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| natural, nonliving substances that make up rocks |
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| way light reflects off the surface of a mineral |
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| color of a powder left when a mineral is scratched along a white tile called a streak plate |
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| property that refers to a mineral's ability to scratch or be scratched by another mineral |
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| rocks that are mined because they contain useful minerals |
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| melted rock below the Earth's surface |
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| melted rock that reaches the Earth's surface |
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| rocks that form melted rock |
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| below the Earth's surface |
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| above the Earth's surface |
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| tiny particles such as bits of rocks and minerals, and plants, bones, shells, or other animal materials |
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| rocks that form from sediments that become pressed together in layers |
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| remains of animals or plants from long ago |
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| rocks formed from other rocks lumped together |
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| force that can squeeze rocks together |
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| rocks formed from other rocks by extreme heat and pressure deep inside Earth |
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| scientist who studies Earth's history by examining and identifying rocks |
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| cycle by which rocks change from one form to another |
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