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Selenium-bearing Famatinite
A variety of Famatinite
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Formula:
Cu3Sb(S,Se)4
Colour:
Lead grey, brassy
Lustre:
Metallic
Hardness:
4 - 4½
A selenium-bearing variety of famatinite with up to 23.89% (w/w) of selenium.
Liu et al. (2000) discern seleniferous famatinite (in Chinese: 含硒诀硫锑铜矿, translating as selenium-bearing famatinite) with selenium substituting for less than 20 mol-% of sulphur, and selenium-rich famatinite (in Chinese: 硒诀硫锑铜矿, translating as seleno-famatinite) with selenium substituting for 20 or more mol-% of sulphur. Electron microprobe analyses of samples from the Qiongmo gold deposit show 6.11-9.57% (w/w) of selenium for "selenium-bearing famatinite" and 15.31-23.89% (w/w) of selenium for "seleno-famatinite".
Liu et al. (2000) discern seleniferous famatinite (in Chinese: 含硒诀硫锑铜矿, translating as selenium-bearing famatinite) with selenium substituting for less than 20 mol-% of sulphur, and selenium-rich famatinite (in Chinese: 硒诀硫锑铜矿, translating as seleno-famatinite) with selenium substituting for 20 or more mol-% of sulphur. Electron microprobe analyses of samples from the Qiongmo gold deposit show 6.11-9.57% (w/w) of selenium for "selenium-bearing famatinite" and 15.31-23.89% (w/w) of selenium for "seleno-famatinite".
Unique Identifiers
Mindat ID:
46278 (as Selenium-bearing Famatinite)
1451 (as Famatinite)
1451 (as Famatinite)
Long-form identifier:
mindat:1:1:46278:3 (as Selenium-bearing Famatinite)
mindat:1:1:1451:5 (as Famatinite)
mindat:1:1:1451:5 (as Famatinite)
Physical Properties of Selenium-bearing Famatinite
Metallic
Colour:
Lead grey, brassy
Hardness:
4 - 4½ on Mohs scale
Hardness:
VHN50=235 - 260 kg/mm2 - Vickers
Hardness Data:
Estimated
Comment:
Measured VHN hardness corresponds to a Mohs hardness of 4.2
Chemistry of Selenium-bearing Famatinite
Mindat Formula:
Cu3Sb(S,Se)4
Element Weights:
Elements listed:
Synonyms of Selenium-bearing Famatinite
Other Language Names for Selenium-bearing Famatinite
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 Selenium-bearing Famatinite
mindat.org URL:
https://www.mindat.org/min-46278.html
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References for Selenium-bearing Famatinite
Localities for Selenium-bearing Famatinite
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.
China | |
| Jiajun Liu et al. (2000) |
