| Modal Mineralogical composition | Sample slide Numbers | |||||||
| SKM 7 | SKM 10 | SKM 12 | SKM 12-A | SKM 14 | ||||
| Quartz | Monocrystalline Quartz | 30 | 26 | 28 | 21 | 25 | ||
|
| Polycrystalline Quartz | 3 | 5 | 2 | 6 | 2 | ||
| Feldspar | Perthite | -- | -- | 1 | -- | -- | ||
|
| Microcline | -- | 1 | -- | 2 | 3 | ||
|
| Microcline-perthite | -- | -- | 1 | -- | -- | ||
|
| Plagioclase | 2 | 2 | 0.5 | 1 | 1 | ||
|
| Sandstone | 3.5 | 5 | 2 | 5 | 5 | ||
|
| Sedimentary
| Siltstone | 3 | 4 | 3 | 5 | 6 | |
|
| Limestone | 3 | 4 | 3 | 4 | 4 | ||
| Rock Fragments |
| Quartzite | 2 | 4 | 3 | 3 | 4 | |
| Metamorphic | Slate | 2 | 4 | 5 | -- | 2 | ||
|
|
| Schist | 5 | 4 | 3 | 4 | 3 | |
|
| Igneous | Volcanic | -- | 7 | -- | 5 | -- | |
|
| Muscovite | 4 | 3 | 5 | 2 | 6 | ||
|
| Biotite | 5 | 1 | 3 | 3 | 3 | ||
| Accessory minerals | Tourmaline | 1 | -- | 1 | 1 | 1 | ||
| Hornblende | -- | -- | -- | 1 | -- | |||
|
| Epidote | -- | -- | 0.4 | 1 | -- | ||
|
| Chlorite |
| 2 | 1 | 2 | 1 | 2.6 | |
|
| Hematite |
| 2.5 | -- | 1 | -- | 1 | |
|
| Sericite |
| -- | -- | 0.1 | -- | 0.4 | |
|
| Opaque |
| 3 | 3 | 4 | 2 | 2 | |
| Cementing material Matric | Calcite |
| 24 | 22 | 27 | 27 | 25 | |
| Hematite |
| 1 | -- | 1 | 2 | 1 | ||
| Arenite |
| 4 | 4 | 4 | 4 | 3 | ||