Avoid causing damage to popular natural stones such as marble, travertine and limestone by understanding key differences between a siliceous and calcareous stone.
Common types of siliceous stone include: granite, slate, sandstone, quartzite, brownstone, and bluestone. A siliceous stone is composed mainly of silica or quartz-like particles. This type is considered very durable and relatively easy to clean. Unlike a calcareous stone, it is safe to use “mild” acidic cleaning solutions on an occasional and infrequent basis.
Common types of calcareous stones include: marble, travertine, limestone, and onyx. Composed mainly of calcium carbonate, a calcareous stone is very sensitive to cleaning solutions that contain acidic or alkaline value.