from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A manganese sulfide mineral, MnS2, that forms reddish-brown or black octahedral crystals.

from the GNU version of the Collaborative International Dictionary of English

  • n. Native sulphide of manganese, a reddish brown or brownish black mineral.

from The Century Dictionary and Cyclopedia

  • n. Native manganese disulphid occurring in reddish-brown isometric crystals, isomorphous with pyrite.


Hauer +‎ -ite, after Austrian geologists Joseph and Franz Ritter von Hauer. (Wiktionary)


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