Wednesday, 20 April 2011

Amethyst (Quartz)

Amethyst is a crystalline quartz. The color is usually shade purple, lilac, or mauve. This gems is traditionally used to protect the owner from drunkenness. Amethyst is found in alluvial deposits or in geodes. Some country that have many deposit of amethyst are Brazil, Indonesia (Borneo), Russia, Germany, USA, Australia, etc   

Some Amethyst are heat-treated to change the color into yellow, that yellow amethyst called Citrine.

Crystal Structure

Silicon dioxide


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