The PETRA I Mono variation of the collection is shown as the main image and listed price. Twin and Triple variations are available. Please inquire for variations and upcharged Quartz finish information.PETRA (from the Greek word Πέτρα, meaning stone) celebrates the complexity and subtleties in the material composition in Quartz that PETRA is made from.Evoking strong connections to deep earth geology, PETRA radiates light through subtle tones and snaking veins of Quartz.The magic of PETRA is determined by the natural inherent beauty of Quartz.Every PETRA is unique as a consequence of variance to the size, shape, translucency, and natural details of the stone.