The application of different cation collectors in the floatation concentration of feldspar has been investigated. Raw material (Kaltun Mining Co.) from Cine, Aydin in Turkey was used. The results showed that for floatation of feldspars, combined application of AERO 3030C and AERO 801 + AERO 825, performed better than the application of these collectors alone. They were more selective, and with their application a higher mass recovery of feldspar was obtained. However, the chemical compositions of the feldspar concentrates were not significantly different no matter which of these reagents was used. A higher quality of feldspar concentrate: 67.06% SiO2; 19.49% Al2O3; 0.018"/o Fe2O3; 0-135% TiO2; 0.98% CaO; 0.02% MgO; 11.02% Na2O; 0.22% K2O; 0.02% P2O5 was obtained when a combination of these collectors was applied. (c) 2005 Published by Elsevier Ltd.