from The Century Dictionary.

  • noun A hydrated phosphate of calcium found in the guano of Aves Islands and Sombrero in the West Indies, in slender monoclinic crystals of a pale-yellow color.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Min.) A white or gray crystalline mineral consisting of the acid phosphate of calcium.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mineralogy A mineral formed by the interaction of guano with calcite and clay at a low pH, believed to be a precursor of apatite.


from Wiktionary, Creative Commons Attribution/Share-Alike License

Brush +‎ -ite after American mineralogist George Jarvis Brush (1831-1912).


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  • The mineralogists were right, about the shite.

    See also metabrushite.

    January 4, 2012