Smarty Pants Quiz
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Most types of this rock are made from the shells or skeletons of ancient ocean dwellers, such as shellfish or corals.
Gneiss
Hornfels
Limestone
Flint
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Most limestone types are made up of the minerals aragonite, calcite, and dolomite.
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09
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Most types of this rock are made from the shells or skeletons of ancient ocean dwellers, such as shellfish or corals.
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