Halite And gypsum the two sort apparent crystals that are quite soft and so are conveniently scratched. Licking a sample will promptly distinguish The 2, as halite has the identical composition as table salt and a very exclusive ‘salty’ style. For individuals who dislike the idea of licking mineral samples, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050
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