Gypsum Can be found in hydrothermal veins, which might be fractures in rocks full of mineral-prosperous fluids that originate from deep in the Earth's crust. Soil water opportunity checking: a gypsum block might be inserted in to the soil, and its electrical resistance may be calculated to derive soil moisture.[forty https://www.propanraya.com/id/produk/eco-gypsum-ee-4050