Sunday, August 20, 2017

Cupric Garnet

Cupric Garnet
Chalcotrichite, Cupric Garnet, is an oxide of copper.  It is a secondary mineral which forms in the oxidized zone of copper sulfide deposits. It frequently occurs in association with native copper, azurite, chrysocolla, malachite, tenorite and a variety of iron oxide minerals.[4] It is known as ruby copper due to its distinctive red color. (Wikipedia)

Wikipedia says there is one place worldwide, Namibia, which had gem size crystals.  It has since been mined out.  The more prevalent crystals are obelisks, parallel, and tiny as shown above.

 
Cupric Garnet
I found it quite difficult to photograph.


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