kainite /ˈkʌɪnʌɪt 
, ˈkeɪnʌɪt / ▸ noun [mass noun] a white mineral consisting of a double salt of hydrated magnesium sulphate and potassium chloride. – ORIGIN mid 19th century: from German Kainit, from Greek kainos ‘new, recent’, because of the mineral's recent formation.
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