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The '''carbonates''' are [[compounds]] of one or more [[metallic]] [[elements]] or [[semimetal|semimetals]] with the [[carbonate]] radical. One member of this class, [[calcite]], is sufficiently [[common]] to form large bodies of [[limestone]], a [[sedimentary]] [[rock]]. The carbonates are [[brittle]] [[minerals]] , and many of them break easily along [[crystal]] directions to develop the characteristic [[rhombohedral]] [[cleavage planes|cleavage]]. A few carbonate minerals are in bright [[color|colors]], but many of them are [[white]], [[colorless]], or [[transparent]]. Chesterman, p. 431
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The '''carbonates''' are [[compounds]] of one or more [[metallic]] [[elements]] or [[semi-metal|semi-metals]] with the [[carbonate]] (CO<sub>3</sub><sup>2-</sup>) radical. One member of this class, [[calcium carbonate]] (CaCO<sub>3</sub>), is sufficiently [[common]] to form large bodies of [[limestone]], a [[sedimentary rock]]. The carbonates are [[brittle]] [[minerals]], and many of them break easily along [[crystal]] directions to develop the characteristic [[rhombohedral]] [[cleavage planes|cleavage]]. A few carbonate minerals are in bright [[color|colors]], but many of them are [[white]], [[colorless]], or [[transparent]]. Chesterman, p. 431
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=Sources=
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==Sources==
 
*Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987)
 
*Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987)
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[[category:geology]]
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[[category:Sedimentary rocks]]
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