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All about Rocks!

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Across
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A person who loves everything about rocks and enjoys collecting rocks.
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Sedimentary rock made up mostly of pieces of dead coral and molluscs and the minerals calcite and aragonite.
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Rocks that are formed from sand, shells, and other broken rocks when these layers are compressed into rock.
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Soft limestone and dolomite rock in the Earth that has dissolved in rainwater eventually creating hollowed out areas in the Earth called caves.
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Rocks that come from volcano eruptions.
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All precious and semi-precious stones.
Down
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Dolomite limestone ranging in color from white to red and brown to black. It is found only on Cayman Brac and Grand Cayman Island.
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These rocks are formed from Igneous and sedimentary rocks under heat and pressure inside the Earth.
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Solid formations formed naturally in the Earth. A rock is a solid combination of more than one of these.
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The result of broken down rocks.
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Natural substances composed of solid crystals of different minerals fused together into solid lumps.