Transparency: Gypsum Can vary from clear to translucent, based on the crystal formation and presence of inclusions. Clear crystals let light to pass through Plainly, while translucent specimens let some gentle passage but seem cloudy or hazy. Gypsum happens in considerable beds associated with other evaporite minerals (e.g., anhydrite and https://www.propanraya.com/id/produk/eco-gypsum-ee-4050