Enter a species (e.g. Al, Fe): Lr Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 Enter hexagonal lattice constants 'a' and 'c' (m): 3.131649155973968e-10, 5.114063636847382e-10 Calculating isothermal bulk modulus Optimization terminated successfully. Current function value: -21.481116 Iterations: 71 Function evaluations: 180 Finished calculation C11 = 1259.9318249840915 GPa C12 = 337.19883309291123 GPa B = 644.7764970566379 GPa