Is Granite Metamorphic Or Igneous Rock

Based on the mode of formation three major groups of rocks are defined.

Is granite metamorphic or igneous rock.

Compact metamorphic rock that evolved from limestone rocks subjected to high temperature and pressure. However some granite has no contact with surrounding wall rock so it must have gradually degraded into metamorphic rock. Its basic component is calcium carbonate. Granite is an igneous rock that forms when magma cools relatively slowly underground.

It forms from the slow crystallization of magma below earth s surface. It is usually composed primarily of the minerals quartz feldspar and mica. Igneous metamorphic and sedimentary rocks hold the history of the earth and the materials that will be used to build its future. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.

The scientific study of rocks is called petrology. 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. Examples of metamorphic rocks.

When granite is subjected to intense heat and pressure it changes into a metamorphic rock called gneiss. Composed of quartz feldspar and mica. Others show relic features found in sediments. Granite type rocks granitoids are abo.

The existing rock type which undergoes a change is referred to as the protolith. Igneous rocks solidified from magma and lava. Some granite is the oldest known rock on earth. Uses of granite the rock used everywhere from the kitchen to the facing stone of skyscrapers.

This evidence suggests that some granite is not igneous in origin but metamorphic. Rocks are an aggregate of one or more minerals held together by chemical bonds. Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. Slate is another common metamorphic rock that forms from shale.

Feldspar and quartz are the most common minerals found in rocks. Igneous sedimentary and metamorphic. Its composition is equal to that of granite but forms alternating layers of clear and dark minerals. Hence the study of metamorphic rocks provides an understanding of the pressure and temperatures deep within the earth s crust.

Igneous and sedimentary rocks mainly undergo this change and become metamorphic rocks. Partial melt granitic type rocks are granitic gneiss which is a metamorphic rock.