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Igneous rock forms when magma cools and solidifies. (Lava is magma that has reached the Earth's surface.) Etna also shows off the etymology of igneous, from the Latin word for fire.
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May 3, 2024 · Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of magma, which is a hot (600 to 1,300 °C, or 1,100 to 2,400 °F) molten or partially molten rock. Igneous rocks constitute one of the three principal classes of rocks, the others being metamorphic and sedimentary.
Oct 19, 2023 · noun. sedimentary rock produced from small pieces of other rocks. dissolution. noun. termination or destruction by breaking down, disrupting, or dispersing. erosion. noun. act in which earth is worn away, often by water, wind, or ice. geomorphology.
Rock definition: Relatively hard, naturally formed mineral or petrified matter; stone.
Jul 9, 2023 · What Is a Rock? A rock is a naturally occurring solid aggregate of one or more minerals or mineraloids. This means it consists of single or multiple minerals packed closely together. The Earth’s crust is solid rock, while the molten rock of the mantle is known as magma. The Three Types of Rocks. Rocks are classified based on how they were formed.
rock bottom: [noun] the lowest or most fundamental part or level.
