Limestone is a sedimentary rock that is generally comprised of the skeletal remains of organic ocean organisms formed into solid crystallite manifestations of calcium carbonate. In flooring it is considered a mid strength mid porosity natural stone option, with a relatively uniform palette, and a historically classic design essence. The contrasting colors that emerge in their surfaces are often due to iron oxide imperfections that are present during formation. This accounts for the unique look that each tile may have in any given batch. Limestone’s absorption level will vary, but it is generally fairly prone to water damage, and therefore needs to be sealed regularly with both a penetrating below surface sealer, and a barrier chemical seal to create an invisible layer over its surface.
Applications: walls, floors, stairs, facades
Abrasion resistance: fair
Resistance to acids: poor
Surface treatment: natural, honed, antique