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ROCKS

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Across
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Hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling
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Matter that settles to the bottom of a liquid
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Solid inorganic substances of natural occurrence
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Type of rock formed when subjected to high heat, high pressure, hot mineral-rich fluids, or a combination of such
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Rock that is not banded or layered
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Hot molted or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this
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The process where rocks are broken down by natural forces such as wind and water
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Igneous rock that is relatively rich in elements that form feldspar and quartz
Down
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The process of wearing or being worn by long exposure to the atmosphere
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A silicate mineral or igneous rock rich in magnesium and iron
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Type of rock that has formed through the deposition and solidification of sediment
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Type of rock with cavities formed by expansion of gas or steam bubbles during solidification
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A type of metamorphic rock that has distinct, repetitive layers
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Rocks formed by the solidifying and cooling of molten materials
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The solid mineral material forming the surface of the earth and other similar planets