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Table of Contents -- psilomelane POS
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WORDNET DICTIONARY
CIDE DICTIONARY

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psilomelane

Noun

psi=lom=e=lane

WORDNET DICTIONARY

psilomelane(n = noun.substance) - a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese;

psilomelane, n. [Gr. bare + , , black.].

A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color. [1913 Webster]