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

Locality type:Mine
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Comments:Some (all?) alleged bertrandite specimens from here were really from a different locality, many of them from the Liubao mine in Guangxi Province (although Berthold Ottens does not doubt the real occurrence of bertrandite at Yaogangxian).
Confirmation
Validity:Unconfirmed/Questioned
References
References: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): Mineralogical Record 42, 557-603
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
Nearest other occurrences of Bertrandite
78.4km (48.7 miles) A β“˜Xianghualing Mine (Hsianghualing Mine), Xianghualing Sn-polymetallic ore field, Linwu Co., Chenzhou Prefecture, Hunan Province, China
159.1km (98.9 miles) B β“˜Dajishan Mine (Tachishan Mine), Quannan Co., Ganzhou Prefecture, Jiangxi Province, China
Mineral and/or Locality  
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