Phase composition (XRD)
Description:
Dominant crystalline phase is quartz, not possible to exclude small amount microcline.
Chemical composition (XRF)
| Element | Content [%] |
| Na2O | 0,81 |
| MgO | 0,31 |
| Al2O3 | 7,40 |
| SiO2 | 86,3 |
| P2O5 | 0,09 |
| K2O | 3,52 |
| CaO | 0,42 |
| TiO2 | 0,16 |
| Fe2O3 | 0,73 |