Table 2. Elemental Composition (wt %) of the Fresh Ores Determined by ICP–OES Spectrophotometry.
| Tierga Fe ore | Gabon Mn ore | |
|---|---|---|
| Al | 2.1 | 3.8 |
| Ca | 3.8 | |
| Fe | 55 | 5.1 |
| Mn | 0.05 | 46.6 |
| Si | 3.8 | 4.2 |
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