Critical minerals are a collection of metal and non-metal commodities considered essential for economic and industrial development, and for which there are significant concerns around future supply due to resource scarcity or geopolitical factors. The Geological Survey of South Australia's Critical Minerals South Australia (CMSA) project focuses on advancing knowledge to support critical minerals discovery and exploration in South Australia. The CMSA project, through the "Critical mineral potential of South Australia" report book series, reviews and identifies key mineralisation styles for defined critical minerals, maps existing critical mineral occurrences across the State and identifies regions with significant critical mineral potential aiming to increase industry and investor understanding of South Australia's critical mineral potential. The Report Book includes: - Overview of uses for high purity alumina - Review of economic high purity alumina deposit types - High purity alumina occurrences and prospectivity in South Australia - Maps of South Australia’s high purity alumina occurrences and characteristic forms - Excel spreadsheet combining all occurrence data for high purity alumina available from South Australia’s Mineral Deposit (MinDep) database