Records of the Geological Survey of India, Volume 76, Part 10Geological Survey of India, 1942 - Earthquakes |
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Page 10
... mica cannot be judged entirely by eye . Certain ceramic products , particularly those made from rutile , have a high dielectric constant , even as high as 80 , but their power factor is higher than that of mica . Trade definitions ...
... mica cannot be judged entirely by eye . Certain ceramic products , particularly those made from rutile , have a high dielectric constant , even as high as 80 , but their power factor is higher than that of mica . Trade definitions ...
Page 68
... trade is manifest ; in normal years 70-80 percent of the world's supply of dressed mica comes from India , and , if only muscovite is con- sidered , between 80 and 90 ... MICA AFTER THE PRESENT RECENT LITERATURE Sources of mica PLATES.
... trade is manifest ; in normal years 70-80 percent of the world's supply of dressed mica comes from India , and , if only muscovite is con- sidered , between 80 and 90 ... MICA AFTER THE PRESENT RECENT LITERATURE Sources of mica PLATES.
Page 79
... mica trade during the war . It is difficult to foretell what the post - war future has in store for the Indian mica trade . The basis of this trade in the past has been the splitting industry . Should war conditions produce , on the ...
... mica trade during the war . It is difficult to foretell what the post - war future has in store for the Indian mica trade . The basis of this trade in the past has been the splitting industry . Should war conditions produce , on the ...
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Common terms and phrases
2nd quality albite amount approximately average Bihar Bihar mica Black dotted Black spotted block and splittings block mica built-up mica Calcutta Canada cleavage condenser films condenser plates countries country rock crude mica dealers diopside district electrical exported block feet felspar Geological Survey Giridih grade granite ground mica Heavily stained 1st high quality mica India Indian mica insulation Intermediate stained J. A. Dunn Kodarma Kodarma Reserved Forest large number larger sizes Lepidolite loose splittings M. S. Krishnan Madagascar Madras mainly manufacture mica belt mica exported mica industry mica mining mica produced mica splittings mica trade mica-schists micanite microcline miles muscovite obtained pegmatites percentage phlogopite potash felspar pyroxenite quality block mica quartz quartz core Rajputana Rajputana mica recent recorded ruby mica schists scrap mica sheet mica Short tons smaller solutions South stained 1st quality stoping Survey of India Table 13 trimmed United uparchalla veins washers