The dataset used for the ML model described in Machine-Learning of Piezoelectric Coefficients for Wurtzite Crystals. Composition ICSD Structure density (gm/cc) a (lattice Parameter a in Angstrom) b (lattice Parameter b in Angstrom) c (lattice Parameter c in Angstrom) z11* (Born Effective charge averaged over all atoms, component 1,1) z22 * (Born Effective charge averaged over al atoms, component 2,2) z33 * (Born Effective charge averaged over al atoms, component 3,3) E11 Dielectric tensor component 11 E22 Dielectric tensor component 11 E33 Dielectric tensor component 11 e15 Piezoelectric stress coefficient tensor component 15 in C/m2 e31 Piezoelectric stress coefficient tensor component 31 in C/m2 e33 Piezoelectric stress coefficient tensor component 33 in C/m2 max-rad in Angstrom min-rad in Angstrom Eneg-max Eneg-min Eneg-diff pol-max pol-min pol-diff C11 Elastic Modulus tensor Cij component 11 in GPa C12 Elastic Modulus tensor Cij component 12 in GPa C13 Elastic Modulus tensor Cij component 13 in GPa C33 Elastic Modulus tensor Cij component 33 in GPa C44 Elastic Modulus tensor Cij component 44 in GPa