Gypsum Also happens in crystal kind, Along with the two most frequent varieties currently being big obvious crystals that are often termed selenite, and fibrous crystals, often called satin spar. ‘Selenite’ is the Greek word for moon, and refers to the crystals effectively-designed pearl-like luster that could reflect a soft https://www.propanraya.com/id/produk/eco-gypsum-ee-4050