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| Rock/sediments | Average content of F (mg/kg) | SD | |
|---|---|---|---|
| Rock type | Biotite schist | 1300 | 200.0 |
| Granite porphyry | 803.0 | 69.35 | |
| Granodiorite porphyry | 553.0 | 29.57 | |
| Dolomite | 260.0 | 22.52 | |
| Biotite granite | 437.0 | 84.25 | |
| Basalt | 520.0 | 85.06 | |
| Calcite | 220.0 | 50.01 | |
| Sediment type | Clay | 1118 | 112.0 |
| Silt | 1106 | 68.15 | |
| Fine sand | 535.0 | 71.63 | |
| Medium sand | 426.7 | 36.42 |
