For millions of years, layer upon layer of earth’s materials have formed various metamorphic rock layers we now call slate, mica, and sandstone. We also know them as durable stones used for floors and patios cut only with diamond saws then mortared into place and usually grouted along the edges. Generally easy to work with, but quite heavy and improbable in many applications, these solid stones have been the only practical means of creating that real stone look. Until now…