KEYSTONE allows more freedom of design where the warmth and beauty of NATURAL STONE is desired. It is WEATHERPROOF, COLOR FAST and has exceptionally HIGH INSULATING VALUES. When properly installed it will last the lifetime of the building with no undesirable changes in color or appearance.
Keystone Coral is made up of the fossilized remains of many thousands of tiny marine animals. The hard coral is similar to limestone, and many formed enormous reefs millions of years ago. Coral rock is painstakingly quarried from the earth and inspected thoroughly to guarantee the highest quality stone. Coral comes in various natural colors: White, Yellow, and Rose.