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  1. igneous rock love

Definitions

Wiktionary

  1. n. geology one of the major groups of rock that makes up the crust of the Earth; formed by the cooling of molten rock, either below the surface (intrusive) or on the surface (extrusive)

WordNet 3.0

  1. n. rock formed by the solidification of molten magma

Examples

  • “So geologists, by measuring the ratio between potassium-40 and argon-40 in a piece of igneous rock that they pick up today, can tell how long ago the rock first crystallized out of its molten state.”

    Simon & Schuster: THE GREATEST SHOW ON EARTH

  • “Mostly the rocks brought back from the Sea of Tranquility were basalt: a dense, dark-gray, fine-grained igneous rock composed chiefly of calcium-rich plagioclase feldspar and pyroxene; on Earth, basalt is the commonest type of solidified lava.”

    Simon & Schuster: First Man

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