kernite
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kern·ite
(kûr′nīt′)n.
A colorless to white lustrous crystalline mineral, Na2B4O7·4H2O, that is a major source of ore of boron.
[After Kern, a county of southern California.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
kernite
(ˈkɜːnaɪt)n
(Minerals) a light soft colourless or white mineral consisting of a hydrated sodium borate in monoclinic crystalline form: an important source of borax and other boron compounds. Formula: Na2B4O7.4H2O
[C20: from Kern County, California, where it was found + -ite1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
kern•ite
(ˈkɜr naɪt)n.
a mineral, hydrated sodium borate, Na2B4O7∙4H2O, occurring in colorless crystals: the principal source of boron.
[1925–30; after Kern County, Calif.; see -ite1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| Noun | 1. | kernite - a light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron atomic number 5, boron, B - a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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