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Rocks and Minerals

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Across
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minerals that are rare and can be cut and polished, giving them a beautiful appearance
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melted rocks inside the earth
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minerals that break with rough or jagged edges
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studies the Earth's processes, products and its history
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rocks formed from pieces of broken rock, shells, mineral grains, and other materials (2 words)
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the color of the powdered form of the mineral
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made up of one or more minerals
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a solid material found in nature that has never been alive
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rocks form when melted rock material from inside Earth cools (2 words)
Down
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a description of the way a mineral surface looks when light reflects off of the surface
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minerals that break along smooth, flat surfaces
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magma that reaches to the earth's surface
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a mineral that has the hardness of 1
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rocks that form when existing rocks are heated or squeezed but are not melted (2 words)
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used to classify minerals from 1 (softest) to 10 (hardest) 2 words
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a mineral that has the hardness of 10
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how easily a mineral scratches materials