Main Characteristics Of Granite Rock

It forms from the slow crystallization of magma below earth s surface.

Main characteristics of granite rock.

Its strength makes it an excellent building material used in the past and in the present and it isn t very porous or affected by temperature. By comparing your rock sample with photographic examples you can identify key characteristics such as how the rock was formed what minerals and other materials it contains and where the rock may have come from. Igneous sedimentary or metamorphic. 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 very common type of rock that has been and is still used for a variety of purposes. Granite is one of the most beautiful natural stone materials you can find. The main minerals in true granite are silicates feldspar and quartz. The three main characteristic features of granite rock are.

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. Hardness durability and aesthetics. These features make granite pavers perfectly suited for architectural landscaping and pavement applications. Rocks with hardness 1 3 are soft rocks from 3 6 are medium hardness rocks and 6 10 are hard rocks.

Hardness of granite pavers. After granite blocks are cut down into granite slabs the slabs are shipped off to fabricators. Geologists classify rocks according to their minerals and origins while the stone industry is more concerned with how hard the stone is. Rocks are rated on the on the moh s hardness scale which rates the rocks on the scale from 1 to 10.

Granite characteristics include strength and durability. Its three main minerals are feldspar quartz and mica which occur as silvery muscovite or dark biotite or both. Granite is even incredibly resistant to weathering and chemical erosion even acid rain. Granite countertop characteristics.

Granite is a light colored igneous rock with grains large enough to be visible with the unaided eye. 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. The hardness of granite is 6 7 whereas its compressive strength is 175 00 n mm 2. Streak is the color of rock when it is crushed or powdered.

If it s not igneous it s not granite it contains quartz. In classifying igneous rocks significant 5 quartz is the defining characteristic. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.