The Process Of Granite Formation

Each rock has a unique formation process.

The process of granite formation.

Formation of granite is explained below. Granite is formed by the solidification of magma under the earth s surface. The rocks in the earth s crust continuously undergo changes in their composition which leads to formation of other rocks. Granite crystallizes from silica rich magmas that are miles deep in earth s crust.

Granite is actually made up of several different minerals including feldspar and quartz. Since the time required to form granite is rather long it is both a strong and valuable stone. To form granite magma must first cool underground. Generally the slower the molten rock cooled the larger it s mineral crystals with k feldspar megacrysts forming in special circumstances greater than 5cm.

Granite is an intrusive igneous rock which means it was formed in place during the cooling of molten rock. Granite is more common in continental crust than in oceanic crust and has a felsic composition. The decaying material releases a significant amount of heat which melts the rocks around it. Many mineral deposits form near crystallizing granite bodies from the hydrothermal solutions that such bodies release.

The name appeared for the first time in works of the english botanists physician and philosopher caesalpinus in the 16th century. This is an extremely slow process.