Physical, Mechanical and Metallurgical Characteristics of Banded Hematite Jasper of Ghatkuri (Gua), Jharkhand

Quick depletion rate of high-grade iron ore paved to emphasise
on banded hematite jasper and banded hematite quartzite with
~30-40% iron. In the present investigation, efforts have been
made to characterize the banded hematite jasper of Ghatkuri area
(Gua), west Singhbhum, Jharkhand, India. The banded hematite
jasper of the study area have complex physical and mineralogical
character. X-ray diffraction analysis indicated that silica and
iron are the major phases whereas alumina and goethite are the
gangue mineral. Thermo-gravimetric analysis revealed it to be
oxy-hydrated with iron in hematite phase. Vickers hardness test
and bond work index revealed hard and compact nature of the
ore. Grain size analysis shows the maximum concentration of the
elements at the size range of -125+106 μm whereas minimum at
-212+180 μm.