Gypsum Occurs in two most important versions as white earthy masses or as distinct crystals. In crystal form, its softness and solitary fantastic cleavage with two significantly less very well-created cleavage directions commonly serve to distinguish gypsum from other similar-on the lookout minerals. Insulation: Gypsum has good thermal insulating Attributes, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050
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