Table 4. Mean phase fractions obtained from Rietveld analysis using XRD data from five samples of the same pyrite ore concentrate aliquot, each individually milled for 7 min.
Sample standard deviations of the mean values from the five repeats are indicated. Note the similarity to the estimated standard deviations from Rietveld analysis.
| Phase | Pyrite | Albite | Quartz | Pyrrhotite | Rutile |
|---|---|---|---|---|---|
| Mean phase fraction (wt%) | 82.7 (3) | 8.4 (2) | 4.94 (12) | 3.07 (10) | 0.92 (2) |