STONE LINE: THE LINE Timeless integration in the landscape The idea behind "stone line" is … the development of a uniform line of minimalist garden lighting. Whereas the basic, no-frills design and the taut lines ensure the timelessness of our creations, the chosen materials are synonymous with durability. A durability that integrates seamlessly into the garden décor, in a natural way. STONE LINE: THE STONE Belgian Bluestone: an age-old tradition Belgian Bluestone, quarried and machined according to the rules of a three-hundred-year-old tradition, is frost-resistant and has a virtually non-existent porosity. In short, it's rated among the best types of marble. On account of its harmonious aesthetics, Belgian Bluestone is one of the essential building materials in Belgian architecture.