The Formation Of Granite

It forms from the slow crystallization of magma below earth s surface.

The formation of granite.

There are a variety of granite uses and the granite reserves are found in many countries around the world. Granite is the signature rock of the continents. Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar. Its three main minerals are feldspar quartz and mica which occur as silvery muscovite or dark biotite or both.

The other rocky planets mercury venus and mars are covered with basalt as is the ocean floor of earth but only earth has this beautiful and interesting rock type in abundance. Each rock has a unique formation process. More than that granite is the signature rock of the planet earth itself. Granite is the most common intrusive rock in earth s continental crust it is familiar as a mottled pink white gray and black ornamental stone it is coarse to medium grained.

It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth. In reference to the coarse grained structure of such a holocrystalline rock the word granite comes from the latin granum a grain. Granite is a common type of granular and phaneritic felsic intrusive igneous rock. During its formation mineral gases and liquids create crystalline formations giving it a stunning array of colors.

Learn more about the properties and uses of granite in this article. Strictly speaking granite is an. The rocks in the earth s crust continuously undergo changes in their composition which leads to formation of other rocks. Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye.

Granite is composed mainly of quartz and feldspar with minor amounts of mica amphiboles and other minerals this mineral composition usually gives granite a red pink gray or white color with dark mineral. Granites can be predominantly white pink or gray in color depending on their mineralogy the word granite comes from the latin granum a grain in reference to the coarse grained structure of such a completely crystalline rock. Granite is an intrusive igneous rock which means it was formed in place during the cooling of molten rock generally the slower the molten rock cooled the larger it s mineral crystals with k feldspar megacrysts forming in special circumstances greater than 5cm. Granite formation took place millions of years ago.