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MINERALS PRODUCED IN THE INDIAN UNION
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analysis anorthosite appears associated Australia average Basin beds Bihar boulders carried cent chemical clay coal Complex composition Conglomerate contain continued crystals deposits depth direction district east emerald evidence exported extensive faulting feet field flow formation further Geol Geological Survey given glaciation Gondwana gypsum hill hole important increase indicate iron known land limestone localities located Lower Madras magnetite manufacture marl material Measures miles mineral mines Mysore nala occurs origin output period Permian Pleistocene points possible Pradesh present probably production pyrite quantity quartz Rampur range recent recorded remanent magnetism reported reserves reverse river rocks samples sandstone seam sediments seen Series shale Shaly coal similar strike suggested surface Survey of India System TABLE thickness thin tillite tion tons Upper valued vein