Amethyst

 

Amethyst 

Amethyst is a well known mineral and gemstone. It is the purple variety of the mineral Quartz, and its most Amethyst faceted Julmar 4 Hervaluable and prized variety. Its name derives from the Greek "amethystos", which means "not drunken", as Amethyst in antiquity was thought to ward off drunkenness.

 Amethyst crystal Julmar 4 Her

The color of some Amethyst specimens from certain localities slowly fade upon prolonged exposure to light. When used as a gemstone, Amethyst is often heat treated to deepen the color, or to transform it into "Citrine". Some varieties may also change to a light green color, which is given the trade name "Prasiolite", or "Green Amethyst", as it is more commonly known in the gem trade.
 

Article supplied by Minerals.net

 

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