| x | y | z | Uiso*/Ueq | Occ. (<1) | |
| Sr | 0.055001 (8) | 0.055001 (8) | 0.055001 (8) | 0.00459 (3) | |
| As | 0.421839 (11) | 0.421839 (11) | 0.421839 (11) | 0.00709 (4) | |
| Na | 0.67077 (6) | 0.67077 (6) | 0.67077 (6) | 0.01193 (15) | |
| O1 | 0.39368 (12) | 0.07909 (10) | 0.35359 (10) | 0.01687 (18) | |
| O2 | 0.29270 (9) | 0.13067 (11) | 0.04892 (10) | 0.01519 (16) | |
| O3 | 0.60854 (10) | 0.29633 (9) | 0.14338 (10) | 0.01243 (14) | |
| O4 | 0.33000 (13) | 0.33000 (13) | 0.33000 (13) | 0.0077 (3)* | 0.60 |
| O5 | 0.4046 (7) | 0.3186 (7) | 0.3016 (7) | 0.0117 (10)* | 0.13 |
| O6 | 0.56151 (12) | 0.44234 (13) | 0.35120 (12) | 0.00759 (17)* | 0.60 |
| O7 | 0.5256 (5) | 0.3069 (5) | 0.3904 (5) | 0.0115 (7)* | 0.20 |
| O8 | 0.5623 (8) | 0.3833 (8) | 0.4407 (8) | 0.0088 (11)* | 0.10 |
| O9 | 0.5627 (8) | 0.3668 (8) | 0.4973 (8) | 0.0084 (11)* | 0.10 |