A method of producing a synthetic composition having properties of marble includes blending a polymer resin with a stone gravel bit to form a mixture. The method also includes processing the mixture of polymer resin with the stone gravel bit to produce a synthetic marble composition through a polymerization of the mixture that is cast in a casting cell. Further, the method may include preparing a mold to form a casting cell, removing air bubbles from the mixture of polymer resin with the stone gravel bit to enhance a physical property of the synthetic marble material, casting the mixture in the casting cell, polymerizing the cast mixture through an autoclave polymerization of the mixture at a pressure ranging from 1 to 10 atmospheres and a temperature ranging from 50° to 100° C. to prepare the synthetic marble material composition, and curing the synthetic marble sheet in an oven.