| 分子类型 | 长度(Å) | 角度(˚) | ||||
| a | b | c | α | β | γ | |
| SiO2 | 5.01 | 5.01 | 5.47 | 90 | 90 | 120 |
| Al2O3 | 4.759 | 4.759 | 4.759 | 90 | 90 | 120 |
| CaO | 4.8105 | 4.8105 | 4.8105 | 90 | 90 | 90 |
| MgO | 4.2112 | 4.2112 | 4.2112 | 90 | 90 | 90 |