Chemical Formula Of Granite Rock

Granite is a plutonic igneous rock.

Chemical formula of granite rock.

Granite is the typical type of plutonic rocks it consists of feldspar quartz a few dark colored mineral sand mica. The characteristics of the granite are as following. Chemical properties of granite granite is a hard igneous rock having a coarse grained surface chiefly composed of four minerals viz quartz alkali feldspar plagioclase feldspar and hornblende. These other minerals include mica amphibole hornblende biotite and muscovite.

Other minerals can give granite its great variety of colors and textures. However granite is composed mainly of the minerals potassium feldspar quartz hornblende and micas which are in turn composed of varying amounts of the elements silicon oxygen aluminum. These minerals provide the different colors to the granite that it possesses. The exact chemical composition will vary greatly but there is an average chemical composition for granite.

Granite is a hard coarse grained rock making up most of the earth. Volcanic rock of equivalent chemical. The main chemical propositions of the granite are sio2 65 70 a little of al 2 o 3 cao mgo and fe 2 o 3 thus the granite is acid rock. It consists chiefly of three minerals.

Sio2 72 04 silica al2o3 14 42 alumina. Quartz alkali feldspar which contain alum. Sedimentary rocks formed by burial compression and chemical modification of deposited weathered rock debris or sediments at the earth s surface. 70 18 silicon dioxide sio2 14 47 aluminum oxide al2o3 4 11 potassium oxide.

This composition is as follows. 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. A worldwide average of the chemical composition of granite by weight percent based on 2485 analyses.