Gypsum Can be found in hydrothermal veins, that are fractures in rocks filled with mineral-abundant fluids that originate from deep inside the Earth's crust. Gypsum for soil cures this issue by breaking down compacted soil to allow good drainage and nutrient absorption, necessary in plant advancement.  Sodic Soil Reclamation: Gypsum https://www.propanraya.com/id/produk/eco-gypsum-ee-4050