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BasaltA dark colored fine grained igneous rock formed from mafic magma.
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BasaltA dark colored extrusive igneous rock composed chiefly of calcium plagioclase and pyroxene. Extrusive equivalent of gabbro, underlies the ocean basins and comprises oceanic crust.
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Basaltc. 1600, from Late Latin basaltes, misspelling of Latin basanites "very hard stone," from Greek basanites "a species of slate used to test gold," from basanos "touchstone.&quo [..]
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BasaltType of dense, dark igneous rock that is fine-grained and often columnar.
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Basalttype of dark volcanic rock.
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BasaltHighly mafic igneous volcanic rock, typically fine-grained and dark in color; rough volcanic equivalent of gabbro.
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Basaltan igneous rock, fine-grained and glass-like, formed by rapidly cooled lava often under water.
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BasaltVolcanic rock (or magma) that is generally dark in color, contains 45 to 54 percent silica, and is rich in iron and magnesium. An eruption of basaltic magma is generally quiet, and results in flows (b [..]
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BasaltA semiviscous layer of igneous rock underlying the granitic continental plates. basalt
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BasaltA black, fine-grained volcanic rock made of dark and dense minerals, including iron and magnesium.
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BasaltA dark, fine-grained volcanic rock.
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Basalt— Volcanic rock formed by rapidly cooling lava. Found on the moon and the earth.
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Basalta fine-grained, sometimes glassy rock of volcanic origin; it makes up most of the ocean floor.
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BasaltA dense textured (aphanitic) igneous rock relatively high in iron and magnesia minerals and relatively low in silica, generally dark gray to black, and feldspathic. A general term in contradistinction [..]
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Basaltrock that makes up most of the oceanic plates, made up of
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Basaltvolcanic rock (or lava) containing less than 54% silica, commonly producing more effusive, runny and less explosive lava [basaltic]
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Basalt(n) the commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene
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BasaltFine grained, dark, mafic igneous rock composed largely of plagioclase feldspar and pyroxene.
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BasaltA dark, fine-grained, extrusive
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BasaltDark green or brown igneous rock, often in columnar strata.
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BasaltBasalt is an abundant stone that underlies many parts of the Earth’s surface. Basalt is a dense stone formed when basaltic lava rapidly cools on the Earth’s surface. Uniform in color and matching the durability of granite, basalt is suitable for interior and exterior applications. Basalt is an excellent choice for interior or exterior walls, floori [..]
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BasaltA very common, fine-grained, usually dark-coloured basic igneous rock.
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BasaltA dense-textured (aphanitic), igneous rock relatively high in iron and magnesia minerals and relatively low in silica, generally dark grey to black, and feldspathic; a general term in contradistinction to felsite, a light-colored feldspathic and highly siliceous rock of similar texture and origin.
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Basalta dense black or grey igneous rock
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BasaltA dark, fine-grained, extrusive (volcanic) igneous rock with a low silica content (40% to 50%), but rich in iron, magnesium and calcium. Generally occurs in lava flows, but also as dikes. Basalt makes up most of the ocean floor and is the most abundant volcanic rock in the Earth's crust. more details...
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BasaltA dark-colored, igneous rock commercially known as granite when fabricated as dimension stone.
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Basalt Dark volcanic rock formed by cooling of a lava flow. Popular rock for climbing in the western U.S, including the Crooked River Gorge here at Smith. Due to it's unique fracturing characteristi [..]
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BasaltConsistent year-round energy use of a facility; also refers to the minimum amount of electricity supplied continually to a facility.
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BasaltConsistent year-round energy use of a facility; also refers to the minimum amount of electricity supplied continually to a facility.
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Basalta fine-grained volcanic rock used for the manufacture of chipped stone artifacts. Color black to gray, texture granular to glass-like.
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BasaltFine-grained, dark-colored extrusive igneous rock with less than about 52 weight percent silica (SiO2). Because of its low silica content, basalt has a low viscosity (resistance to flow.) Basalt is co [..]
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Basalta dark-colored, fine-grained, igneous rock formed from molten rock that flowed onto the Earth's surface.
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BasaltVolcanic rock.
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BasaltA dark, fine-grained extrusive igneous rock composed of feldspar and iron-magnesium rich minerals.
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BasaltAn extrusive volcanic rock composed primarily of plagioclase, pyroxene and some olivine. Basal till
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BasaltA dark colored igneous rock, commonly extrusive, composed primarily of calcic plagioclase and pyroxene; the fine-grained equivalent of gabbro.
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BasaltA dark igneous rock. Basalt originates from lava that has extruded onto the surface of the Earth. Therefore the lava has cooled quickly, forming small crystals.
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BasaltA type of basic igneous rock which contains less than 20% quartz and less than 10% feldspar, where at least 65% of the feldspar is in the form of plagioclase
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BasaltVolcanic rock caused by partial melting of the Earth's crust.
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BasaltA dark coloured dense rock, derived from volcanic sources. It has been used in the past to make stone axes
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