| Data Set/Point | 16/1. | 30/1. | 54/1. |
| SiO2 | 37.536 | 37.623 | 37.497 |
| TiO2 | 1.771 | 1.844 | 2.034 |
| Al2O3 | 17.998 | 18.264 | 18.034 |
| FeO | 11.854 | 11.689 | 12.099 |
| MnO | 0.084 | 0.08 | 0.046 |
| MgO | 15.342 | 15.516 | 15.541 |
| CaO | 0 | 0.005 | 0.008 |
| Na2O | 0.165 | 0.188 | 0.158 |
| K2O | 10.276 | 10.076 | 10.015 |
| Cr2O3 | 0.003 | 0.045 | 0.021 |
| Cl | 0.008 | 0.026 | 0.019 |
| BaO | 0 | 0.036 | 0 |
| Total | 94.988 | 95.391 | 95.451 |
| Comment | A1_Tu010 | A2_Tu012 | A2_Tu013 |
| Si | 5.448 | 5.431 | 5.418 |
| Al iv | 2.552 | 2.569 | 2.582 |
| Al vi | 0.527 | 0.539 | 0.490 |
| Ti | 0.193 | 0.200 | 0.221 |
| Cr | 0.000 | 0.000 | 0.000 |
| Fe | 1.439 | 1.411 | 1.462 |
| Mn | 0.010 | 0.010 | 0.006 |
| Mg | 3.319 | 3.339 | 3.348 |
| Li* | 0.713 | 0.723 | 0.703 |
| Ca | 0.000 | 0.001 | 0.001 |
| Na | 0.046 | 0.053 | 0.044 |
| K | 1.902 | 1.855 | 1.846 |
| OH* | 4.000 | 4.000 | 4.000 |
| F | 0.000 | 0.000 | 0.000 |
| Cl | 0.000 | 0.000 | 0.000 |
| TOTAL | 20.150 | 20.131 | 20.121 |
| Y total | 6.201 | 6.222 | 6.230 |
| X total | 1.949 | 1.909 | 1.891 |
| Al total | 3.079 | 3.108 | 3.072 |
| Fe/Fe + Mg | 0.302 | 0.297 | 0.304 |