To provide a grain oriented
ceramic capable of exerting excellent piezoelectric properties, a production method thereof, and a piezoelectric material, a
dielectric material, a
thermoelectric conversion element and an
ion conducting element each using the grain oriented
ceramic, there is provided a grain oriented
ceramic comprising, as the main phase, an isotropic
perovskite-type compound which is represented by formula (1): {Lix(K1−yNay)1−x}(Nb1−z−wTazSbw)O3 in which x, y, z and w are in respective composition ranges of 0≦x≦0.2, 0≦y≦1, 0≦z≦0.4, 0≦w≦0.2 and x+z+w>0. The main phase comprises a polycrystalline body containing from 0.0001 to 0.15 mol of any one or more additional element selected from
metal elements,
semimetal elements,
transition metal elements,
noble metal elements and
alkaline earth metal elements belonging to Groups 2 to 15 of the
Periodic Table, per mol of the compound represented by formula (1). A specific
crystal plane of each
crystal grain constituting said polycrystalline body is oriented.