Notably, the model's foundation rests upon data sourced from the Materials Project Database, comprising an array of salient features such as average crystal radius, average melting point (in Kelvin), maximum valence d, and volume, among others. We obtain a coefficient of determination (R 2 ) of 0.84 and a mean absolute error (MAE) of 2.21 GPa. Similar to the refractive index model, we used 5-fold validation to compute the metrics mentioned earlier.