Helvite and smoky quartz vug

Locality: Benedict Creek area (Devil's Den), Sawtooth Batholith/Sawtooth Mts, Boise Co., Idaho, USA

A typical Sawtooth batholith miarolitic cavity; screwdriver for scale. This vug contained a few specimens of smoky quartz and albite; when I got them home, I found a nice tetrahedron of brown helvite on one matrix. Photo taken July 1994.

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Photo added: 28th 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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