Is Granite A Sedimentary Rock

Gneiss however is distinguished from granite by its strong fabric and alternating dark and light colored bands.

Is granite a sedimentary rock.

Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. Much of it was intruded during the precambrian age. Granite is an intrusive igneous rock which means it was formed in place during the cooling of molten rock. Granite containing rock is widely distributed throughout the continental crust.

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. It is the most abundant basement rock that underlies the relatively thin sedimentary veneer of the continents. Formally granite is a plutonic rock that is composed of between 10 to 50 quartz typically semi transparent white and 65 to 90 total feldspar typically a pinkish or white hue. In general terms granite is an igneous rock.

Granite is not the kind of rock that would form into sandstone. A rock with a similar composition and appearance as granite gneiss can form through long and intense metamorphism of sedimentary paragneiss or igneous rocks orthogneiss. It forms from the slow crystallization of magma below earth s surface. But there has been a famous debate over the years because extreme metamorphosis of crustal sediments can produce melts of rocks that are also granite.