9.15 CT Natural Top Color Ametrine Gemstone

Item Information

Dimensions (mm) 15.5 x 10.5 x 6.6mm
Weight (carats) 9.15 carats
Colors
No Treatment

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 only in Bolivia.

The colour of the zones visible within ametrine are due to differing oxidation states of iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.

Artificial ametrine can be created by differential heat treatment of amethyst.

$55.00 USD

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Pricing & Details

Auction ID 742944
Watchers 0 watching
Viewed 231 times
Starts 26th Mar 2018 5:06pm PDT

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