Table symbiotic rock gold ore (Cu, Pb, Zn) General requirements for industrial index mineral
project | Sulphide ore | Oxidized ore | ||||
Cu (copper) | Pb (lead) | Zn (zinc) | Cu (copper) | Pb (lead) | Zn (zinc) | |
Boundary grade (ωB)% | 0.2 to 0.3 | 0.3 to 0.5 | 0.5 to 1 | 0.5 | 0.5 to 1 | 1.5~2 |
Minimum industrial grade (ωB)% | 0.4 to 0.5 | 0.7 to 1 | 1 to 2 | 0.7 | 1.5~2 | 3 to 6 |
Average grade of the deposit (ωB)% | 0.7 to 1 | 6 | 6 | 10~12 | 10~12 | |
Minimum recoverable thickness m | 1 to 2 | 1 to 2 | 1 to 2 | 1 | 1 to 2 | 1 to 2 |
Stone removal thickness m | 2 to 4 | 2 to 4 | 2 to 4 | 2 | 2 to 4 | 2 to 4 |
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