홈 > Term: fired stone
fired stone
Certain gems, e.g., zircon, topaz, or corundum, can be heated under controlled conditions to change their color to one that is more attractive.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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