Limestone is mainly composed of calcite or calcium carbonate. Its colouring and hardness, and in general its appearance, will be determined by the presence of different quartzes, clays, magnesites and other carbonates. Limestone, not being as hard as other stones, is ideal to cover interiors, either in floors, walls, or surfaces of the bathroom or kitchen.
Sandstones are sedimentary stones with a long tradition of use in construction. Since ancient times, they have been used to build walls, castles and churches, due to their high resistance to wear and tear and their ease of processing.
Shales are metamorphic rocks composed of volcanic ash and clays. Nowadays, they are very appreciated in interior design and decoration, because of their original colouring in black, grey, ochre and reddish tones. In addition, it is ideal for exteriors, both in coverings and flooring, due to its high degree of waterproofing.