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Gem Silica, Malachite : Cu2(CO3)(OH)2, Quartz : SiO2

Copyright © Rob Lavinsky & irocks.com
 
 
minID: 785-Y5L

Gem Silica, Malachite : Cu2(CO3)(OH)2, Quartz : SiO2

Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 13.5 cm x 9.6 cm x 6.3 cm

13.5 x 9.6 x 6.3 cm. A gorgeous polished nodule of gem grade carving rough of the best color of "gem silica," chrysocolla and quartz mixed together along with malachite (the malachite in the form of needle-like inclusions). This is classic old material for the mine. The colors here are both particularly intense and contrasting. From the Rice Northwest Museum collection, originally donated by its founders Richard and Helen Rice (cat #207). Weight is 2 pounds. Ex. Frank Valenzuela Collection. Joe Budd photo.


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Photo added: 27th Mar 2011