kainite /ˈkīnīt, , ˈkaɪnaɪt 
, ˈkānīt, ˈkeɪnaɪt / ▸ noun a white mineral consisting of a double salt of hydrated magnesium sulfate and potassium chloride.
– ORIGIN mid 19th century : from German Kainit, from Greek kainos ‘new, recent’, because of the mineral's recent formation.
EnglishOxford New American Dictionary
