An abundant rock of marine and fresh-water sediments; primarily composed of calcite (CaCO3); it occurs in a variety of forms, both crystalline and amorphous.
(geology) A sedimentary carbonate rock that contains a high percentage of the mineral dolomite.
Made of or with limestone.
a stone or rock entirely composed of the mineral dolomite.
A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.
a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals
Limestone is a common type of carbonate sedimentary rock. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3).