| Material | a (Å) | V (Å3) | B (GPa) | dB/dP |
| Ca3PbO | 4.87 | 115.35 | 51.79 | 4.33 (present) |
| 4.84 [12] | 113.37 | -- | 4.37 [14] | |
| 4.73 [13] | 105.82 | 64.59 | ||
| Ca3GeO | 4.86 | 114.79 | 57.71 | 4.31 (present) |
| 4.73 [15] | 105.7 [16] | 57.71 | ||
| Ca3SnO | 4.84 | 113.38 | 55.08 | 3.67 (present) |
| 4.86 [17] | 114.5 [17] | |||
| 4.83 [18] | 112.88 |