The gypsum Diaries

Hydrothermal anhydrite in veins is usually hydrated to gypsum by groundwater in around-surface area exposures. It is often connected with the minerals halite and sulfur. Gypsum is the commonest sulfate mineral.[seventeen] Pure gypsum is white, but other substances located as impurities might give an
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15