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 black.

5. Calcite - This is the most common form of natural calcium carbonate. The chemical formula for this is CaCO³ and trigonal is its crystal system. The colors are colorless, white, gray, yellow and green.

6. Mica - The Mica is found in all three major kinds of rock. Igneous, sedimentary and metamorphic rock. The chemical formula is any of the group of hydrous, aluminum, potassium, silicate minerals. Its crystal system is monoclinic and colors are white, yellow, green and gray.

7. Clay - are hydrous aluminum phyllosilicate with a little amount of magnesium, alkali metals, alkaline earth, iron, and other cations found near earths surface.

8. Olivine - This is also one of the most common and a major rock forming minerals. It is a magnesium, iron silicate and has a Orthorhombic crystal system. The formula is (Mg,Fe)²SiO⁴. Colors are yellow-yellow green.

9. Garnet - is a group of silicate minerals. These are the kind of minerals that have been using as gemstone and abrasive since Bronze Age. The system crystal is isometric and the colors are nearly all colors but blue are very rare. 11.22.1.5

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