A new compound K6Ti2Nb14O42 was found in the ternary system K2O-TiO2-Nb2O5. The compound was characterized and investigated by electron probe, X-ray powder diffraction and differential thermal analysis. The transparent crystal of light yellow color in form of hexagon-thin plate can be grown by flux method. Further, its crystal structure was determined by four-circle diffractometer. K6Ti2Nb14 O-42 crystallizes in hexagonal system with unitcell parameters a = 9.1106 (5) X 10(-10) m, c = 12.0136 (9) X 10(-10) m, Z = 1 and space group P6(3)/mcm (193)
