Definition of kainite in English:

kainite

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

noun

  • 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.’

Origin

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