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Hasil cari dari kata atau frase: gray manganese ore (0.00836 detik)
Found 1 items, similar to gray manganese ore.
English → English
Definition: gray manganese ore
1. (Min.) One of the oxides of manganese; -- called also
gray manganese ore
. It occurs in brilliant steel-gray or
iron-black crystals, also massive.
2. (Chem.) A compound of manganese dioxide with a metallic
oxide; so called as though derived from the hypothetical