Research Article
Mineralogical Characteristics of Phosphate Tailings for Comprehensive Utilization
| Type | Mineral | Molecular formula | Size (mm) | Content (%) |
| Phosphate | Collophane | Ca2Ca3[PO4]3(OH,F) | <0.004, aggregate 0.03–0.5 | 45.0 | Monazite | Ce[PO4] | 0.02–0.03 | Very few |
| Oxide | Quartz | SiO2 | 0.03–0.2 | 18.3 | Limonite | FeOOH | 0.04–0.1 | Very few | Anatase/rutile | TiO2 | 0.02–0.05 | Very few |
| Silicate | Plagioclase | Na[AlSi3O8] | 0.06–0.2 | 4 | Potassium feldspar | K[AlSi3O8] | 0.06–0.2 | 3 | Chlorite | (Mg, Fe, Al)3(OH)6{(Mg, Fe, Al)3[(Si, Al)4O10](OH)2} | <0.05 | <1 | Sericite | K{Al2[AlSi3O10](OH)2} | 0.01–0.1 | Very few | Zircon | ZrSiO4 | 0.01–0.04 | Very few |
| Carbonate | Dolomite | CaMg[CO3]2 | 0.01–0.5 | 16.3 | Calcite | CaCO3 | 0.01–0.5 | 12 |
| Natural elements | Carbonaceous | C | <0.01 | Very few | Sum | — | — | — | 99.6 |
|
|