Phase composition (XRD)
Description:
Dominant cristalline phase is quartz, furthermore present of small amounts albite, microcline and illite.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 0,69 |
| MgO | 0,33 |
| Al2O3 | 0,16 |
| SiO2 | 95,3 |
| P2O5 | 0,09 |
| K2O | 1,56 |
| CaO | 0,40 |
| TiO2 | 0,21 |
| Fe2O3 | 1,29 |