An Unbiased View of gypsum
Hydrothermal anhydrite in veins is usually hydrated to gypsum by groundwater in near-surface exposures. It is frequently linked to the minerals halite and sulfur. Gypsum is the commonest sulfate mineral.[17] Pure gypsum is white, but other substances found as impurities may give an array of colours to area deposits.Agriculture: Soil Conditioner: Gy