Carbonatite, a rare igneous rock composed primarily of carbonate minerals, has been used to create some of the world's most striking outdoor sculptures. Among the most famous is "The Spirit of Haida Gwaii" by Bill Reid in Vancouver, Canada, which features intricate carvings on black carbonatite. Another notable example is the "Great Serpent Mound" in Ohio, USA, where ancient indigenous peoples shaped carbonatite into a massive serpent effigy. In Brazil, the "Monumento às Bandeiras" in São Paulo showcases carbonatite's durability with its grand, weather-resistant figures. These sculptures highlight the unique beauty and geological significance of carbonatite, blending art with Earth's natural history. Artists prize this material for its fine grain and ability to hold detailed carvings, making it ideal for monumental outdoor works.