What Is Granite Rock

However in the dimension stone trade the word granite is used for any feldspar bearing rock with interlocking crystals that are large enough to be seen with the unaided eye.

What is granite rock.

More than that granite is the signature rock of the planet earth itself. It forms from the slow crystallization of magma below earth s surface. 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 a light colored igneous rock with grains large enough to be visible with the unaided eye.

It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. 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. Easton in a bay area street paving and construction firm known as easton and wilson.

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. 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. 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.

Its three main minerals are feldspar quartz and mica which occur as silvery muscovite or dark biotite or both. Learn more about the properties and uses of granite in this article. 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. Like most cookware with granite in the name graniterock and granitestone cookware are ptfe products.

Strictly speaking granite is an. Granite rock company was founded on february 14 1900 by arthur roberts a r wilson and warren r. Pink granite sample approximately 1 3cm in size large crystals in this felsic plutonic rock what is 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.