kainite
/ˈkaɪnaɪt/noun
mass noun
- a white mineral consisting of a double salt of hydrated magnesium sulphate and potassium chloride钾盐镁矾（一种含有重盐水合硫酸镁和氯化钾的白色矿物质）。
词源
mid 19th cent.: from German Kainit, from Greek kainos 'new, recent', because of the mineral's recent formation.