Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of quartz. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined in Bolivia, although there are deposits being exploited in Brazil and India.
|Color||Purple and Yellow or Orange|
|Mohs scale hardness||7.0|
|Specific gravity||2.6 - 2.7|