| pyrrhotite | <chemical> A bronze-coloured mineral, of metallic luster. It is a sulphide of iron, and is remarkable for being attracted by the magnet. Synonym: magnetic pyrites. Origin: Gr. Flame-coloured, fr. Fire. Source: Websters Dictionary (01 Mar 1998) |
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| pyrrhotite | a brownish iron sulfide mineral FeS having weak magnetic properties |
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