|Dimensions (mm)||not provided|
|Weight (carats)||not provided|
MINERAL GEM WORLD
This is a natural untreated rough crystal of ametrine rough from Bolivia .It has some stunning crystal formations making this a top collectos specimen.
Weight 1650 cts app.
Size 155X56X36 mm app
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 Bolivia although there are deposits being exploited in Brazil and India
The colour of the zones visible within ametrine is due to differing oxidation states iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.
|Starts||19th Sep 2017 4:02pm PDT|
|Ends||20th Sep 2017 4:00pm PDT|
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