홈 > Term: polianite
polianite
A steel-gray dioxide of manganese, MnO2, crystallizing in the tetragonal system. It is distinguished from pyrolusite by its hardness and anhydrous character.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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