Science glossary film: Limestone

Limestone

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A sedimentary rock composed mostly of calcium carbonate; relatively soft, and light brown in colour.

A sedimentary rock composed mostly of calcium carbonate; relatively soft, and pale in colour. It has been a popular building material for thousands of years, in part because it is so easy to work with. Limestone forms in warm, shallow seas, and almost always contains marine fossils, from microscopic shells to full skeletons.

It has been a popular building material for thousands of years, in part because it is so easy to work with. Limestone forms in warm, shallow seas, and almost always contains marine fossils, from microscopic shells to full skeletons.

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