A wood substitute in the ancient earth: One example is, when Wooden grew to become scarce because of deforestation on Bronze Age Crete, gypsum was utilized in making construction at locations where by wood was Earlier utilized.[forty two] Crystal Program: Gypsum crystals belong towards the monoclinic crystal technique. This crystal https://www.propanraya.com/id/produk/eco-gypsum-ee-4050