manganosite

noun man·ga·no·site \ ˌmaŋgəˈnōˌsīt , manˈganəˌ- \

Definition of manganosite

plural -s
: a mineral MnO consisting of manganous oxide occurring in small emerald green octahedrons that turn black on exposure (hardness 5–6, specific gravity 5.18)

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Origin and Etymology of manganosite

German manganosit, from mangan- + connective -s- + -it -ite


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