millerite

millerite
/mil"euh ruyt'/, n.
a mineral, nickel sulfide, NiS, occurring in slender, bronze-colored crystals: a minor ore of nickel.
[1850-55; Miller (see MILLER INDEX) + -ITE1]

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      a nickel sulfide mineral (NiS) found in carbonate veins, as at Keokuk, Iowa, or as an alteration product of other nickel minerals, as at Andreas-Berg, Ger. Other occurrences are in meteorites and as a sublimation product on Vesuvius. Millerite forms pale brass-yellow crystals that belong to the hexagonal system. For detailed physical properties, see sulfide mineral (table).

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Universalium. 2010.

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