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Investigations on the microstructural and electrical properties of a glassceramic system: (100mol%, in the regular steps of 2 mol%) via high-energy ball milling technique are reported. XRD spectra of LGePG glassceramic samples were identified major crystalline phases such as Li 3 Ge 2 (-PO 4 ) 3 (NASICON-type phase), Ga 2 Li 3 (PO 3 ) 7 and GeO 2 from the major diffraction peaks. Bulk conductivity of all these samples was measured for the powder-compressed pellets by ac impedance method. The correlation of log(r) and M 00 peaks suggests the presence of single conduction mechanism in the LGePG glassceramic samples. The results are discussed in the light of degree of crystallization of lithium phosphate glass network.