홈 > Term: tarnish
tarnish
A thin alteration film that forms on mineral surfaces, esp. on copper minerals, with color and luster different from that on fresh fractures.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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