Rock Forming Minerals

• Biotite


  found in metamorphic and igneous rocks, with a sheet-like structure and weak bonds between layers
• Muscovite


  mineral easily identified because its perfect cleavage allows it to be split into thin, flexible, elastic, colorless, transparent sheets with a pearly to vitreous luster
• Calcite


  A member of the calcite group, which includes minerals such as aragonite and vaterite
• Garnet


  A collection of silicate minerals with similar crystal structures but different chemical compositions
• • Biotite is a highly abundant mineral found in a wide range of igneous and metamorphic rocks.
• Biotite minerals are known for their perfect basal cleavage allowing them to easily separate into thin folia.
• Muscovite is transparent to translucent and usually occur as thin flakes or thicker 'books' of many flakes thickness.
• Muscovite is often formed in metamorphic rocks under low pressure and high temperature conditions, such as schists and gneisses.
• Muscovite is used for

  Paint, plastics, rubber, asphalt roofing, cosmetics
• Formation of calcite Precipitation from aqueous solutions, biogenic processes, metamorphism
• calcite occurence is in Sedimentary environments, metamorphic environments.
• • Garnets are often formed in metamorphic rocks under high pressure and high temperature conditions.
• • Garnets are typically found in metamorphic rocks, which are rocks that have undergone significant changes due to intens heat and pressure.