Helvite, Quartz

Locality: Kara-Oba W deposit, Betpakdala Desert (Bet-Pak-Dal Desert), Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan

10.8 x 8.4 x 6.5 cm. This specimen features a very large (for the locality) 8 mm, sharp helvite crystal included near the termination of a glassy, transparent to translucent cabinet quartz crystal. It is from the now-defunct Kara-Oba tungsten mine of Kazakhstan (mined for military supply once). The large quartz crystal is complete all-around, has contacting on only one side and has trivial edge wear for such a large crystal. This came from the Fersman Museum of Moscow back stock in the early 1990s, Dmitriy Belakovskiy, then a curator there on travel to the Houston Museum to support the Faberge exhibit.

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Photo added: 25th Nov 2008

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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.
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