Mining Bond Work Index: work index
Porphyry copper-gold to Zinc ore
Bond work index (Wi, kWh/ton) for 29 mineral and ore types, crusher performance parameters (jaw, gyratory, cone, HSI, VSI, roll, HPGR), and grinding mill design parameters (ball, SAG, AG, rod, vertical roller). Sources: Bond (1961), SME Mineral Processing Handbook 2019, Wills Mineral Processing Technology 8th Ed.
| parameter type | record id | Bond work index kWh per ton (kWh/ton) | Mohs hardness (dimensionless) | abrasion index Ai (dimensionless) | mineral or ore | specific gravity (dimensionless) |
|---|---|---|---|---|---|---|
| work index | Porphyry copper-gold | 14.5 | 4 | 0.35 | Porphyry copper-gold | 2.75 |
| work index | Potash ore | 8.9 | 2.5 | 0.01 | Potash ore | 2.1 |
| work index | Pyrite | 9 | 6 | 0.5 | Pyrite | 4.97 |
| work index | Pyrrhotite | 10.5 | 4 | 0.3 | Pyrrhotite | 4.6 |
| work index | Quartz (silica) | 14.3 | 7 | 0.77 | Quartz (silica) | 2.65 |
| work index | Sandstone | 10.6 | 6.5 | 0.3 | Sandstone | 2.68 |
| work index | Shale | 16 | 3.5 | 0.15 | Shale | 2.63 |
| work index | Tin ore (cassiterite) | 11 | 6.5 | 0.3 | Tin ore (cassiterite) | 6.99 |
| work index | Zinc ore | 12.7 | 3.5 | 0.35 | Zinc ore | 3.64 |
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