Cleavage: Cleavage refers to a mineral's inclination to interrupt along precise planes of weakness. Gypsum reveals fantastic cleavage in one course and fantastic cleavage in An additional direction. This permits it to break into predictable flat or somewhat angled pieces. Above geological time scales, these crystals accumulate, forming huge deposits https://www.propanraya.com/id/produk/eco-gypsum-ee-4050