Because it is commonly speckled black and white, it is often referred to as "salt and pepper" rock. The specimen shown above is about two inches (five centimeters) across. Diorite is an intrusive igneous rock of intermediate composition. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Examples of intrusive igneous rocks are diorite, gabbro, granite, pegmatite, and peridotite. Intrusive, or plutonic, igneous rocks form when magma cools slowly below the Earth's surface. Granite is a coarse-grained, light-colored, intrusive igneous rock that contains mainly quartz, feldspar, and mica minerals. Although often similar in appearance to diorite or granite, it has a higher quartz content than diorite, and a higher mafic mineral content than granite. • Cooling Rate: rapid, extrusive • Intrusive Equivalent: diorite or gabbro • Other Characteristics: vesicular, but denser and darker with larger vesicles. Diorite (/ ˈ d aɪ. Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene.
In areas where diorite occurs near the surface, it is sometimes mined for use as a crushed stone.It has a durability that compares favorably to granite and trap rock.It is used as a base material in the construction of roads, buildings, and parking areas. Mineral Photos courtesy of R.Weller/Cochise College.
Intrusive igneous rocks crystallize below Earth's surface, and the slow cooling that occurs there allows large crystals to form. Intrusive Igneous Rocks. Examples of intrusive igneous rocks are diorite, gabbro, granite, pegmatite, and peridotite. An intrusive ultramafic plutonic rock. The mineral composition is primarily composed of … They are both coarse-grained intrusive igneous rocks
diorite intrusive or extrusive Definition of Carbonatite and Diorite. The general Carbonatite and Diorite definition can be stated as: Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals.
Diorite is a coarse-grained, intrusive igneous rock that contains a mixture of feldspar, pyroxene, hornblende, and sometimes quartz. Diorite is a relatively rare rock that is gray or dark-gray in color, with coarse grains. ə ˌ r aɪ t /) is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene. Uses of Diorite. The chemical composition of diorite is intermediate between gabbro and granite. ə ˌ r aɪ t /) is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene.
Intrusive vs Extrusive Rocks The key difference between intrusive and extrusive rocks is that the intrusive rocks are formed from magma whereas the extrusive rocks are formed from lava. Some examples of intrusive igneous rocks are granite, diorite, syenite, gabbro and pyroxenite.
It is the intrusive equivalent of the extrusive andesite.
Diorite is …
Scotland, Norway). Peridotite. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Granodiorite is an intrusive igneous rock in composition intermidiate between diorite and granite. It is produced in volcanic arcs, and in mountain building where it can occur in large volumes as batholiths in the roots of mountains (e.g. Diorite (/ ˈ d aɪ. The chemical composition of diorite is intermediate, between that of mafic gabbro and felsic granite.