A new langasite structure piezoelectric single crystal Sr(3)NbGa(3)Si(2)O(14) (SNGS) had been grown by the vertical Bridgman method for the first time. SNGS crystalline powder was synthesized as the starting material by sintering the mixture of 4N pure SrCO(3), Nb(2)O(5), SiO(2) and Ga(2)O(3) at 1200 degrees C for 16 h. < 001 >-oriented La(3)Ga(5)SiO(14) (LGS) crystal of circle divide 10 nm x 35 mm was used as seed. A SNGS crystal with 25 mm in diameter and 40 mm in length has been grown from its stoichiometric melt. The transmittance spectra were measured and the transmittance of SNGS crystal was found to be greater than 80% in wavelength of 400-1000 nm. (c) 2005 Elsevier Ltd. All rights reserved.