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Crossword clue: a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese

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psilomelane 11 letters wn-def

a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese

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Similar clues

a black mineral consisting of basic manganese oxide; a source of manganese 67% similar → manganite

Related clues

A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color.