Rocks and Minerals

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What is Nonfoliated?

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Describes metamorphic rocks that lack distinct layers or bands.

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What is Cementation?

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The process by which dissolved minerals crystallize and glue particles of sediment together into one mass.

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What is Crystallization?

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The process by which atoms are arranged to form a material with a crystal structure.

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What is a crystal?

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A substance in which the particles are arranged in an orderly, geometric, repeating pattern.

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What is an extrusive rock?

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Igneous rock that forms when volcanic material erupts, cools, and crystallizes on Earth's surface.

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What is a sedimentary rock?

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A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together.

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What is metamorphism?

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The process by which an existing rock is changed by heat, pressure, or chemical reactions.

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What is the rock cycle?

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The continuous process by which rocks are formed, broken down, and reformed over time.

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What are igneous rocks?

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Rocks that form from the cooling and solidification of magma or lava.

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What is erosion?

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The process by which wind, water, ice, or gravity transports soil and sediment from one location to another.