Stibiopalladinite (original) (raw)
A valid IMA mineral species - grandfathered
About StibiopalladiniteHide
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Colour:
Silver, white to steel-gray, also pale brownish-yellow
Specific Gravity:
10.8 (Calculated)
Name:
Named by L. J. Cabri and T. T. Chen in 1976 for its composition: antimony (Greek "stibi") and palladium.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:3758:3
f416eb33-c42d-479a-b76e-cfd238f14899
IMA Classification of StibiopalladiniteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Classification of StibiopalladiniteHide
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2.AC.20a
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
C : Alloys of metalloids with PGE
2.3.3.1
2 : SULFIDES
3 : AmBnXp, with (m+n):p = 5:2
3.12.32
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 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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Stpdn | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Std | 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 StibiopalladiniteHide
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Colour:
Silver, white to steel-gray, also pale brownish-yellow
Hardness:
VHN100=610(7) kg/mm2 - Vickers
Density:
10.8 g/cm3 (Calculated)
Optical Data of StibiopalladiniteHide
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Anisotropism:
Distinct, colors usually lacking but some grains are purplish gray to greenish gray.
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 400nm | 39.9% | 40.6% |
| 420nm | 42.2% | 43.4% |
| 440nm | 44.5% | 46.2% |
| 460nm | 46.6% | 48.5% |
| 480nm | 48.4% | 50.4% |
| 500nm | 50.0% | 52.0% |
| 520nm | 51.4% | 53.2% |
| 540nm | 52.5% | 54.2% |
| 560nm | 53.5% | 54.8% |
| 580nm | 54.4% | 55.2% |
| 600nm | 55.4% | 55.6% |
| 620nm | 56.4% | 56.0% |
| 640nm | 57.4% | 56.6% |
| 660nm | 58.6% | 57.1% |
| 680nm | 59.7% | 57.6% |
| 700nm | 61.0% | 58.3% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 61.0%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Yellowish white
Comments:
In pale yellow to yellowish white, also sometimes faint greenish, pinkish, or lavender.
Chemistry of StibiopalladiniteHide
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Common Impurities:
Cu,Sn,As
Crystallography of StibiopalladiniteHide
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Cell Parameters:
a = 7.598(2) Å, c = 28.112(9) Å
Unit Cell V:
1,405.47 ų (Calculated from Unit Cell)
Comment:
Point Group: 6/m 2/m 2/m, 6mm, or 6m2. Space Group: P63/mmc, P63mc, or P62c.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014134 | Stibiopalladinite | El-Boragy M, Bhan S, Schubert K (1970) Die kristallstruktur von Pd5Sb2 und Ni5As2 und einigen varianten Journal of the Less-Common Metals 22 445-458 | 1970 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.236 Å | (100) |
| 2.194 Å | (100) |
| 1.576 Å | (40) |
| 1.297 Å | (50) |
| 1.267 Å | (30) |
| 1.228 Å | (50) |
| 1.183 Å | (50) |
Comments:
Cabri and Chen (1976)
Geological EnvironmentHide
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Type Occurrence of StibiopalladiniteHide
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General Appearance of Type Material:
Particles large enough to be seen with the naked eye.
Place of Conservation of Type Material:
British Museum (Natural History), London, England, 1930,950-2.
Royal Ontario Museum, Toronto, Ontario, Canada, M34229.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 135408.
Associated Minerals at Type Locality:
Reference:
Adam, H.R. (1927) A note on a new palladium mineral from the Potgietersrust platinum fields. The Journal of the Chemical, Metallurgical & Mining Society of South Africa: 27: 249-250.
Synonyms of StibiopalladiniteHide
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Other Language Names for StibiopalladiniteHide
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Simplified Chinese:锑钯矿
Traditional Chinese:銻鈀礦
Relationship of Stibiopalladinite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Fluorescence of StibiopalladiniteHide
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Other InformationHide
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Notes:
Not attacked by hydrochloric acid and only slowly by nitric and sulphuric acid. Easily dissolved by dilute aqua regia.
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 StibiopalladiniteHide
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References for StibiopalladiniteHide
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Localities for StibiopalladiniteHide
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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.