Records of the Geological Survey of India, Volume 70Geological Survey of India, 1936 - 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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Results 1-3 of 72
Page 249
... mica occurrences of India belongs to the variety known as muscovite . Production . During the period under review the output of mica in India averaged 43,742 cwts . against 43,309 during the period 1924-1928 , with a minimum output of ...
... mica occurrences of India belongs to the variety known as muscovite . Production . During the period under review the output of mica in India averaged 43,742 cwts . against 43,309 during the period 1924-1928 , with a minimum output of ...
Page 251
... mica has , during the last three years shared in the general depression both in quantity and value . Owing to the lack of details regarding the sizes and qualities of the mica exported , either as block mica or mica splittings , it is ...
... mica has , during the last three years shared in the general depression both in quantity and value . Owing to the lack of details regarding the sizes and qualities of the mica exported , either as block mica or mica splittings , it is ...
Page 254
... mica splittings , chiefly of sizes No. 5 and smaller . The larger sizes ( No. 4 up to Special ) have a limited but ... mica accounted for only 18 per cent . of the exports during the five years 1929 to 1933 , by value block mica ...
... mica splittings , chiefly of sizes No. 5 and smaller . The larger sizes ( No. 4 up to Special ) have a limited but ... mica accounted for only 18 per cent . of the exports during the five years 1929 to 1933 , by value block mica ...
Contents
Diamonds Distribution in India Southern group of occurrences | 4 |
49 | 11 |
102 | 21 |
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A. M. Heron amount annual output annual production Assam average annual bauxite Bengal Bihar and Orissa Bombay Burma Calcutta cement cent Central Provinces clay coke Company consumption copper corundum countries cwts deposits Dharwar district exports feet figures furnaces gallons Gangpur Geol Geological Survey gold gonditic Gondwana grade granite hæmatite ilmenite imports increase India Indian coal industry iron and steel iron-ore jadeite kyanite L. L. Fermor limestone lodes Long Tons M. S. KRISHNAN Madras magnesite manganese manganese-ore manganiferous manufacture metal mica miles mineral mines Mogok monazite Mysore Nagpur obtained occur ore-body oxide pegmatites period under review petroleum pig-iron previous quinquennium Punjab Quantity quartz quinquennial period quinquennium under review railway Rajputana Raniganj rocks salt Sandur schists seams silica sillimanite Singhbhum Southern Shan stone sulphate sulphur Surv Table Tavoy tion tons valued United veins whilst wolfram world's zinc