Keithconnite (original) (raw)
A valid IMA mineral species
About KeithconniteHide
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Specific Gravity:
11.72 (Calculated)
Name:
Named for Herbert Keith Conn (1923-2004), Canadian geologist and mine official, who was instrumental in the discovery of Pt-Pd mineralization of the Stillwater deposit, and who provided the material for study.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2176:6
f0ab45e2-0ed8-4d52-9740-42fe4e9d9807
IMA Classification of KeithconniteHide
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Type description reference:
Classification of KeithconniteHide
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2.BC.20
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.
2.2.6.1
2 : SULFIDES
2 : AmBnXp, with (m+n):p = 3:1
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Kei | 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 KeithconniteHide
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Hardness:
VHN15=394 - 424 kg/mm2 - Vickers
Density:
11.72 g/cm3 (Calculated)
Optical Data of KeithconniteHide
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Anisotropism:
Moderate to strong
Colour in reflected light:
cream colored
Comments:
Not detectable in air; very slight in oil.
Comments:
dull cream with brownish tint with kotulskite; gray next to telluropalladinite.
Chemistry of KeithconniteHide
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Crystallography of KeithconniteHide
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Class (H-M):
3 - Rhombohedral
Cell Parameters:
a = 11.458(10) Å, c = 11.296(12) Å
Unit Cell V:
1,284.32 ų (Calculated from Unit Cell)
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.26 Å | (100) |
| 2.16 Å | (90) |
| 0.791 Å | (40) |
| 1.32 Å | (30) |
| 0.885 Å | (30) |
| 2.22 Å | (20) |
| 1.40 Å | (20) |
Geological EnvironmentHide
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Type Occurrence of KeithconniteHide
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General Appearance of Type Material:
Place of Conservation of Type Material:
Canadian Geological Survey, Ottawa, 12187, 12188; Royal Ontario Museum, Toronto, Canada, M35867; National Museum of Natural History, Washington, D.C., USA, 114975
Geological Setting of Type Material:
layered ultrabasic complex
Associated Minerals at Type Locality:
Reference:
Cabri, L.J., Rowland, J.F., Laflamme, J.H.G., and Stewart, J.M. (1979) Keithconnite, telluropalladinite and other palladium-platinum tellurides from the Stillwater Complex, Montana. Canadian Mineralogist: 17: 589-594.
Synonyms of KeithconniteHide
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Other Language Names for KeithconniteHide
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Varieties of KeithconniteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Other InformationHide
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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 KeithconniteHide
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References for KeithconniteHide
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Reference List:
Localities for KeithconniteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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). 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.