UM1974-02-Bi:AsPdPtSb
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Formula:
(Pt,Pd)(Bi,Sb,As)
Colour:
yellowish
Possibly the Pt analogue of sobolevskite (and the Bi analogue of stumpflite). Chemically related to insizwaite.
Grains (35-micron in size) occur within Pt-bearing concentrates from the Driekop Mine, Transvaal, RSA. Associates: geversite, hollingworthite, irarsite, Pt-Fe alloys, sperrylite, some other platinum-group minerals (PGM), including 'UM1975-17-Sb:PdPt'.
Grains (35-micron in size) occur within Pt-bearing concentrates from the Driekop Mine, Transvaal, RSA. Associates: geversite, hollingworthite, irarsite, Pt-Fe alloys, sperrylite, some other platinum-group minerals (PGM), including 'UM1975-17-Sb:PdPt'.
Unique Identifiers
Mindat ID:
47324
Long-form identifier:
mindat:1:1:47324:8
Similar Names
| UM1990-04-As:PdPtSb | (Pd,Pt)3(As,Sb) |
Physical Properties of UM1974-02-Bi:AsPdPtSb
Colour:
Yellowish
Comment:
Light not specified (probably reflected type)
Hardness:
VHN100=301 - 352 - Vickers
Optical Data of UM1974-02-Bi:AsPdPtSb
Anisotropism:
strong
Bireflectance:
strong, light yellow to brownish yellow
Reflectivity:
| Wavelength | R1 (%) | R2 (%) |
|---|---|---|
| 440nm | 46.2% | 51.0% |
| 470nm | 49.7% | 55.7% |
| 480nm | 50.7% | 56.5% |
| 520nm | 54.8% | 60.2% |
| 546nm | 56.2% | 62.0% |
| 560nm | 57.1% | 63.2% |
| 589nm | 59.4% | 66.4% |
| 0nm | 59.8% | 66.8% |
| 0nm | 0% | % |
| 640nm | 62.6% | 68.8% |
| 650nm | 62.6% | 69.0% |
| 680nm | 62.4% | 69.9% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 69.9%.
R1 shown in black, R2 shown in red
Chemistry of UM1974-02-Bi:AsPdPtSb
Mindat Formula:
(Pt,Pd)(Bi,Sb,As)
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 UM1974-02-Bi:AsPdPtSb
mindat.org URL:
https://www.mindat.org/min-47324.html
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References for UM1974-02-Bi:AsPdPtSb
Reference List:
Localities for UM1974-02-Bi:AsPdPtSb
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.
South Africa | |
| Tarkian et al. (1974) +1 other reference |
