Petrosa is a deep black gneiss with a pattern reminiscent of a starry sky. It’s an interesting and elegant stone that can be used and explored in various ways. Petrosa conveys a sleek, modern, and luxurious appearance. The dark and rich color of black gneiss is often associated with sophisticated and contemporary aesthetics, and its durability allows it to be explored in a variety of projects, including countertops, flooring, cladding, both for outdoor and indoor areas.