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GEOLOGICAL SURVEY OF INDIA
SOMMARY OF THE MORE IMPORTANT MINERALS V P SONDHI
DETAILED ACCOUNT OF THE MINERALS
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acid aluminium amount annual associated average Bengal Bihar Bismuth Bombay Canada cement cent chemical clay coal coke colour Company concentrates considerable consumption containing continued copper corundum countries Cwts demand deposits depth district estimated export feet figures Geological given in Table glass gold Government grade gypsum hills important increase India Indian Union industry iron Italy kaolin known lead less limestone Madhya Pradesh Madras manganese manganese-ore manufacture marble material metal mica miles mill million tons mineral mines Mysore obtained occur operations Orissa output oxide Pakistan period period under review Persian places plant present production Quantity quinquennium Rajasthan recorded reported reserves rise rocks salt sand shows silver sodium sources South Steel stones sulphuric supply Survey TABLE tion tons valued trade United Value various varying veins West zinc