Heat Treatment
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Definition
The controlled heating of a gemstone to high temperatures to improve or alter its color, clarity, or both, by inducing or dissolving inclusions and changing trace element oxidation states.
Detailed Explanation
将宝石控制加热至高温，通过诱发或溶解内含物、改变微量元素氧化态，从而改善或改变颜色、净度或两者兼有。