Phase composition (XRD)
Description:
Dominant cristalline phase is quartz, furthermore present microcline, albite and illite.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 1,14 |
| MgO | 0,34 |
| Al2O3 | 6,24 |
| SiO2 | 87,5 |
| SO3 | 0,17 |
| K2O | 3,56 |
| CaO | 0,24 |
| TiO2 | 0,12 |
| Fe2O3 | 0,69 |