Gypsum also takes place in crystal sort, with the two most frequent types remaining large very clear crystals that are sometimes termed selenite, and fibrous crystals, called satin spar. ‘Selenite’ would be the Greek word for moon, and refers back to the crystals perfectly-produced pearl-like luster which can replicate a https://www.propanraya.com/id/produk/eco-gypsum-ee-4050