Composition Of Marble And Granite

Luster hardness colors and variation are all indications of a stone s mineral composition and origin.

Composition of marble and granite.

This unique blend of characteristics is what makes natural stone a one of a kind beautiful and practical surface for your home marble limestone travertine onyx granite quartzite soapstone slate. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. 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. 38 42 lime cao 20 25 silica sio2 2 4 alumina al2o3 1 5 2 5 various oxides nao and mgo and 30 32.

Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar. Marble and granite countertops are made entirely of natural stone but quartz countertops have partial additives. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth. Commercial granite is an igneous or metamorphic stone that is mainly comprised of silica feldspar mica and quartz.

Though a very common rock granite is far from ordinary. Strictly speaking granite is an. Each material has its own grains flecks veins and color variations so style and. Granite is a very hard granular crystalline igneous rock which consists mainly of quartz mica and feldspar and is often used as building stone marble is a non foliated metamorphic rock which is composed of recrystallized carbonate which is formed when limestone is exposed to high temperatures and pressures over a long time 1 2 history.

Typically marble is composed of the following major constituents. Visually whereas granite reveals its mineral composition as a grainy blend of various colors marble is typically veiny instead. Learn more about the properties and uses of granite in this article. Also the mineral composition of marble predominantly calcite is such that the colors are typically lighter and more pastel with long thin sometimes dark streaks running through them.

The exact chemical composition of marble will greatly vary dependong on the location and the minerals or impurities present in the limestone during recrystallization. Marble marble has the vein pattern which also comes in different shapes sizes and colors. It has even started replacing marble because of its more durable qualities and resistance to weather and acid rain. The chemical composition as well as the formation of granite inside the earth s surface produces an incredible material that is valued for its looks and physical properties.

In the case of slabs sold for countertops there are many different minerals and stones sold as either granite or marble because they contain similar composition and characteristics.