Selenite is a type Gypsum, The name ‘selenite’ is most commonly synonymous with gypsum but is more casually used to describe the transparent variety (satin spar).True Satin Spa is harder, clearer, and more crystalline than other types of gypsum.
Formula: CaSO4 · 2H2O Colour: Colourless, light tints due to included matter Lustre: Vitreous Hardness 2.24 to 2. *Please Note: This is a very soft and fragile stone, it can break and chip easily. Never cleanse it in water or salt. Do not store it along side other crystals, coins or other hard objects unless it is safely wrapped and protected.