Boulangerite from
Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China

Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
© Knut Eldjarn

Description
Comments:	Boulangerite is much rarer here than collectors think, with many alleged "boulangerite" specimens being stibnite (Jensen, 2009).
Habit:	Acicular fibrous crystals to 12 cm
Colour:	Metallic silvery gray
UV Fluorescence:	Not fluorescent
Quality of samples:	Excellent - world class for species or very significant. (!!)
Rarity at site:	Rare
Confirmation
Validity:	Believed Valid
References
References:	Bosheng Zhou, Guohua Zhang, Shuqing Gong, and Yousheng Zeng (2002): Geophysical & Geochemical Exploration 26(6), 436-438; Ottens, B., and Cook, R.B. (2005): Rocks & Minerals 80(1), 46-57; Jensen, M. (2009): Mineral News 25(4), 1-11, 14; Ottens, B. (2011): Lapis 36(9), 27-33; Ottens, B. (2011) The Yaogangxian mine, Hunan Province, China. Mineralogical Record 42:557-603.
Data
Mineral Data:	Click here to view Boulangerite data
Locality Data:	Click here to view Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
Photo Gallery	View Gallery (28 photos)

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Current server date and time: 17th Feb 2012 15:39:29