The Formation Of Granite

Granite crystallizes from silica rich magmas that are miles deep in earth s crust.

The formation of granite.

Since the time required to form granite is rather long it is both a strong and valuable stone. 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 formed by the solidification of magma under the earth s surface. They are crystallized by felsic melts that are less dense than mafia rocks and therefore tend to ascend to the surface.

Of these minerals feldspar predominates and quartz usually accounts for more than 10 percent. The alkali feldspars are often pink resulting in the pink granite often used as a decorative stone. There are a variety of granite uses and the granite reserves are found in many countries around the world. Granite is more common in continental crust than in oceanic crust and has a felsic composition.

Each rock has a unique formation process. This is an extremely slow process. The rocks in the earth s crust continuously undergo changes in their composition which leads to formation of other rocks. Granite formation took place millions of years ago.

Stoping where the granite cracks the wall rocks and pushes upwards as it removes blocks of the.