Stone can be divided into four major types: Igneous Stone (granite, basalt) Formed from molten rock. Sedimentary Stone (limestone, sandstone, travertine) Formed from sediments that hardened over time from heat and pressure. Metamorphic Stone (marble, slate, serpentine) Formed from a nature change from one type of stone to another. Engineered Stone (terrazzo, faux marble, agglomerate) Created by mixing stone chips with bonding substance like resin or cement.