Records of the Geological Survey of India, Volume 73, Parts 1-2Government of India, 1938 - Earthquakes Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 229
... wolfram is yellow , but the two are optically continuous and there is no reason to suspect that they are of ... wolfram and is occasionally interstitial to quartz . Instances of its replacement by lepidolite and muscovite were noted ...
... wolfram is yellow , but the two are optically continuous and there is no reason to suspect that they are of ... wolfram and is occasionally interstitial to quartz . Instances of its replacement by lepidolite and muscovite were noted ...
Page 236
... wolfram ( W ) . Quartz ( Q ) . P. S. 252. X 54 . FIG . 2. - Cassiterite ( C ) and molybdenite ( M ) interstitial to wolfram ( W ) . Bakelite ( B ) . P. S. 251. Crossed nicols . X 54 . FIG . 3. - Wolfram ( W ) partly enclosing a ...
... wolfram ( W ) . Quartz ( Q ) . P. S. 252. X 54 . FIG . 2. - Cassiterite ( C ) and molybdenite ( M ) interstitial to wolfram ( W ) . Bakelite ( B ) . P. S. 251. Crossed nicols . X 54 . FIG . 3. - Wolfram ( W ) partly enclosing a ...
Page 242
... wolfram and other minerals and occasionally replaces patches of wolfram . Under the reflecting microscope it is readily distin- guished by its softness , a reflectivity which is just lower than wol- fram , and its pale yellow to white ...
... wolfram and other minerals and occasionally replaces patches of wolfram . Under the reflecting microscope it is readily distin- guished by its softness , a reflectivity which is just lower than wol- fram , and its pale yellow to white ...
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Common terms and phrases
A. L. Coulson Abstract andradite anticline Aravalli bands beds Bengal Bihar biotite bismuthinite Bombay Burma calcareous calcite Calcutta cassiterite chaung coal collection colour conglomerate Congr Cretaceous crystalline Current Science Deccan trap deposits district earthquake east eastern Eastern States Agency Eocene fault feet felspar formation fossil galena garnet Geol Geological Survey Geologist Ghosh gneisses gneissic granite gravel grey hill intrusions Kashmir Khasi Kyaukse Lahiri Lameta laterite limestone mapped metamorphic metamorphosed meteorite miles minerals Mining Journ muscovite Nala North-West Frontier Province noted occur outcrops Panjal trap pegmatite phyllites Plateau Limestone Proc Punjab pyrite quartz quartzites replaced reports reservoir ridge river rocks Sahni sandstones scheelite schists Science and Culture shales sheet 93 shock Siwalik slates south-west southern specimens sphalerite Surv Survey of India tahsil Tertiary tons tourmaline Twenty-fourth Ind Upper Siwaliks valley veins Waziristan wolfram