Description
GEM SILICA
Gem silica is a bluish green to greenish blue variety of chalcedony that receives its vivid color from the presence of copper. It is often known as “chrysocolla chalcedony” or “gem silica chrysocolla.” … That is because it is a very rare gem.
Mined in Brazil
![25.11 CTS GEM SILICA FROM BRAZIL -ROUGH [F8647]](https://www.opalrayjewelry.com/wp-content/uploads/2025/12/25-11-cts-gem-silica-from-brazil-rough-f8647-etpmrdys54914.webp)




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