Phase composition (XRD)
Description:
Dominant cristalline phase is quartz, furthermore present albite, microcline and illite.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 1,39 |
| MgO | 0,93 |
| Al2O3 | 2,83 |
| SiO2 | 89,5 |
| P2O5 | 0,12 |
| SO3 | 0,04 |
| K2O | 2,19 |
| CaO | 0,89 |
| TiO2 | 0,34 |
| Fe2O3 | 1,77 |