홈 > Term: black cobalt
black cobalt
A hexagonal mineral, (Co,Ni)1-y(MnO2)2-x(OH)2-2y+2x.nH2O ; a soft, black, earthy aggregate commonly classed as a variety of "wad," the cobalt content reaching as high as 32% (40% cobalt oxide).
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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