pyrrhotine

HYPHEN

pyr=rho=tine

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WORDNET DICTIONARY

Noun pyrrhotine has 1 sense

pyrrhotine(n = noun.substance) magnetic pyrites, pyrrhotite - a brownish iron sulfide mineral (FeS) having weak magnetic properties;

is a kind of mineral

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CIDE DICTIONARY

pyrrhotine, n. [Gr. flame-colored, fr. fire.].

A bronze-colored mineral, of metallic luster. It is a sulphide of iron, and is remarkable for being attracted by the magnet. Called also magnetic pyrites. [1913 Webster]