Bulletin of the United States Geological SurveyThe Survey., 1903 |
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Al2O3 Fe2O3 FeO Alkalies Analysis by George Analysis by W. F. Bulletin 167 Bulletin 20 CaO MgO H₂O Chemistry and Physics Clarke and Schneider Clarke in Bulletin CO₂ Colo Colorado Corundum Corundum Hill Cr₂O3 Cross and Hillebrand crystals Described by Cross described in Bulletin Discussed by Clarke E. A. Schneider Elliott County equivalent to F F. W. Clarke Fe,O Fe₂O Feldspar gabbro Geological Survey George Steiger green Gunnison County H₂O above 100 Hillebrand and described Hillebrand in Bulletin Ignition Insoluble J. E. Whitfield Jour K₂O L. G. Eakins Leucite Llano County mica MnO CaO MgO N. Y. Analysis Na₂O K₂O P₂O peridotite Pikes Peak Pyroxene R. B. Riggs rocks Schneider in Bulletin serpentine SiO2 Specific gravity T. M. Chatard Table Mountain tourmaline trace 07 trace CaO trace MgO trace trace trace undet United States Geological uraninite W. F. Hillebrand W. H. Melville
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Seite 18 - ELPASOLITE. From St. Peters Dome, Pikes Peak district, Colorado. Described as a new species by Cross and Hillebrand in Bulletin 20. Incomplete analysis on insufficient material, by WF Hillebrand. The fluorine was deduced by calculation on the assumption that the metals are fully combined with it. Al 11.32 Ca _ .72 Mg .-.. .22 К 28.94 Na_.-_ , 9.90 F .. . . . 46.98 98.08 GEARKSUTITE.
Seite 10 - Described as a new species by WH Melville, Am. Jour. Sci., 3d ser., vol. 43, 1892, p. 509. Waterworn pebbles. Sp. gr., 6.204. The silicate admixture, including the water, amounts to 13.38 per cent, of which 12.88 per cent, soluble in hydrochloric acid, is serpentine. The insoluble portion may be bronzite. Analyses of the silicates are as follows...
Seite 74 - Analysis by EA Schneider. The loss is due to undetermined volatile matter. C. Brown mica from the granite of the Yosemite Valley, California. Analysis by William Valentine. Described by Turner, Am. Jour. Sci., 4th ser., vol. 7, p. 294.
Seite 111 - Bulls. 78 and 90. In the original publications the gaseous constituent of uraninite was supposed to be nitrogen, as indeed it was in part. The discovery of helium, however, has shed new light upon the subject, and the analyses have been corrected accordingly. A, B, C, D, E. Crystallized uraninite from Bale's quarry, Glastonbury, Connecticut.