| Interatomic Distances Å | Bond Valence Sum (BVS)* | Distortion index | |
Al-O1 | 1.8567(3) | 0.5735 |
| |
Al-O2 | 1.8778(3) | 0.5417 | ||
Al-O3 | 1.8885(3) | 0.5263 | ||
Al-O4 | 1.8923(3) | 0.5209 | ||
Al-O5 | 1.9011(3) | 0.5087 | ||
Al-O6 | 1.9072(3) | 0.5004 | ||
| 1.8872(3) | Σsi = 3.1715 | 0.7% |