What Is Granite Rock

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.

What is granite rock.

Granite is a common type of granular and phaneritic felsic intrusive igneous rock granites depending on their mineralogy can be predominantly white pink or gray in colour. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth. Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. 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.

Learn more about the properties and uses of granite in this article. The definition of granite varies a geologist might define granite as a coarse grained quartz and feldspar bearing igneous rock that is made up entirely of crystals. 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. 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. Its three main minerals are feldspar quartz and mica which occur as silvery muscovite or dark biotite or both. Granite rock company was founded on february 14 1900 by arthur roberts a r wilson and warren r. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.

More than that granite is the signature rock of the planet earth itself. We make this clarification because unfortunately there is a lot of misinformation on the internet about nonstick cookware and about granite nonstick cookware in particular. Porter wilson was born in san francisco in 1866 graduated from mit with the class of 1890 and returned to california where he partnered with kimball g. Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar.

Easton in a bay area street paving and construction firm known as easton and wilson. Granite is the signature rock of the continents. It forms from the slow crystallization of magma below earth s surface. Strictly speaking granite is an.