Gypsum also takes place in crystal sort, While using the two most popular varieties staying big crystal clear crystals that in many cases are termed selenite, and fibrous crystals, called satin spar. ‘Selenite’ is definitely the Greek word for moon, and refers back to the crystals well-developed pearl-like luster that https://www.propanraya.com/id/produk/eco-gypsum-ee-4050