noun
- A mineral salt containing potassium chloride and magnesium sulfate, used as a fertilizer and source of potassium compounds.
Usage: technical; also spelled 'kainite'
Examples
- Kainit is mined in several countries and processed for agricultural use.
- The fertilizer industry relies on kainit as a source of potassium.
- Kainit deposits are found in ancient salt beds.
- Farmers apply kainit to improve soil nutrient content.