| Point | Element mass% | ||
| HO | Al2O3 | SiO2 | FeO |
| 1 | 33.96 | 1.09 | 64.95 |
| 2 | 0.01 | 0.58 | 99.41 |
| 3 | 31.30 | 1.21 | 67.49 |
| 4 | 7.28 | 0.85 | 91.87 |
| 5 | 0.12 | 0.00 | 99.88 |