Stonemark is 100% natural granite. It is easier to clean and keep clean. All granite is protected by PermaShield, its breakthrough process that uses heat and water-based technology to penetrate deep into the stone to protect it. It is just as affordable as other countertop options. When you buy a Stonemark countertop you are buying quality granite; their slabs are hand picked. If a stone doesn’t meet their price standards, you will never see it in their collection. You can browse the site by its many categories located at the top of the homepage. These categories are: About Stonemark, Material Gallery, PermaShield Features and Benefits, Edge Profiles, Warranty Activation, Care and Use, Purchase Samples, FAQ, Natural Stone Information, Contact Us, News, About Innovative Stone, Store Locator, Estimate Your Project, Partners, Mix and Match, Testimonials, and Lookbook. Some of the PermaShield protection benefits are: Revolutionary Anti-stain 15-year limited warranty, easier to clean and keep clean, no sealing required, affordable, and more.