Home > Term: pyrolusite
pyrolusite
A tetragonal mineral, MnO2; rutile group; trimorphous with akhtenskite and ramsdellite; soft; metallic; steel gray; massive or reniform; a source of manganese. Compare: psilomelane gray manganese ore.
- Ordklass: noun
- Bransch/domän: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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