Initial characterization of mine waste rock and overburden.
| Physicochemical properties | Waste rock | Overburden |
|---|---|---|
| Sand (%) | 49 | 41 |
| Silt (%) | 27 | 25 |
| Clay (%) | 2.46 | 7.50 |
| Gravel (%) | 21.60 | 27 |
| pHH2O | 5.22 | 4.44 |
| Water content (%) | 0.42 | 4.21 |
| Total C (mg/kg) | < 500 | 3600 |
| N (%) | < 0.01 | 0.03 |
| P (mg/kg) | 71 | 320 |
| K (mg/kg) | 31 | 430 |
| Na (mg/kg) | < 10 | 19 |
| Ca (mg/kg) | 38 | 240 |
| Mg (mg/kg) | 19 | 3700 |
| Mn (mg/kg) | 1090 | 940 |
| Mo (mg/kg) | < 0.50 | 1.19 |
| Fe (mg/kg) | 118000 | 69000 |
| Zn (mg/kg) | < 50 | 74 |
| Pb (mg/kg) | 4.46 | 13 |
| Cu (mg/kg) | 1.60 | 41 |
| Cr (mg/kg) | 3.43 | 19 |
| Cd (mg/kg) | < 0.10 | 0.38 |
| Ni (mg/kg) | 1.43 | 25 |
| Hg (mg/kg) | 0.04 | 0.08 |