Records of the Geological Survey of India, Volume 76, Parts 9-14Government of India, 1947 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 5
... usually not be greater than about one to nine . Both SiO , and Al , O , increase the amount of slag formed , and this always contains manganese hence causing losses and higher fuel consumption . SiO2 should not exceed 8 per cent . and ...
... usually not be greater than about one to nine . Both SiO , and Al , O , increase the amount of slag formed , and this always contains manganese hence causing losses and higher fuel consumption . SiO2 should not exceed 8 per cent . and ...
Page 9
... Usually in aggregates of tetragonal prisms , often fibrous . Composition , probably MnO2 , but Fermor quotes m ( BaMn ) 2 MrО + nƑe̱ ( MnO3 ) 3 . Contains about 56 per cent . Mn . Colour , steel - grey . Streak , black . Hardness , 6 5 ...
... Usually in aggregates of tetragonal prisms , often fibrous . Composition , probably MnO2 , but Fermor quotes m ( BaMn ) 2 MrО + nƑe̱ ( MnO3 ) 3 . Contains about 56 per cent . Mn . Colour , steel - grey . Streak , black . Hardness , 6 5 ...
Page 36
... ( usually 4 to 8 per cent . ) rather high silica usually about 6 to 9 per cent . ) and moderately low phosphorus ( usually about 0 '07 to 0 20 ) ; for analyses see Table 3. At Dongri Buzurg in the Bhandara district , an ore rich in ...
... ( usually 4 to 8 per cent . ) rather high silica usually about 6 to 9 per cent . ) and moderately low phosphorus ( usually about 0 '07 to 0 20 ) ; for analyses see Table 3. At Dongri Buzurg in the Bhandara district , an ore rich in ...
Contents
GENERAL | 1 |
THE MODE OF OCCURRENCE | 8 |
Indian provincial production of manganese | 12 |
13 other sections not shown
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abrasive albite alloys amount annual average B. C. Roy belt beryl Beryllium Bihar block mica Bombay braunite Brazil built-up mica Calcutta Canada cent Central Provinces chalcocite chalcopyrite cleavage colour condenser films containing copper copper deposits corundum countries crystals deposits occur district dressed mica electrical exports fair stained feet felspar ferromanganese garnet Geol Geological Survey gonditic granite Heavily stained important inches India insulation iron and steel iron-ores J. A. Dunn known Kodarma limestone lode M. S. Krishnan Madras mainly manganese manganese-ore manufacture metal mica industry mica-schists micanite miles million tons Mineral Resources mines muscovite Mysore obtained ore-bodies oxide pegmatites phlogopite plate production psilomelane pyrolusite quality block quality mica quartz Rajputana recent replacement rocks ruby Sandur schists sheet mica silicate Singhbhum sizes smelting South splittings sulphide surface Surv Survey of India Table thickness United vanadium veins world's