Basalt Granite Definition

Strictly speaking granite is an igneous rock with between 20 and 60 quartz by volume and at least 35 of the total feldspar consisting of alkali feldspar although commonly the term granite is used to refer to a wider range of coarse grained igneous rocks containing quartz and feldspar.

Basalt granite definition.

Basalt extrusive igneous volcanic rock that is low in silica content dark in colour and comparatively rich in iron and magnesium. On the other hand granite is a very hard granular crystalline igneous rock which consists mainly of quartz mica and feldspar and is often used as building stone. See plate tectonics. Basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of earth.

Basalt is one of the most common types of rock on earth as well as other planetary bodies in the solar system. The general basalt and granite definition can be stated as. Basalt is an extrusive igneous rock whereas granite is an intrusive ingenuous rock. It contains mainly volcanic glass pyroxene and plagioclase feldspar and is fine grained.

While basalt rocks split along columnar planes granite rocks give way along horizontal planes. One other difference between basalt and granite pertains to the way these two types of rocks split when putting under pressure. It most commonly forms as an extrusive rock such as a lava flow but can also form in small intrusive bodies such as an igneous dike or a thin sill. Basalt is an igneous mafic and volcanic rock which is produced by lava flows in many different volcano types.

ˈ b æ s ɔː l t ˈ b æ s əl t is a mafic extrusive igneous rock formed from the rapid cooling of lava rich in magnesium and iron exposed at or very near the surface of a terrestrial planet or a moon. It has a composition similar to gabbro. Basalt is a dark colored fine grained igneous rock composed mainly of plagioclase and pyroxene minerals. A dark gray to black dense to fine grained igneous rock that consists of basic plagioclase augite and usually magnetite.

Granite is a very hard granular crystalline igneous rock which consists mainly of quartz mica and feldspar and is often used as building stone basalt is a common extrusive igneous rock formed by the rapid cooling of basaltic lava exposed at or very near the surface of earth 1 2 history 1 2 1 origin.