Project Stone Australia – Homepage – Queensland's largest range of stone surfaces. Natural Stone: Basalt, Granite / Quartzite, Limestone, Marble, Onyx, Semi-Precious Stone, Travertine. Engineered Stone: Samsung Radianz Quartz, Samsung Radianz Recycled Project Stone Project Stone Australia boasts an impressive, globally sourced collection of stunning Natural Stone. We offer the largest selection in Queensland – you are sure to find a stone surface to satisfy any desired effect. From the intensity and durability of Granite, the elegance of Marble, the exotic charm of Limestone and Travertine to the sheer brilliance of Onyx.