Gypsum happens in two key versions as white earthy masses or as obvious crystals. In crystal type, its softness and one excellent cleavage with two a lot less well-developed cleavage directions generally serve to tell apart gypsum from other comparable-on the lookout minerals. Soil h2o opportunity monitoring: a gypsum block https://www.propanraya.com/id/produk/eco-gypsum-ee-4050