Records of the Geological Survey of India, Volume 76, Part 10Geological Survey of India, 1942 - Earthquakes |
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Page 11
... approximately 001 inch in thickness ( not over 0012 inch ) . Splitting quality usually a stained soft mica which is parti- cularly easily separated into thin cleavage films . Manufactured mica - mica cut to any particular size or shape ...
... approximately 001 inch in thickness ( not over 0012 inch ) . Splitting quality usually a stained soft mica which is parti- cularly easily separated into thin cleavage films . Manufactured mica - mica cut to any particular size or shape ...
Page 15
... approximately consistent local standard which might be referred to as the bazar market standard . Messrs . F. F. Chrestien and Co. have for many years been shipping block mica according to certain brands : " Tiger Clear " , " Tiger ...
... approximately consistent local standard which might be referred to as the bazar market standard . Messrs . F. F. Chrestien and Co. have for many years been shipping block mica according to certain brands : " Tiger Clear " , " Tiger ...
Page 54
... approximately 1 cwt of high quality mica to between 10 and 12 cwts low quality mica . Practically the whole of the 9 percent of high quality mica is exported as block mica and condenser films ( the latter very small in quantity but ...
... approximately 1 cwt of high quality mica to between 10 and 12 cwts low quality mica . Practically the whole of the 9 percent of high quality mica is exported as block mica and condenser films ( the latter very small in quantity but ...
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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