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Basalt - Wikipedia An aphanitic (fine-grained) igneous rock is classified as basalt when its QAPF fraction is composed of less than 10% feldspathoid and less than 20% quartz, and plagioclase makes up at least 65% of its feldspar content This places basalt in the basalt andesite field of the QAPF diagram
Basalt: Igneous Rock - Pictures, Definition, Uses More Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals It most commonly forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill
Basalt | Properties, Formation, Composition, Uses Basalt is a type of volcanic rock that is formed from the solidification of molten lava It is an igneous rock, meaning it is formed through the cooling and solidification of magma or lava
Basalt: Properties, Formation, Uses, and Famous Locations . . . Explore the strength and versatility of basalt, a volcanic rock with widespread uses in construction, industrial applications, and art Learn about its formation, types, famous locations, and how to care for basalt in this detailed guide
Basalt: Composition, Properties, Types, Uses - Geology In Basalt is defined as a fine-grained, dark-colored igneous rock composed mainly of plagioclase and pyroxene minerals, with or without olivine It is formed from the rapid cooling of basaltic lava exposed at or very near the surface of the Earth (extrusive or volcanic rock)
Basalt Rock | Composition, Textures and Geological Role Basalt is a very common dark-colored volcanic rock composed of calcic plagioclase (usually labradorite), clinopyroxene (augite) and iron ore (titaniferous magnetite)