The ore that contains both iron and copper is:

Solution :
Amongst the given ores, copper pyrite $$\left( {CuFe{S_2}} \right),$$   dolomite $$\left( {MgC{O_3}.CaC{O_3}} \right),$$     malachite $$\left[ {CuC{O_3}.Cu{{\left( {OH} \right)}_2}} \right],$$     azurite $$\left[ {2CuC{O_3}.Cu{{\left( {OH} \right)}_2}} \right],$$     copper pyrite contains both copper and iron.