Indiana limestone was formed from calcium carbonate in the bottom of an ancient tropical sea. Indiana limestone is naturally beautiful and provides a rich, substantial appearance. Quarried in United States, Indiana limestone is most suited for interior applications and protected exterior locations. The calcium carbonate crystals in Indiana limestone allow it to be polished. When used as StonePly panels, limestone is strong and easy to handle and install.

Indiana limestone originally formed at the bottom of an ancient, shallow tropical sea. Calcium carbonate forms and builds up around grains of sand or pieces of shells or coral, cementing them together. Over time limestone is formed. Indiana limestone is quarried in United States. The beautiful soft tone of Indiana is prized for architectural stone panels. With StonePly panels the aluminum panel strengthens the limestone. In fact Stoneply panels have 60 times the impact strength of un-reinforced limestone panels.