Gypsum also happens in crystal type, While using the two most typical varieties getting big obvious crystals that tend to be termed selenite, and fibrous crystals, referred to as satin spar. ‘Selenite’ is the Greek term for moon, and refers to the crystals perfectly-produced pearl-like luster that may mirror a https://www.propanraya.com/id/produk/eco-gypsum-ee-4050