The range features two colour shades: Gris and Anthracite, reproducing all the beauty of a limestone popular for architecture down the ages thanks to its distinctive colour naturally varying from grey to blue and black, and its extremely compact, uniform consistency. The range comprises a large number of sizes and thicknesses, to express the striking beauty of Pierre Bleue in the most widely varying architectural contexts, always meeting technical demands with exquisite looks. Versatility, performance and the potential for seamless continuity are even further enhanced by the 80×80 cm size in the 20 mm thickness, specifically created for outdoor use, available in the Noble and Ancienne finishes. Finally, the collection also features the Opus and the Petit Opus multi-size combinations, comprising different sizes mixed and boxed together for variegated, extremely natural installation layouts. Unique Bleu: a perfect, tasteful combination of the features needed for complex contemporary architectural design schemes, which combine to express different aesthetic styles with a strong personality and unique character.