The 5-Second Trick For gypsum
Hydrothermal anhydrite in veins is often hydrated to gypsum by groundwater in in close proximity to-area exposures. It is often affiliated with the minerals halite and sulfur. Gypsum is the commonest sulfate mineral.[seventeen] Pure gypsum is white, but other substances uncovered as impurities may well give a variety of colours to nearby deposits.G