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kainite

[kahy-nahyt, key-] /ˈkaɪ naɪt, ˈkeɪ-/
noun
1.
a mineral, hydrous sulfate of magnesium and potassium chloride, occurring in granular crystalline masses, a source of potassium salts.
Origin
1865-1870
1865-70; < German Kainit. See caino-, -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for kainite

kainite

/ˈkaɪnaɪt/
noun
1.
a white mineral consisting of potassium chloride and magnesium sulphate: a fertilizer and source of potassium salts. Formula: KCl.MgSO4.3H2O
Word Origin
C19: from German Kainit, from Greek kainos new + -ite1
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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Encyclopedia Article for kainite

a naturally occurring double salt, hydrated potassium and magnesium sulfate-chloride, KMgSO4Cl3H2O. It has been found only in potash deposits and is the principal constituent of the large salt deposits in middle and northern Germany. Water decomposes kainite to epsomite and sylvite. For chemical formula and detailed physical properties, see sulfate mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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