Halite And gypsum equally form apparent crystals that are certainly smooth and are easily scratched. Licking a sample will swiftly distinguish the two, as halite has the identical composition as desk salt and an exceedingly unique ‘salty’ flavor. For those who dislike the idea of licking mineral samples, the two https://www.propanraya.com/id/produk/eco-gypsum-ee-4050