Detailed mineralogical characterization study has been conducted on low grade iron ore sample from Bellary-Hospet region, Karnataka, India by using XRD, optical microscopy and Mössbauer spectroscopy techniques for identifying the eminence of iron ore sample. Liberation analysis was carried out by particle size analysis and specific gravity measurement. Chemical analysis results showed that, -125+90µ size fraction assaying up to 57.34% Fe, 8.55% SiO2 and 8.6% Al2O3. XRD analysis revealed the presence of major hematite phase along with kaolinite, gibbsite, quartz and goethite in the sample. Microscopic study confirms the transformation of magnetite to hematite by martitization. Mössbauer spectrum reveals the existence of hematite α-Fe2O3 phase with small distortion in crystal structure

Topics
Specific gravity, Optical microscopy, X-ray diffraction, Minerals, Metal oxides, Transition metals, Gemstones, Particle size analysis, Spectroscopy, Chemical analysis
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© 2019 Author(s).
2019
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