Transparency: Gypsum Can range from clear to translucent, depending upon the crystal development and existence of inclusions. Transparent crystals allow for gentle to pass through Plainly, though translucent specimens allow for some mild passage but show up cloudy or hazy. Gypsum is calcium sulfate, a Obviously happening mineral. It's been https://www.propanraya.com/id/produk/eco-gypsum-ee-4050