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clean up & uniformity
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
The '''carbonates''' are [[compounds]] of one or more [[metallic]] [[elements]] or [[semi-metal]]s 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]]s, but many of them are [[white]], [[colorless]], or [[transparent]]. Chesterman, p. 431
==Classification==
==Classification==
An admittedly Old Earth system the "Dunham classification" relies on empirical observation.
An admittedly Old Earth system the "Dunham classification" relies on empirical observation.
===References===
===References===
<references/>
<references/>
[[category:Sedimentary Rocks]]
[[Category:Sedimentary Rocks]]