UM1994-20-S:AgSn
Valid as an unnamed mineral
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Formula:
(Ag,Pb)12Sn2S11
Chemically related to canfieldite, UM1988-08-S:AgCu, and UM1988-12-S:AgSn. Differs from canfieldite in its optics characteristics.
As round to elongated inclusions (10-50 microns in size) in galena or ingrown, with galena, in sphalerite.
Gray with greenish tint in reflected light (in air; darker in oil). Neither pleochroic nor anisotropic. Polishing hardness greater than that of galena and smaller than that of sphalerite.
Electron microprobe analysis results, wt.% (one of four datapoints): Ag 66.9, Cu 0.2, Pb 1.6, Sn 13.2, S 18.5, total 100.4 wt%, corresponding to Ag47.0Cu0.2Pb0.6Sn8.4S43.8.
As round to elongated inclusions (10-50 microns in size) in galena or ingrown, with galena, in sphalerite.
Gray with greenish tint in reflected light (in air; darker in oil). Neither pleochroic nor anisotropic. Polishing hardness greater than that of galena and smaller than that of sphalerite.
Electron microprobe analysis results, wt.% (one of four datapoints): Ag 66.9, Cu 0.2, Pb 1.6, Sn 13.2, S 18.5, total 100.4 wt%, corresponding to Ag47.0Cu0.2Pb0.6Sn8.4S43.8.
Unique Identifiers
Mindat ID:
53523
Long-form identifier:
mindat:1:1:53523:8
Similar Names
| UM1970-26-S:CuZn | Cu3ZnS4 | |
| UM1980-12-S:CuZn | (Zn0.75Cu0.34Fe0.02)S | |
| UM1981-18-S:CuSn | Cu6CuSn2S8 | |
| UM1986-49-S:CuSn | Cu11Sn5S16 | |
| UM1988-12-S:AgSn | Ag2SnS3 | |
| UM1993-10-S:AgSb | Ag4Sb2S5 |
IMA Classification of UM1994-20-S:AgSn
IMA status notes:
Unnamed (probably valid)
Chemistry of UM1994-20-S:AgSn
Mindat Formula:
(Ag,Pb)12Sn2S11
Element Weights:
Elements listed:
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 UM1994-20-S:AgSn
mindat.org URL:
https://www.mindat.org/min-53523.html
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References for UM1994-20-S:AgSn
Reference List:
Localities for UM1994-20-S:AgSn
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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.
Japan | |
| Ono et al. (1994) +1 other reference |
