Inclusions: Purely Natural gypsum crystals frequently incorporate inclusions, which can be foreign minerals or resources trapped within the crystal framework through development. Popular inclusions in gypsum could be clay minerals, iron oxides that trigger coloration, or simply very small gas bubbles. Gypsum is considered non-harmful, but extended publicity to dust https://www.propanraya.com/id/produk/eco-gypsum-ee-4050
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