Phase composition (XRD)
Description:
Dominant cristalline phase is quartz, furthermore present albite, microcline and a small amount illite.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 1,21 |
| MgO | 0,31 |
| Al2O3 | 5,21 |
| SiO2 | 86,5 |
| P2O5 | 0,19 |
| K2O | 4,90 |
| CaO | 0,28 |
| TiO2 | 0,28 |
| Fe2O3 | 1,12 |