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psilomelane |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Psilomelane \Psi*lom"e*lane\, n. [Gr. ? bare + ?, ?, black.] (Min.) A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color. From WordNet r 1.6 [wn]: psilomelane n : a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese
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