| Point | Cations of network former, modifier and intermediates [at.-%] | |||||||||||
| Si | La | Na | K | Ca | Ba | Zn | Ta | Zr | Y | Al | Gd | |
| 3-1 | 64.2 | 3.7 | 0.9 | 19.0 | 4.8 | 7.3 | ||||||
| 3-2 | 64.5 | 4.6 | 1.1 | 17.5 | 5.1 | 7.3 | ||||||
| 3-3 | 62.3 | 5.4 | 1.0 | 19.4 | 5.2 | 6.8 | ||||||
| 4-1 | 4.9 | 48.0 | 3.3 | 3.8 | 2.1 | 1.7 | 0.4 | 1.8 | 10.8 | 23.2 | ||
| 4-2 | 26.0 | 18.8 | 3.1 | 8.0 | 5.0 | 11.3 | 3.0 | 6.1 | 7.8 | 11.0 | ||
| 4-3 | 25.8 | 20.4 | 5.2 | 7.4 | 4.8 | 8.5 | 1.6 | 6.5 | 8.5 | 11.1 | ||