Guyana’s Minerals [hr_shadow] Notation about the products Guyana Produces and has to offer for both local and foreign markets: Guyana’s Minerals In addition to its well-known deposits of gold, diamonds and bauxite, Guyana’s mineral heritage includes occurrences of industrial minerals such as kaolin, silica sand, soapstone, kyanite, feldspar, mica, ilmenite, columbite-tantalite, and ...