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The Probert Encyclopaedia of Rocks & Minerals

EMERALD

Picture of Emerald

Emerald is a green precious stone variety of the mineral beryl. While pure beryl is colourless, the green of the emerald comes from various impurities in the stone. Brazilian emeralds usually contain calcite or pyrite, South African and Russian emeralds usually contain mica.
Research Emerald

 
 
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