Coloradohound Posted January 18, 2019 Share Posted January 18, 2019 I was trying to figure out if this is chrysocolla are gem silica? I got some big pieces of it in Wyoming, dark green and almost missed it. I rough cut a small block and lightly sanded 1 side. 1 Quote Link to comment Share on other sites More sharing options...
d_day Posted January 18, 2019 Share Posted January 18, 2019 How hard is it? Quote Link to comment Share on other sites More sharing options...
Morlock Posted January 18, 2019 Share Posted January 18, 2019 Just based on the sheen, I'd say it's gem silica. imho.... Quote Link to comment Share on other sites More sharing options...
Jeff M Posted January 30, 2019 Share Posted January 30, 2019 (edited) Looks like chrysocolla/malachite to me. Gem silica is the same as chrysocolla except it has less inclusions and is more translucent. It is harder too since it has more silica (chalcedony) than malachite. Jeff M Edited January 30, 2019 by Jeff M Quote Link to comment Share on other sites More sharing options...
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