A Wooden Substitute in the ancient entire world: By way of example, when wood became scarce due to deforestation on Bronze Age Crete, gypsum was employed in building design at spots in which wood was Beforehand employed.[forty two] Crystal Program: Gypsum crystals belong for the monoclinic crystal process. This crystal https://www.propanraya.com/id/produk/eco-gypsum-ee-4050