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igneous rock
igneous rockThe term for a rock formed when molten rock cools and hardens. Extrusive, or volcanic, igneous rock cools on the surface as lava. Intrusive igneous rock forms when molten rock cools underground.Thesaurus| Noun | 1. | igneous rock - rock formed by the solidification of molten magmarock, stone - material consisting of the aggregate of minerals like those making up the Earth's crust; "that mountain is solid rock"; "stone is abundant in New England and there are many quarries"andesite - a dark grey volcanic rockaplite - light-colored and fine-grained granitic rock consisting chiefly of quartz and feldsparsgroundmass - (geology) the matrix of fine-grained crystalline material in which larger crystals are embeddedadesite - dark greyish extrusive rockbatholite, batholith, pluton, plutonic rock - large mass of intrusive igneous rock believed to have solidified deep within the earthdiorite - a granular crystalline intrusive rockgabbro - one of a family of granular intrusive rockspegmatite - a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elementsperidotite - a dark coarse-grained igneous rock consisting principally of olivinerhyolite - very acid volcanic rockvolcanic rock - extrusive igneous rock solidified near or on the surface of the Earthporphyritic rock, porphyry - any igneous rock with crystals embedded in a finer groundmass of mineralssodalite - a vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline form; occurs in igneous rocks |
igneous rock
igneous rock: see rockrock,
aggregation of solid matter composed of one or more of the minerals forming the earth's crust. The scientific study of rocks is called petrology. Rocks are commonly divided, according to their origin, into three major classes—igneous, sedimentary, and metamorphic.
..... Click the link for more information. .igneous rockA class of rock formed by change of the molten material to the solid state; generally termed granite if coarse-grained.MedicalSeeRockigneous rock
Related to igneous rock: Intrusive igneous rockWords related to igneous rocknoun rock formed by the solidification of molten magmaRelated Words- rock
- stone
- andesite
- aplite
- groundmass
- adesite
- batholite
- batholith
- pluton
- plutonic rock
- diorite
- gabbro
- pegmatite
- peridotite
- rhyolite
- volcanic rock
- porphyritic rock
- porphyry
- sodalite
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