slgwv's photos with the keyword: chrysocolla

Bull quartz

29 May 2014 237
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.