Mindat Logo

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

Description
Comments:This mineral has been reported from the vein-type ore bodies (Chen, 1981). However, all traded specimens of alleged silvery fibrous and acicular "galenobismutite" that have so far been analyzed turned out to be stibnite or one of the sulfosalts. According to Jensen (2009), analyses of a large number of samples from all levels of the mine never disclosed the presence of any bismuth bearing minerals. These findings do not necessarily discredit all earlier reports, since it has to be kept in mind that all parts of the deposit were mined long before the first specimens appeared on the western market in the early 1990s, that mineralization zoning is a common phenomenon in intrusion-related deposits, and thus a different mineral assemblage may have been found in parts that are now mined out. They indicate however, that bismuth minerals are rare at this locality, if they can still be found at all.
Quality of samples:not specified / average specimens
Rarity at site:Rare
Confirmation
Validity:Believed Valid
References
References:Yirang Chen (1981): Geology and Prospecting 17(2), 25-30; 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) The Yaogangxian mine, Hunan Province, China. Mineralogical Record 42:557-603.
Data
Mineral Data:Click here to view Galenobismutite data
Locality Data:Click here to view Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China
Mineral and/or Locality
Search Google
 
Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 16th Feb 2012 17:49:41
Mineral and Locality Search
Mineral:
and/or Locality:
Options
Fade toolbar when not in focusFix toolbar to bottom of page
Hide Social Media Links
Slideshow frame delay seconds