Limestone slabs make some of the most beautiful countertops that you’ll see. They usually come in light colors, like white, tan or gray (perfect for a room with a cheery feel). Often you’ll see skeletal fragments of marine organisms visible on limestone countertops, creating a very unique surface (and a fun topic of conversation). Due to their fragility and susceptibility to scratching, staining and etching, limestone countertops are best suited for low-traffic areas. It is a porous stone, so it does require sealing. But it is very heat resistant, so with proper care and maintenance limestone countertops stay as beautiful as the day they were installed for years and years.