | 20.7% |
| 620nm | 20.4% |
| 640nm | 20.3% |
| 650nm | 20.2% |
| 660nm | 20.3% |
| 680nm | 20.0% |
| 700nm | 19.8% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 24.9%.
Colour in reflected light:
grey
Internal Reflections:
brown-red
Chemistry of Cadmoindite
Mindat Formula:
CdIn2S4
Element Weights:
Elements listed:
Crystallography of Cadmoindite
Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 10.81 Å
Unit Cell V:
1263.21 ų
Z:
8
Morphology:
octahedral
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) |
|---|---|---|---|---|---|---|---|
| 0015766 | Cadmoindite | Hahn H, Klingler W (1950) Untersuchungen uber ternare chalkogenide. I. Uber die kristallstruktur einiger ternaerer sulfide, die sich vom In2S3 ableiten Zeitschrift fur Anorganische und Allgemeine Chemie 263 177-190 | 1950 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.87 Å | (4) |
| 3.27 Å | (10) |
| 2.70 Å | (6) |
| 2.07 Å | (8) |
| 1.91 Å | (9) |
| 1.41 Å | (6) |
| 1.246 Å | (7) |
| 1.107 Å | (9) |
| 1.045 Å | (8) |
Comments:
Kudriavy volcano, Russia. Data from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 11 : Volcanic fumarole minerals; reduced phases (see also #45) | |
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 54 : Coal and other mine fire minerals (see also #51 and #56) |
Type Occurrence of Cadmoindite
General Appearance of Type Material:
Well-formed, sharp, octahedral crystals to 0.15 mm.
Place of Conservation of Type Material:
A. E. Fersman Mineralogical Museum, Moscow, Russia (catalog no. 317/1).
Geological Setting of Type Material:
Cadmoindite occurs around the vent of a high-temperature (450–600°C) fumarole.
Associated Minerals at Type Locality:
Synonyms of Cadmoindite
Other Language Names for Cadmoindite
Relationship of Cadmoindite to other Species
Member of:
Other Members of Linnaeite Subgroup:
| Cuprorhodsite | (Cu+0.5Fe3+0.5)Rh3+2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Daubréelite | Fe2+Cr3+2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Greigite | Fe2+Fe3+2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Grimmite | NiCo2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Indite | FeIn2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Joegoldsteinite | MnCr2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Kalininite | ZnCr2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Linnaeite | Co2+Co3+2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Polydymite | Ni2+Ni3+2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Siegenite | CoNi2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Tarkianite | (Cu,Fe)(Re,Mo)4S8 | Iso. 43m : F43m |
| Violarite | Fe2+Ni3+2S4 | Iso. m3m(4/m32/m) : Fd3m |
| Xingzhongite | Pb2+Ir3+2S4 | Iso. |
Common Associates
Associations Based on Photo Data:
| 3 photos of Cadmoindite associated with 'Cadmium-rich Wurtzite' | (Zn,Cd)S |
| 1 photo of Cadmoindite associated with Wurtzite | (Zn,Fe)S |
| 1 photo of Cadmoindite associated with Bismuthinite | Bi2S3 |
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 | 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 | Cuproiridsite | (Cu,Fe)Ir2S4 |
| 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 Cadmoindite
mindat.org URL:
https://www.mindat.org/min-27212.html
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References for Cadmoindite
Reference List:
Hahn, Harry, Klingler, Wilhelm (1950) Über die Kristallstruktur einiger ternärer Sulfide, die sich vom Indium(III)-sulfid ableiten. Zeitschrift für anorganische und allgemeine Chemie, 263 (4). 177-190 doi:10.1002/zaac.19502630406
Localities for Cadmoindite
Showing 4 localities.
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.
Czech Republic | |
| Sejkora et al. (2001) |
| Matýsek et al. (2022) |
Russia (TL) | |
| maurice.strahlen.org (2004) +2 other references |
| Shevko et al. (2018) |
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The
Kudriavy volcano, Iturup Island, Kurilsky District, Kuril Islands, Sakhalin Oblast, Russia