The Properties Of Granite Rock

Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar.

The properties of granite rock. It forms from the slow crystallization of magma below earth s surface. Igneous rocks are rocks that are formed by the cooling and solidification of magma or lava. Granite is a type of rock which is formed from lots of small particles. Granite is a hard igneous rock having a coarse grained surface chiefly composed of four minerals viz quartz alkali feldspar plagioclase feldspar and hornblende.

Learn more about the properties and uses of granite in this article. Streak is the color of rock when it is crushed or powdered. From this rock stone is cut for building purposes. Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye.

The hardness of granite is 6 7 whereas its compressive strength is 175 00 n mm 2. An introduction to the properties of granite and its uses. Rocks with hardness 1 3 are soft rocks from 3 6 are medium hardness rocks and 6 10 are hard rocks. Granite is the most common intrusive rock in earth s continental crust it is familiar as a mottled pink white gray and black ornamental stone it is coarse to medium grained.

Granite is a common coarse grained hard igneous rock consisting chiefly of quartz orthoclase or microcline and mica. 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. Kovler in toxicity of building materials 2012. 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.

This makes it very hard and strong. For countertops the granite blocks are cut into granite slabs. Hardness color fracture luster compressive strength etc. As compared to other rocks granite is more porous and its density is 2 65 2 75 g cm3.

These minerals provide the different colors to the granite that it possesses. Granite being an igneous rock is formed from the process of magma. Rocks are rated on the on the moh s hardness scale which rates the rocks on the scale from 1 to 10. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth.

Strictly speaking granite is an. Granite has been used as a building material since ancient times. What is an igneous rock. Some of the properties of granite include.

Its three main minerals are feldspar quartz and mica which occur as silvery muscovite or dark biotite or both. Chemical properties of granite. Granite is large and coarse grained. The study of properties of granite rock is done by mineralogists to determine the identity of rock.