Definition of kainite in English:


Pronunciation /ˈkīnīt/ /ˈkaɪnaɪt/ /ˈkānīt/ /ˈkeɪnaɪt/


  • A white mineral consisting of a double salt of hydrated magnesium sulfate and potassium chloride.

    ‘An aqueous solution of kainite contains nothing except potash which, upon evaporation with platinum chloride, forms a compound which is insoluble in alcohol and the ammonium chloride wash ordinarily used in potash determinations.’
    • ‘This would have meant that the evaporation stopped at the kainite crystallization point.’


Mid 19th century from German Kainit, from Greek kainos ‘new, recent’, because of the mineral's recent formation.