| 单位:Å | (100)R | (010)R | (001)R |
| 斜切0˚ | 4.5491 | 4.5614 | 2.8510 |
| 斜切1˚ | 4.5458 | 4.5504 | 2.8518 |
| 斜切3˚ | 4.5407 | 4.5552 | 2.8502 |
| 粉体 | 4.5546 | 4.5546 | 2.8514 |