Gabbro

A coarse grained, basic, plutonic rock, consisting mainly of calcic plagioclase and pyroxene, sometimes with olivine.

gabbro

Highly mafic igneous plutonic rock, typically dark in color; rough plutonic equivalent of basalt.
Found on http://www.ucmp.berkeley.edu/glossary/glossary_2.html

gabbro

igneous phanerite typically consisting of 50 to 90 percent dark-colored plagioclase, less than 5 percent quartz and 35 to 65 percent varietal minerals (augite ± another pyroxene ± olivine).
Found on http://www.cst.cmich.edu/users/dietr1rv/gemrxAppB.htm

gabbro

[n] - one of a family of granular intrusive rocks
Found on http://www.webdictionary.co.uk/definition.php?query=gabbro

Gabbro

Gab'bro noun [ Italian ] (Geol.) A name originally given by the Italians to a kind of serpentine, later to the rock called euphotide, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and labradorite, with sometimes chrysolite (olivine gabbro)...
Found on http://www.encyclo.co.uk/webster/G/1

gabbro

<geology> A name originally given by the Italians to a kind of serpentine, later to the rock called euphotide, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and labradorite, with sometimes chrysolite (olivine gabbro). ... Origin: It. ... Source: Websters Dictionary ... (01 Mar 1998)...
Found on http://www.encyclo.co.uk/local/20973

Gabbro

• (n.) A name originally given by the Italians to a kind of serpentine, later to the rock called euphotide, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and labradorite, with sometimes chrysolite (olivine gabbro).
Found on http://thinkexist.com/dictionary/meaning/gabbro/

gabbro

any of several medium- or coarse-grained rocks that consist primarily of plagioclase feldspar and pyroxene. Essentially, gabbro is the intrusive ... [6 related articles]
Found on http://www.britannica.com/eb/a-z/g/1

Gabbro

dark, coarse-grained, intrusive igneous rock chemically equivalent to basalt.
Found on http://en.wikipedia.org/wiki/Glossary_of_geology

gabbro

Gabbro. Credit: Mineral Information Institute A dense, dark, course-grained igneous rock consisting largely of plagioclase feldspar, pyroxene, and olivine. Gabbro is the intrusive (i.e., cooled and solidified underground) equivalent of basalt. Accessory minerals in gabbros include apatite, horn...
Found on http://www.daviddarling.info/encyclopedia/G/gabbro.html

gabbro

gabbro: see basalt.
Found on http://www.infoplease.com/ce6/sci/A0913655.html

Gabbro

A dark, coarse-grained igneous rock.
Found on http://www.adrianaresources.com/s/Glossary.asp

gabbro

Click images to enlargeMafic (consisting primarily of dark-coloured crystals) igneous rock formed deep in the Earth's crust. It contains pyroxene and calcium-rich feldspar, and may contain small amounts of olivine and amphibole. Its coarse crystals of dull minerals give it a speckled appearance. Gabbro is the ...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0015247.html

Gabbro

Gabbro oʊ refers to a large group of dark, often phaneritic (coarse-grained), mafic intrusive igneous rocks chemically equivalent to plutonic basalt. It forms when molten magma is trapped beneath the Earth`s surface and slowly cools into a holocrystalline mass. The vast majority of the Earth`s surface is underlain by gabbro within the oceanic c.....
Found on http://en.wikipedia.org/wiki/Gabbro

Gabbro

A dense, coarse-grained greenish dark colored rock igneous rock that is chemically similar to basalt.
Found on http://www.allaboutgemstones.com/glossary_gemology.html

Gabbro

An igneous granular stone composed chiefly of pyroxene, augite or diallage, and plagioclase.
Found on http://www.selectstone.com/architectural-resources/stone-glossary/

gabbro

Any of a group of dark, dense, phaneritic, intrusive rocks that are the plutonic equivalent to basalt.
Found on http://www.inlandlapidary.com/user_area/glossaryG.asp

gabbro

A coarse-grained igneous rock, chemically equivalent to a basalt.
Found on http://www.ge-at.iastate.edu/glossary-of-geologic-terms/

gabbro

A type of dark, coarse-grained, intrusive mafic igneous rocks chemically equivalent to basalt. The rocks are plutonic, formed when molten magma is trapped beneath the Earth's surface and cools into a crystalline mass.
Found on http://www.scientificpsychic.com/etc/geology-glossary.html

Gabbro

A dark-colored, coarse-grained rock composed of Ca-plagioclase, pyroxene, and possibly olivine, but no quartz.
Found on http://www.evcforum.net/WebPages/Glossary_Geology.html

Gabbro

A black, coarse-grained intrusive igneous rock that is the compositional equivalent of basalt. Compo
Found on http://www.encyclo.co.uk/local/22392

gabbro

granular igneous rock
Found on http://phrontistery.info/g.html

Gabbro

A dark, coarse-grained igneous rock.
Found on http://www.adrianaresources.com/s/Glossary.asp

Gabbro

A dark, coarse-grained igneous rock.
Found on http://www.libertystaruranium.com/miningexplained/mining-geology-glossary/

Gabbro

A coarse grained intrusive rock, which is low in silica and has relatively high levels of iron and magnesium minerals.
Found on http://www.australian-shares.com/glossary-of-terms.php.html
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