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Basalt Extrusive igneous rock. Dark color; fine grain. Rapid-cooled mineral equivalent of gabbro or diabase. ... Diorite Intrusive igneous rock. Intermediate color; coarse grain. Slow- cooled mineral equivalent of andesite.
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home.att.net/~cochrans/terms01.htm
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Paleontology question: What is the mineral composition of gabbro? Pyroxene, plagioclase feldspar, amphibole, and olivine. ... Which minerals are present in gabbro? Mineral composition of red sandstone? What is rhyolite mineral composition? Can Gabbro contain the mineral Quartz? What are the main comstituents of gabbro?
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wiki.answers.com/Q/What_is_the_mineral_composition_of_g...
wiki.answers.com/Q/What_is_the_mineral_composition_of_gabbro
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Gabbro is a dark-colored, coarse-grained intrusive igneous rock. Gabbro is very similar to basalt in its mineral make up. It is composed mostly of the mineral plagioclase feldspar with smaller amounts of pyroxene and olivine.
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www.stone-network.com/rocks/igneous.html
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Diabase and gabbro have the same general mineral composition as basalt, but they have a larger grain size. Basalt: chemically, this is identical to diabase and gabbro, but is very fine-grained. Basalt is from a melt that cooled very rapidly- in other words, on the surface of the earth or in the ocean.
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www.njminerals.org/moreid.html
www.njminerals.org/moreid.html
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Gabbro is a dark plutonic rock that is considered to be the plutonic equivalent of basalt. (more below) ... Unlike granite, gabbro is low in silica and has no quartz; also gabbro has no alkali feldspar, only plagioclase that often is dark with a high calcium content. The other dark minerals may include amphibole,
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geology.about.com/od/rocks/ig/igrockindex/rocpicgabbro....
geology.about.com/od/rocks/ig/igrockindex/rocpicgabbro.htm
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Mineral Information Institute -- www.mii.org; | Common Minerals | |Mineral Photos| |Minerals by Type| |Minerals Alphabetically|; | For Teachers Only | | Poster Packets | | Homework Help For Students | | About MII | | Back to Main |
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www.mii.org/Minerals/photogabbro.html
www.mii.org/Minerals/photogabbro.html
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Gabbro igneous rock specimen perfect for any rock kit. Great gabbro rock sample size for seeing color, texture, and mineral content. Gabbro can change color based on which minor minerals are present. Great igneous rock for kids rock kits. ... Gabbro Igneous Rock. Dark gray, ... Deluxe Rock & Mineral Collections...
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www.minimegeology.com/home/mgeo/page_60_20/gabbro_igneo...
www.minimegeology.com/home/mgeo/page_60_20/gabbro_igneous_rock.html
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The mineral assemblages in a vertical weathering profile developed over a meta-gabbro terrain were studied for their stoichiometry and relative abundances. The site is located in the Piedmont Province in the southeast portion of the Appalachians orogenic belt in a forested residual landscape and a temperate climate.
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www.gly.uga.edu/schroeder/geol6550/DS.html
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Abstract The Mineral Lake Intrusive Complex (MLIC) is a Layered Ma c Intrusion (LMI) located in northeastern Wisconsin. Granitic and gabbroic rocks are intimately associated in the MLIC, with each rock type often containing inclusions of the other.
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minds.wisconsin.edu/handle/1793/35580
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