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| solid in which atoms are arranged in an orderly, repeating pattern |
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| hot, melted rock mateial beneath earth's suface |
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| solid material made in earth, whose atoms are arrangede in a set |
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| mineral that contains silicon and oxygen and usually one or more elements |
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| physical property of some minerals that cause them to break along smooth, flat surfaces |
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| physical property of some minerals that causes them to break unevenly with rough or jagged edges |
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| measure of how easily a mineral can be scratched |
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| how a mineral reflects light |
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| color of a mineral's powder when it is scratched |
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| valuable mineral that is both rare and beautiful, mostly used in jewlery |
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| mineral or rock that contains a substance that can be mined for a profit |
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| mixture of rock-forming minerals and other materials |
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| model that shows how rocks slowly change over time |
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| dense, dark igneous rock that forms from magma |
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| igneous rock formed when lava cools ABOVE earth's surface |
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| light colored igneous rock formed from thick magma containing lots of silica |
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| rock that forms as magma or lava cools and hardens |
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| igneous rock that forms beneath the surface of earth |
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| molten rock that flows from volcanoes onto earth's surface |
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| metamorphic rock whose minerals grains are lined up in parallel layers |
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| rock that has been changed by heat, pressure, or the presnece of hot fluids |
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| metamorphic rock whose minerals grow and rearrange themselves in a nonlayered texture |
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| process in which sediments are helf together by dissolving minerals produced when water moves through rock |
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| process in which layers of sediments are pressed together to form rock |
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| loose materials, such as tiny pieces of rock, mineral grains, and bits of shell, that are weathered from rocks and carried by wind or water |
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| rocks that are formed when sediments are pressed and cemented together, or when minerals form from solutions |
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| body fossil that forms when a mold fills with sediment or minerals and then hardens into rock |
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| the remains, imprints, or traces of animals or plants that died long ago |
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| body fossil that forms when an organism decays or dissolves and leaves a hollow cavity in the rock |
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| age of something compared to the age of other things |
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| age, in years, of a rock or other object |
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