Stones used in Zimbabwean sculpture are locally sourced. Zimbabwe literally means "house of stone,” and the country boasts an astonishing diversity of hard rocks that are used for carving, with colloquial names that convey the intrinsic beauty of the medium: green and lemon opal, fruit serpentine, multi-coloured cobalt, semi-precious stones such as purple lepidolite, verdite and dolomite and the lustrous black iron serpentine called springstone. These dense stones have extremely fine grains and uniform structure, making them ideal for expanding sculptural innovation and showcasing the technical skill of the artists.