| limestone |
|

A sedimentary rock composed of calcium carbonate; includes many varieties,
(oolitic limestone, dolomitic limestone, crystalline limestone.) Limestones that contain more than five percent
magnesium carbonate may be termed calcite limestone, as distinguished from those that contain between five and
forty percent magnes carbonate (magnesium or dolomitic limestone), and from those that contain in excess of forty
percent as the mineral dolomite (dolostone, formerly known as the rock dolomited recrystallized limestones and
compact, dense, relatively pure microcrystallin that are capable of taking polish are included in commercial marbles.
|