UM2000-05-E:AuSn
Invalid as an unnamed mineral
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Formula:
AuSn2
Most likely identical to rumoiite.
Found within organic-rich alluvial sediment, as a single particle 20 × 65 µm in size. It comprises an aggregate of acicular domains, ca. 1 µm in length, close to Ag-bearing gold. Other associates are cassiterite, tin, and Sn-Pb alloys.
Electron microprobe data, wt.%:
Au 55.57
Ag <0.05
Cu <0.05
Sn 43.05,
total 98.62
This corresponds to Au31.89Sn68.11 or AuSn2.19.
Found within organic-rich alluvial sediment, as a single particle 20 × 65 µm in size. It comprises an aggregate of acicular domains, ca. 1 µm in length, close to Ag-bearing gold. Other associates are cassiterite, tin, and Sn-Pb alloys.
Electron microprobe data, wt.%:
Au 55.57
Ag <0.05
Cu <0.05
Sn 43.05,
total 98.62
This corresponds to Au31.89Sn68.11 or AuSn2.19.
Unique Identifiers
Mindat ID:
10338
Long-form identifier:
mindat:1:1:10338:5
Similar Names
| UM1965-06-E:CuSn | A synonym of Eta-bronze | Cu6Sn5 |
| UM1965-07-E:CuSn | Cu3Sn | |
| UM1984-03-As:Ni | Ni3As5 | |
| UM1985-05-E:CuSn | (Cu,Pb)5Sn2 |
IMA Classification of UM2000-05-E:AuSn
IMA status notes:
Unnamed (probably invalid)
Approval history:
Unnamed, and probably invalid.
Optical Data of UM2000-05-E:AuSn
Anisotropism:
strong: strong: blue to brown-yellow tints
Colour in reflected light:
white
Pleochroism:
Non-pleochroic
Chemistry of UM2000-05-E:AuSn
Mindat Formula:
AuSn2
Element Weights:
| Element | % weight |
|---|---|
| Sn | 54.656 % |
Calculated from ideal end-member formula.
Elements listed:
Synonyms of UM2000-05-E:AuSn
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 UM2000-05-E:AuSn
mindat.org URL:
https://www.mindat.org/min-10338.html
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References for UM2000-05-E:AuSn
Reference List:
Localities for UM2000-05-E:AuSn
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.
Switzerland | |
| Jambor et al. (2001) |
