Gypsum - Mined (Regular Grade) 40 lb Bag
SKU: 2750
$7.99Price
Excluding Sales Tax
*Sulfur-based calcium source.*Loosens clay soils.*10-15 pounds per 100 sf, mix into the soil. *Organic
What is it?
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk chalk.