Rare earth (Eu3+) doped Nasicon type compositions, Ca0.5Fe1-xEuxSb(PO4)(3) (x=0.1, 0.15 and 0.2) were synthesized by semi sol-gel method and characterized by powder X-ray diffraction. All the three compositions were crystallized in hexagonal lattice with space group R (3) over bar. The time independent (DC) conductivity measurements were carried out in the temperature range 300-623 K. The activation energies for conduction were deduced from the Arrhenius plots. The luminescence properties and local structure of Eu3+ doped Nasicons were investigated by means of emission spectra and phonon sidebands. (C) 2010 Elsevier B.V. All rights reserved.