Records of the Geological Survey of India, Volume 85Geological Survey of India, 1954 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 15
... crystals of spinel , bundles of scapolite prisms and a few euhedral crystals of corundum . When the schist becomes veined with acidic material these minerals are not recognisable . Coarse grained garnetiferous amphibolites are exposed ...
... crystals of spinel , bundles of scapolite prisms and a few euhedral crystals of corundum . When the schist becomes veined with acidic material these minerals are not recognisable . Coarse grained garnetiferous amphibolites are exposed ...
Page 377
... crystals need splitting and cutting to size and polishing before they are used in jewellery . Shaping of crystals is done by sawing and the diamond dust thus obtained is used as abrasive in drilling bits of diamond . Actual methods ...
... crystals need splitting and cutting to size and polishing before they are used in jewellery . Shaping of crystals is done by sawing and the diamond dust thus obtained is used as abrasive in drilling bits of diamond . Actual methods ...
Page 406
... crystals are dis- cussed . It is shown that slow , symmetrical mode of growth favours the forma- tion of small star - shaped twins and symmetrical concentric twin patterns while rapid growth in preferred directions , yields an irregular ...
... crystals are dis- cussed . It is shown that slow , symmetrical mode of growth favours the forma- tion of small star - shaped twins and symmetrical concentric twin patterns while rapid growth in preferred directions , yields an irregular ...
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38th Indian Sci Ajmer-Merwara alluvium Assam Assistant Geologist bands Belgaum Bihar Bombay Calcutta cent charnockites clay coal coalfields Congr copper Cuddapah days with effect Deccan trap Delhi deposits depth Dharwar Dhenkanal district district dolerite dolomite drilling dykes east examined exported feet G. W. Division Geol geological mapping Geological Survey geophysical gneisses Gondwana grade granite ground-water hill India Indian Miner industry investigation Iron-ore irrigation Kaladgi Keonjhar Kurnool Kurnool district Kutch laterite limestone M. S. Krishnan Madhya Pradesh Madras Magnesite manganese manganese-ore Mehta Messrs Metal Mkt mica million tons mines Mysore nala November occur Orissa output pegmatites phyllites pits Proc production quantity quarried quartz quartzites Rajasthan reported Returned to Circle Returned to headquarters river rocks samples sand sandstones Saurashtra schists shales sheet 73 Singhbhum square miles steatite Survey of India taluk thick tons valued veins village Vindhya Pradesh