... without the expense of additional foundation support. Specifications:l Material:slate,quartz,sandstone,granitel Color: black,rusty, ... Wall Cladding,entryways,fireplace , chimneys, featured projects Advantage:l Light weight with beautiful surface texturel Good abrasion resistance, ... frostproof to avoid discoloration over long service spanl anti-acid, no radiation pollution and easy to install stacked ...