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Table 1 Mineral composition of the two sandstone variations Pfinztal Sandstone and Tennenbach Sandstone used in the triaxial tests (Schmidt et al. 2017)
| In vol (%) | Pfinztal Sandstone | Tennenbach Sandstone |
|---|---|---|
| Quartz | 49 | 83 |
| K-feldspar | 16 | 2 |
| Muscovite | 11 | 0 |
| Cementation | 15 | 5 |
| Accessories | 1 | 1 |
| Pore space | 8 | 9 |
