Phase composition (XRD)
Description:
Dominant cristalline phase is quartz, furthermore present a small amount microcline and illite.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 0,61 |
| MgO | 0,38 |
| Al2O3 | 1,08 |
| SiO2 | 94,8 |
| P2O5 | 0,12 |
| K2O | 1,20 |
| CaO | 0,26 |
| TiO2 | 0,18 |
| MnO | 0,05 |
| Fe2O3 | 1,32 |