Is Granite Porous Geology

Granite is a rock with interlocking grains.

Is granite porous geology.

Multiple definitions of granite. Strictly speaking granite is an. M type mantle granites are rarer and are thought to have evolved directly from deeper melts in the mantle. And the definition of granite expands wildly when used by people who sell dimension stone such as countertops tile and building veneer.

In geology granite is one specific thing. This means that if it is not properly sealed liquid is able to penetrate its surface. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. The word granite is used in a variety of ways by different people.

As previously mentioned granite is of an igneous nature which makes it less porous than sedimentary rocks such as limestone and travertine. An igneous rock that is coarse grained and overall light colored. Other types of rock have rounded grains. But in the parlance of the natural stone industry the definition of granite is expanded to include all igneous rocks as well as many metamorphic rocks like gneiss and schist.

So porous rocks tend to be softer than non porous rocks. Any unique combination of chemical composition mineralogy grain size texture or other distinguishing characteristics can describe a rock type. Felsic rocks are less dense than mafic and ultramafic rocks and thus they tend to escape subduction whereas basaltic or gabbroic rocks tend to sink into the mantle beneath the granitic rocks of the continental cratons. 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.

I type igneous granites appear to arise from the melting of preexisting igneous rocks s type sedimentary granites from melted sedimentary rocks or their metamorphic equivalents in both cases. A more precise definition is used by petrologists geologists who specialize in the study of rocks. Even worse germs bacteria and mold can invade unsealed granite counter tops with stains running not far behind. Also granite is immune from the damages of most common household acids.

A simple definition is used in introductory courses. Sandstone is a rock with rounded grains. Like all natural stone granite is susceptible to liquid sinking into its surface. Granite is a porous natural stone.

The following is a list of rock types recognized by geologists there is no agreed number of specific types of rocks. Students of granites classify them in three or four categories. In the case of marble which is metamorphic as well as sedimentary porosity can be considerably higher when compared to granite up to 2 percent. If liquid or stains get down into the stone it can result in damages and weakening of your granite.