Soil H2o probable checking: a gypsum block could be inserted in to the soil, and its electrical resistance is often measured to derive soil humidity.[48] Gypsum occurs in intensive beds affiliated with other evaporite minerals (e.g., anhydrite and halite), specifically in Permian and Triassic sedimentary formations; it is deposited from https://www.propanraya.com/id/produk/eco-gypsum-ee-4050