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A white, gray, pink, or black mineral, MgSO4·KCl·3H2O, used as a fertilizer and a source of potassium compounds.
(Minerals) a white mineral consisting of potassium chloride and magnesium sulphate: a fertilizer and source of potassium salts. Formula: KCl.MgSO4.3H2O
[C19: from German Kainit, from Greek kainos new + -ite1]
kai•nite(ˈkaɪ naɪt, ˈkeɪ-)
a mineral, hydrous magnesium sulfate and potassium chloride, occurring in granular masses: a source of potassium salts.
[< German Kainit (1865) < Greek kain(ós) new, recent]
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|Noun||1.||kainite - a white mineral consisting of magnesium sulphate and potassium chloride; a source of potassium salts; used as a fertilizer|
atomic number 19, potassium, K - a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition