Home > 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.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
