Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3).
Limestone is comprised of a broad family of different types of stone which vary significantly in character. Most limestones are light and subtle in tone and display subtle patterning like flecks, veins, mottled patches, or even fossilized shells. Limestone is softer than granite.
Limestone is a popular choice for backsplashes, walls and floors. When used in high use applications such as bath or kitchen counters, it is reasonable to expect a certain amount of scratching, which can add to the character of the stone. To preserve the natural beauty, avoid contact with spills and use a low PH stone cleaner.