A beautiful piece of Ametrine with some very dark zones of Citrine which has been shaped into a heart and fitted to Sterling Silver.
Ametrine, also known as Trystine or by its trade name as Bolivianite, is a mixture of amethyst and Citrine. Almost all commercially available Ametrine is mined in Bolivia, although there are deposits being exploited in Brazil and India.
The color 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.