The selenite variety of gypsum [hydrous calcium sulfate, CaSO4•2H2O] crystallizes in the monoclinic system as prismatic or bladed crystals with distinct rhombic form, and as arrowhead-shaped twins with beveled edges. Pure selenite is colorless or white, but impurities create a range of pale grays, yellows, reds, and browns. Selenite, along with other forms of gypsum, is used in plaster, soil conditioners, paint fillers, cement retardants, and drywall products.
We offer selenite in both rough and crystalline form.
Calcium Oxide 32%
Sulphuric Anhydride as So3 46%
Calcium Sulphate 77%
Calcium Sulphate Dihydrate 98.5%
Combined Water 20%