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colemanite

[kohl-muh-nahyt] /ˈkoʊl məˌnaɪt/
noun
1.
a mineral, hydrous calcium borate, Ca 2 B 6 O 11 ⋅5H 2 O, occurring in colorless or milky-white crystals.
Origin of colemanite
named in 1884 after W. T. Coleman of San Francisco, in whose mine it was found; see -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for colemanite

colemanite

/ˈkəʊlməˌnaɪt/
noun
1.
a colourless or white glassy mineral consisting of hydrated calcium borate in monoclinic crystalline form. It occurs with and is a source of borax. Formula: Ca2B6O11.5H2O
Word Origin
C19: named after William T. Coleman (1824–93), American pioneer, owner of the mine in which it was discovered
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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