Records of the Geological Survey of India, Volume 75, Issue 8

abundant amorphous limonite anisotropism Bamra bands biotite Bore-hole records botryoidal boulders Calcutta cent chalcedony chalcophanite colour country rock Crossed nicols cubic yard Deogarh-Jamunkira road Dolerite east of Tiklipara ferruginous manganese-ores foliation further east gabbro Geol gneissic gœthite Government Test House grains of quartz hæmatite hill hollandite Jamumal Jamunkira Khairdihi pit Krimaloi Kuagola large number lateritic lateritised rock lateritised zones Liesegang ring limonitisation lumps of limonite lumps of manganese-ore lumps per cubic M. S. Krishnan magnetite mainly manganese manganese and iron manganese minerals manganese-ore Manganese-ore Deposits manganiferous limonite manganiferous minerals material excavated maund of lumps metasomatic microscope Mukteshwar nodules Nuadihi occur patches Phasimal plagioclase polianite Polished section portion pseudomorphic psilomelane psilomelane component Pukhura pyrolusite pyroxene quartz quartzite Rankibahal reflected light replaced ridge Sarai schistose schists sheet 73 sills Singhbhum soft pyrolusite soil southern flank sphene structure Surv Survey of India Tikiba veins of manganese-ore