Organic ultra-fine premium powdered gypsum. Water soluble. Naturally mined. Naturally mined gypsum is considered an allowed non-synthetic input for crop use according to National Organic Program (NOP) regulations. Natural gypsum is also listed generically as acceptable in the Organic Materials Review Institute (OMRI) handbook.
- Calcium (Ca): 21%
- Sulfur (S): 16%
- pH: 7.25
- Density per cubic foot: 51 lbs
- Particle size: powder
Sold in ½ gallon increments.
