| Mineral composition | 250 - 125 micron |
| Opaques | 3% |
| Quartz | 65% |
| Orthoclase | 6% |
| Plagioclase | 5% |
| Hypersthene | 5% |
| Epidote | 4% |
| Hornblende | 3% |
| Biotite | 6% |
| Muscovite | 3% |