Phase composition (XRD)
Description:
Dominant cristalline phase is quartz, furthermore present microcline, albite and a small amount illite.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 1,18 |
| MgO | 0,37 |
| Al2O3 | 7,60 |
| SiO2 | 85,1 |
| P2O5 | 0,09 |
| K2O | 3,47 |
| CaO | 0,66 |
| TiO2 | 0,23 |
| Fe2O3 | 1,30 |