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Diorite is one of the major igneous rock types. ... Diorite is a plutonic rock that is something between a granite and a gabbro. It consists mostly of white plagioclase feldspar and black hornblende. (more below)
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geology.about.com/od/rocks/ig/igrockindex/rocpicdiorite...
geology.about.com/od/rocks/ig/igrockindex/rocpicdiorite.htm
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Diorite has about the same structural properties as granite but, perhaps because of its darker colour and more limited supply, is rarely used as an ornamental and building material. It is one of the dark gray rocks that is sold commercially as black granite.
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geology.csupomona.edu/alert/igneous/diorite.htm
geology.csupomona.edu/alert/igneous/diorite.htm
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Britannica online encyclopedia article on diorite (rock), medium- to coarse-grained intrusive igneous rock that commonly is composed of about two-thirds plagioclase feldspar and one-third dark-coloured minerals, such as hornblende or biotite. ... Diorite has about the same structural properties as granite but,
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www.britannica.com/EBchecked/topic/164383/diorite
www.britannica.com/EBchecked/topic/164383/diorite
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Historic use of diorite ... Diorite is an extremely hard rock, making it difficult to carve and work with. It is so hard that ancient civilizations (such as Ancient Egypt ... -- listed the taking of diorite as a purpose of military expeditions. Although one can find diorite art from later periods, it became more popular as...
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www.absoluteastronomy.com/topics/Diorite
www.absoluteastronomy.com/topics/Diorite
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Diorite solid surface supply Diorite and Technistone surfaces for countertops, worktops, floors, sinks and more. Our surfaces are suitable for all industries, meeting safety and security standards. ... Diorite is now offering two unique materials to the discerning customer. Our composite Diorite surface,
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www.dioritesolidsurface.com/
www.dioritesolidsurface.com/
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Being of intermediate composition between felsic and mafic, diorite is classically a salt and pepper rock made largely of white to light gray plagioclase and black hornblende. Some diorites contain biotite as well as hornblende, and some contain up to 10% quartz.
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www.pitt.edu/~cejones/GeoImages/2IgneousRocks/IgneousCo...
www.pitt.edu/~cejones/GeoImages/2IgneousRocks/IgneousCompositions/4Diorite.html
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Research on my rock Diorite ... Diorite is a plutonic igneous rock composed of coarse grains of plagioclase feldspar and less then 40 percent hornblende and biotite, or more rarely pyroxene or olivine. Small amounts of potassium feldspar and quartz may also occur, along with traces of magnetite, apatite, and zircon.
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www.k12.nf.ca/sjis/rocks/sedimentary/diorite.htm
www.k12.nf.ca/sjis/rocks/sedimentary/diorite.htm
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11-Diorite ... Igneous rock similar to granite, but with less quartz. Rock contains light-colored white and pink feldspar and dark biotite and hornblende minerals, giving it a "salt and pepper" appearance. The rock crystallized slowly at great depth beneath the surface, as indicated by the coarse grains.
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www.geosci.ipfw.edu/GeoGarden/sample-11.html
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Definition of diorite from the online medical dictionary hosted by mondofacto. ... An igneous, crystalline in structure, consisting essentially of a triclinic feldspar and hornblende. It includes part of what was called greenstone. ... online medical dictionary | definition of diorite...
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www.mondofacto.com/facts/dictionary?diorite
www.mondofacto.com/facts/dictionary?diorite
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