Foliated Metamorphic Rocks
Foliated approach the parallel association of certain mineral grains that gives the rock a striped appearance. Foliation paperwork while pressure squeezes the flat or elongate minerals within a rock so that they grow to be aligned. These rocks expand a platy or sheet-like structure that reflects the route that pressure become applied.
Blueschist
Blueschist is a type of metamorphic rock that forms under high-pressure, low-temperature conditions typically associated with subduction zones in tectonic plate boundaries. It is...
Amphibolite
Amphibolite, a rock composed in large part or dominantly of minerals of the amphibole institution. The term has been implemented to rocks of both igneous or metamorphic foundation. In igneous rocks, the term hornblendite is greater not unusual and restrictive; hornblende is the maximum not unusual amphibole and is traditional of such rocks.
Phyllite
Phyllite is a foliated metamorphic rock that has been low pressure and heat. Phyllite formation from slate that is further metamorphosed so that very fine grained mica mineral achives. It composed of mainly flake-shaped mica minerals. This mica minerals is strong parallel alignment, so easly to split into sheets or slabs. Also alignment of mica grains gives a reflective sheen on phyllite. Generally Phyllite is gray, black or greenish color and frequently weathers out of a tan or brown.
Gneiss
Gneiss is a foliated metamorphic rock ,Is a common dispensed type of rock shaped by high-grade regional metamorphic approaches from pre-current formations that have been initially both igneous or sedimentary rocks Gneiss, metamorphic rock that has a awesome banding, which is apparent in hand specimen or on a microscopic scale.
