Artemis Calacatta Gold Honed Penny Round Marble Mosaic Tile Sheets This mosaic is made from Calacatta Gold Marble, a rare and beautiful natural stone. This stunning marble adds a luxurious design element to any home. The classic penny shape showcases the gorgeous variation of the stone. Also available order in Herringbone & Feather shapes PIECE SIZE: 23mm SHEET per m²: 11.46 SOLD: m²