This report is a result of a request by Arne Purves , City of Cape Town, for digital data on the economic and potentially economic mineral resource fields in the City of Cape Town’s administrative area. This data was captured and pla ced on ARC-GIS. A total of eleven mineral commodities were identified, namely stone aggregate – granite, stone aggregate – Malmesbury slate, stone aggregate – Table Mountain sandstone, brick clay, plastic clay, building sand, silica sand, gravel (ferricrete), limestone, kaolin and ph osphate. Their distribution was compiled as separate layers on ARC-GIS. This report describes e ach mineral commodity systematically in terms of the location, extent, economic viability a nd alternative sources outside the Cape Town area. The GIS data standards are given in Appendix 1.

Environmental Resource Management Department, City of Cape Town