kainite
/ˈkaɪnaɪt/
noun
- A mineral composed of potassium and magnesium sulfates with potassium chloride, used as a fertilizer and in chemical manufacturing.
- The mine produced kainite for use in agricultural fertilizers.
- Kainite is often found in evaporite deposits alongside other salts.
- Farmers sometimes apply kainite to soil that lacks potassium and magnesium.