Identify Some Common Rock-Forming Minerals.
Identify some common rock-forming minerals. Answer: 1. Quarts 2. Gypsum 3. Halite 4. Dolomite 5. Calcite 6. Mica 7. Clay 8. Olivine 9. Garnet Explanation: 1. Quarts - There are 5 thousand known minerals. Quarts is one of the most common and well known minerals. Composed of specific chemical compound such as silicon dioxide or silica and oxygen atoms. The chemical formula is SiO² its crystal system is Hexagonal. 2. Gypsum - The most common sulfate mineral. Composed of calsium sulfate dihydrate. Chemical formula for gypsum is CaSo⁴2H2O. Its crystal class is Prismatic. 3. Halite - Known as rock salt. Composed of sodium chloride. It forms isometric crystal with crystal system Cubic and chemical formula of NaCl. 4. Dolomite - is an anhydrous carbonate mineral which composed of calsium magnesium carbonate. Its chemical formula is CaMg(CO³) ². The crystal system is also Hexagonal with carbonate chemical classification and its colors are colorless, white, pink, green, gray, brown, and b...