Records of the Geological Survey of India, Volume 76, Part 10Geological Survey of India, 1942 - Earthquakes |
From inside the book
Results 1-3 of 13
Page 17
... mica by the terms " high quality and " medium quality " mica respectively , and also to replace " non- munitions ... built - up mica are entirely unrelated to waste , scrap , or ground mica , as they are used for completely different ...
... mica by the terms " high quality and " medium quality " mica respectively , and also to replace " non- munitions ... built - up mica are entirely unrelated to waste , scrap , or ground mica , as they are used for completely different ...
Page 20
... built - up mica board , the crease at the V - angles being usually reinforced with an extra thickness . The smaller sizes , up to 3 inches diameter , are stamped , whilst the larger sizes , which may be over 30 inches dia- meter , are ...
... built - up mica board , the crease at the V - angles being usually reinforced with an extra thickness . The smaller sizes , up to 3 inches diameter , are stamped , whilst the larger sizes , which may be over 30 inches dia- meter , are ...
Page 59
... Built - up mica . The splittings used in the manufacture of built - up mica are made almost entirely in India , with a relatively small amount from Canada , and also from Madagascar which has almost superseded the phlogopite from Canada on ...
... Built - up mica . The splittings used in the manufacture of built - up mica are made almost entirely in India , with a relatively small amount from Canada , and also from Madagascar which has almost superseded the phlogopite from Canada on ...
Other editions - View all
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