A Mica Garnet schist is a metamorphic rock formed from a shale or a granitic mother rock when this is squashed and heated at death in the crust.
Mica and garnet are commonly found in schist. Chloride is not typically found in schist; rather, it is often associated with evaporites or in hydrothermal systems.
Mica is formed by chemicals combining their industrial forces with fresh water and turning into thin breakable sheet rock.
A Mica Garnet schist is a metamorphic rock formed from a shale or a granitic mother rock when this is squashed and heated at death in the crust.
Gneiss is composed mainly of minerals such as quartz, feldspar, and mica. Other common minerals found in gneiss include garnet, hornblende, and biotite. The exact mineral composition of gneiss can vary depending on the specific conditions under which it formed.
Mica.
Gneiss contains the minerals mica, quartz, feldspar, amphibole, garnet, and pyroxene.
Garnet schist typically has a dark red or burgundy color due to the presence of garnet minerals. It is a foliated metamorphic rock with layers of garnet crystals intermixed with other minerals like mica, quartz, and feldspar. Garnet schist often has a shiny appearance and is commonly used in jewelry and decorative applications.
Garnet schist does not typically react with hydrochloric acid, as the garnet in the schist is a stable mineral that is not easily dissolved by acid. Schist is a metamorphic rock composed of minerals like mica, quartz, and feldspar that are generally resistant to chemical weathering.
Quartz Feldspar Mica Heavy minerals e.g Garnet/Zircons Bioclasts
Metamorphic rocks such as schist, gneiss, and some varieties of marble are likely to contain garnet as a common mineral. Garnet often forms in high-grade metamorphic environments where temperatures and pressures are elevated.
Black mica, also known as biotite, can be found with a variety of gems such as quartz, feldspar, and garnet in pegmatite rock formations. It is commonly associated with minerals rich in iron and magnesium.
# Quarts # Feldspar # Mica # Pyroxine # Olivine # Amphibole # Calcite # Clay (eg Illite) # Garnet