Table 2. Mean elemental weight fractions of pyrite concentrate powder ball milled for 7 min determined using semi-quantitative WD-XRF data, and standard deviations from five repeat samples.
The Kα peak of oxygen was visible but O was excluded from the analysis due to the lack of accuracy for this element. The presence of trace elements with overlapping energies, such as As Kα and Pb Lα, or W Lβ and Au Lα, was confirmed by ICP-MS (Table S1). Other elements are below the detection/quantification limit of the technique (Loubser & Verryn, 2008 ▸; Kadachi & Al-Eshaikh, 2012 ▸). Elemental fractions were obtained from fundamental parameter analysis.
| Element | Wt% | Element | Wt% |
|---|---|---|---|
| S | 52.2 (6) | Mg | 0.032 (4) |
| Fe | 35.8 (3) | K | 0.03 (10) |
| Si | 4.51 (10) | Zr | 0.01 (2) |
| Al | 0.95 (2) | W | <0.01 |
| Na | 0.74 (4) | As | <0.01 |
| Ti | 0.57 (4) | Pb | <0.01 |
| Co | 0.45 (2) | Nd | <0.01 |
| Ni | 0.058 (8) | Y | <0.01 |
| Ca | 0.042 (13) |