Helvite, Quartz (Var: Smoky Quartz), Albite

Locality: Glens Peak, Sawtooth Batholith/Sawtooth Mts, Boise Co., Idaho, USA

Helvite terahedrons on matrix of white albite and smoky quartz crystals; found west of Glens Peak. Overall size 3.6 x 3.3 x 2.3 cm. This and other similar specimens were found by some one else who cleaned out a miarolitic cavity on a large boulder of granite; they kept the smoky quartz but left me a number of large helvites on top of the boulder; the easiest collecting I've ever experienced!

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Photo added: 15th May 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.
Current server date and time: 15th Feb 2012 17:46:44