Phase composition (XRD)
Description:
Dominant cristalline phase is quartz, furthermore present of small amounts albite, microcline and illite.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 0,57 |
| MgO | 0,40 |
| Al2O3 | 0,98 |
| SiO2 | 94,6 |
| P2O5 | 0,09 |
| K2O | 1,25 |
| CaO | 0,46 |
| TiO2 | 0,41 |
| Fe2O3 | 1,24 |