The Formation Of Granite

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.

The formation of granite.

Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. 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. An igneous rock of volcanic origin granite is one of the hardest natural stones. Its three main minerals are feldspar quartz and mica which occur as silvery muscovite or dark biotite or both.

Each rock has a unique formation process. 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. Granite formation took place millions of years ago. It forms from the slow crystallization of magma below earth s surface.

More than that granite is the signature rock of the planet earth itself. Granite is the signature rock of the continents. Granite is a common type of granular and phaneritic felsic intrusive igneous rock. Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar.

Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. Strictly speaking granite is an. 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. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth.

Learn more about the properties and uses of granite in this article. The rocks in the earth s crust continuously undergo changes in their composition which leads to formation of other rocks. Granites depending on their mineralogy can be predominantly white pink or gray in colour. 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.