What Is The Mineral Composition Of Granite

Quartz content can range from 10 60 while the feldspar content typically ranges from 65 95 and biotite content is around 10 15 in most granite.

What is the mineral composition of granite.

Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. Granite s mineral composition is mainly quartz and feldspar. Accessory minerals of granite. It forms from the slow crystallization of magma below earth s surface.

Granite s mineral composition is mainly quartz and feldspar. Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. Zircon and apatite mainly as inclusions in biotite titanite orthite magnetite pyrite. Strictly speaking granite is an.

Granite is a strong stone because its mineral grains have grown tightly together during a very slow cooling period. This makes granite desirable for buildings and ornamental purposes such as gravestones and monuments. 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. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth.

The chemical composition of granite is typically 70 77 silica 11 13 alumina 3 5 potassium oxide 3 5 soda 1 lime 2 3 total iron and less than 1 magnesia and titania. Approximately 80 percent of this igneous rock is made up of these two minerals the other minerals found in granite are mica and amphibole. Additionally the quartz and feldspar that compose it are harder than steel. The common uses of granite are as building and decorative stones tiles kitchen counter ancient and modern sculptures fig.

Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar. The granite granodiorite diorite and gabbro are petrologically defined fundamentally with mineral composition as shown in table 4 1. Approximately 80 percent of this igneous rock is made up of these two minerals the other minerals found in granite are mica and amphibole. The resulting granite will likely have been made primarily from quartz different feldspars and biotite however it can also have a variety of other minerals and oxides present.

Other common minerals include mica muscovite and biotite and hornblende see amphibole. 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. Learn more about the properties and uses of granite in this article.