Table 2 - Semi-quantitative mineralogical analyses (XRD) of the Zvornik BR before and after H-direct reduction at ~1000 °C Mineral Phase Chemical Formula Content (wt%) Before Before Magnetite Fe₃O₄ 0.28 Hematite Fe₂O₃ 52.3 Coesite SiO₂ 1.6 Cancrinite Na₆Ca₂Al₆Si₆O₂₄(CO₃)₂·2H₂O 19 Ilmenite FeTiO₃ 2 Hydrogarnet Ca₃Al₂(SiO₄)₃₋ₓ(OH)₄ₓ (x<3) 17.3 Gibbsite Al(OH)₃ 1.5 Perovskite CaTiO₃ 6 After Chemical Formula After Perovskite CaTiO₃ 20.1 Magnetite Fe₃O₄ 2.39 Ilmenite FeTiO₃ 5.45 Mullite 3Al₂O₃·2SiO₂ 0.63 Iron Fe 37.49 Gehlenite Ca₂Al₂SiO₇ 13.03 Ankerite Ca(Fe,Mg,Mn)(CO₃)₂ 1.48 Spinel MgAl₂O₄ 6.31 Corundum Al₂O₃ 5.43 Nepheline (Na,K)AlSiO₄ 1.54 Lime CaO 0.62 Larnite Ca₂SiO₄ 5.52 Table 1 – ICP-OES (chemistry) and XRD (mineralogical) analyses of the Zvornik BR Elemental composition (wt%) Norm alized (wt%) Mineral Phase Chemical Formula Content (wt%) FeO 43.87 51.55 Magnetite Fe₃O₄ 0.28 CaO 9.3 11.88 Hematite Fe₂O₃ 52.3 Al₂O₃ 8.04 13.87 Coesite SiO₂ 1.6 SiO₂ 5.66 11.06 Cancrinite Na₆Ca₂Al₆Si₆O₂₄(CO₃)₂·2H₂O 19 Na₂O 3.53 4.35 TiO₂ 2.01 3.06 Ilmenite FeTiO₃ 2 MgO 0.3 0.46 Hydrogarnet Ca₃Al₂(SiO₄)₃₋ₓ(OH)₄ₓ (x<3) 17.3 Nb₂O₅ 0.22 0.28 MnO 0.17 0.20 Gibbsite Al(OH)₃ 1.5 Cr₂O₃ 0.13 0.17 Perovskite CaTiO₃ 6 P₂O₅ 0.11 0.23 CeO₂ 0.08 0.09 NiO 0.08 0.09 La₂O₃ 0.04 0.05 SO₃ 0.04 0.09 SrO 0.04 0.05 CoO 0.02 0.03 Sc₂O₃ 0.02 0.03 K₂O 0.01 0.01
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