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THE MINERAL FUELS
THE PRECIOUS METALS
THE MORE IMPORTANT NONFERROUS METALS
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alloys alluvial alluvium aluminium Andhra annual Assam average Baluchistan bands Barakar beds Bengal Bihar Bombay Burma cement cent clays Coal Measures coal seams coalfields coke colliery colour commenced contain copper crystals deposits depth district dolomite drilled east Eocene exported feet in thickness feet thick field gallons Geol Geological Survey gold Gondwana haematite Hills Hyderabad important India industry iron Kashmir known lateritic limestones M. S. Krishnan Madhya Pradesh Madras magnesium manganese manufacture metal mica million tons Mineral Resources mining Mysore obtained occur Orissa outcrops output oxide Pakistan pegmatites production Punjab quantities quarried quartz quartzites railway Rajasthan Raniganj refractory region reserves river rocks sands sandstones schists Series shales Shan silicate Singhbhum sodium soils square miles steel stones sulphate sulphur supplies surface Survey of India taluk Tertiary tons per annum Upper Uttar Pradesh valley veins yield zinc