kernite

[kur-nahyt]

kern·ite

[kur-nahyt]
noun
a mineral, hydrated sodium borate, Na2B4O7⋅4H2O, occurring in transparent colorless crystals: the principal source of boron compounds in the U.S.

Origin:
1925–30; named after Kern County, California; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Kernite is always a great word to know.
So is zedonk. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
the offspring of a zebra and a donkey.
Collins
World English Dictionary
kernite (ˈkɜːnaɪt)
 
n
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 & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

kernite

borate mineral, hydrated sodium borate (Na2B4O74H2O), that was formerly the chief source of borax (q.v.). It forms very large crystals, often 60 to 90 centimetres (2 to 3 feet) thick; the largest observed measured 240 by 90 cm. The crystals are colourless and transparent but are usually covered by a surface film of opaque white tincalconite. Kernite is associated with other borate minerals as veins, irregular masses, and crystals embedded in shale, as in Kern County, Calif., and Catamarca province, Argentina. For detailed physical properties, see borate mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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