What Is Granite Rock Made Of

The granite is called an igneous rock derived from a latin word ignis meaning fire.

What is granite rock made of.

Strictly speaking granite is an igneous rock with between 20 and 60 quartz by volume and at least 35 of the total feldspar consisting of alkali feldspar although commonly the term granite is used to refer to a wider range of coarse grained igneous rocks containing quartz and feldspar. Granite is composed mainly of quartz and feldspar with minor amounts of mica amphiboles and other minerals. Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. These minerals and their variation in abundance and alteration give granite the numerous colors and textures we see in granite countertops.

First granite is made of large mineral grains its name is latin for granum or grain that fit tightly together. Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar. Learn more about the properties and uses of granite in this article. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth.

This mineral composition usually gives granite a red pink gray or white color with dark mineral grains visible throughout the rock. Granite contains several minerals of which quartz feldspar and mica are the three main components. Granite is an igneous rock made up of primarily quartz feldspar micas amphiboles and a mixture of additional trace minerals. The geologic process that occurs to create granite happens slowly over time.

It forms from the slow crystallization of magma below earth s surface. Granite is also well known from its many world famous natural exposures.