Gabbro - Wikipedia Gabbro is a coarse-grained igneous rock that is relatively low in silica and rich in iron, magnesium, and calcium Such rock is described as mafic Gabbro is composed of pyroxene (mostly clinopyroxene) and calcium-rich plagioclase, with minor amounts of hornblende, olivine, orthopyroxene and accessory minerals [4]
Gabbro | Properties, Formation, Composition, Uses - Geology Science Gabbro is a type of intrusive igneous rock that is coarse-grained and dark-colored, typically composed of calcium-rich plagioclase feldspar, pyroxene, and sometimes olivine It is similar in composition to basalt, which is its extrusive equivalent
Gabbro: Igneous Rock - Pictures, Definition More - Geology. com Gabbro is a coarse-grained, dark-colored, intrusive igneous rock It is usually black or dark green in color and composed mainly of the minerals plagioclase and augite It is the most abundant rock in the deep oceanic crust Gabbro has a variety of uses in the construction industry
Gabbro: Composition, Types, Properties, Uses – Geology In Gabbro is a coarse-grained, dark-colored intrusive igneous rock that forms from the slow cooling and crystallization of mafic magma beneath the Earth's surface It is composed primarily of calcium-rich plagioclase feldspar and pyroxene minerals (such as augite), with smaller amounts of olivine and amphibole
Gabbro | Igneous Rock, Mafic Minerals Plutonic Intrusions - Britannica Gabbro, any of several medium- or coarse-grained rocks that consist primarily of plagioclase feldspar and pyroxene Essentially, gabbro is the intrusive (plutonic) equivalent of basalt, but whereas basalt is often remarkably homogeneous in mineralogy and composition, gabbros are exceedingly
Gabbro: The Intriguing Coarse-Grained Igneous Rock . . . - Rock Seeker Gabbro is a dense, coarse-grained igneous rock that forms deep beneath the Earth’s surface as slow-cooling magma solidifies It shares the same composition as basalt but cools slowly enough for its minerals to grow large and become visible to the naked eye
Gabbro: A Coarse-grained, Dark-Colored Plutonic Rock Gabbro is a dense, coarse-grained, dark-colored, mostly plutonic rock Its essential minerals are calcic plagioclase and pyroxene, but it may have minor amounts of amphibole, olivine, and other minerals
Gabbro: Identification, Pictures Info for Rockhounds Gabbro is an intrusive igneous rock composed primarily of plagioclase feldspar and large amounts of mafic minerals like pyroxene It has a phaneritic texture, meaning its interlocking crystals can be seen with the naked eye It is usually dark gray, black, or dark greenish, and is closely related to basalt
Gabbro - Geology is the Way Gabbro is a plutonic igneous rock and the intrusive counterpart of basalt Gabbros are essentially constituted by Calcium-rich plagioclase (>An50), clinopyroxene (augite, diopside), and iron oxides (ilmenite, magnetite) and may contain accessory olivine, amphibole, orthopyroxene, and spinel
Gabbro: Mineral information, data and localities. - mindat. org A group of basic intrusive igneous rocks composed principally of basic plagioclase (commonly labradorite or bytownite) and clinopyroxene (augite), with or without olivine and orthopyroxene; also, any member of that group It is the approximate coarse-grained intrusive equivalent of basalt