Lashter Marble, internationally known as Pietra Grey Marble, is a high-quality natural stone originating from Iran, prized for its dark gray to nearly black background with fine white veining. When processed with a bush-hammered finish, it gains a rough texture that enhances its slip resistance, making it ideal for outdoor and high-traffic areas. The Double Black variety refers to a deeper, more consistent black shade, which adds a bold and elegant touch to architectural projects. This stone’s durability and striking appearance have made it a popular choice for both modern and traditional designs worldwide.