Ametrine

Ametrine is a macrocrystalline quartz -ortment that seldom happens in nature. For this gem to happen normally, iron pollutions blended in with the varying oxidation states are exposed to various temperatures. Temperatures should be a piece higher on a portion of the surfaces and somewhat cooler on others. The sensitive equilibrium of the two temperatures ought to be kept up with during the crystallization of the quartz stone.

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