slgwv's photos with the keyword: chrysocolla
Bull quartz
29 May 2014 |
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From the waste dump at the Richmond Canyon mine, Berlin-Ichthyosaur State Park, Nevada, USA. The green appears to be malachite (a copper carbonate) and/or chrysocolla (a copper silicate). Elsewhere they say that the original processing in Ione failed due to the copper content; here's why! Probably they were trying amalgamation; the ore should have later been workable with cyanide.
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