| | Journal (article/letter/editorial) | from the Oligocene Siebengebirge Volcanic Field (Germany): Implications for the Origin of Intracontinental...UNIVERSITA«T BONN, POPPELSDORFER SCHLOSS, 53115 BONN, GERMANY 2 OMYA DEVELOPMENT AG, BASLERSTRASSE 42, 4665...MINERALOGIE, ZU«LPICHER STR. 49A/B, 50674 KO«LN, GERMANY 5 INSTITUT FU«R MINERALOGIE, UNIVERSITA«T MU«NSTER...MU«NSTER, CORRENSSTRASSE 24, 48149 MU«NSTER, GERMANY RECEIVED JUNE 27, 2011; ACCEPTED JULY 11, 2012 ADVANCE...scenarios, either extensional tectonics in the north Alpine realm or upwelling of deep mantle material | | | Book | apatite orthoclase - --=====------- quartz topaz corundum - = =------ diamond Fig. 2 Absolute and relative...green aquamarine turns blue. Recently, diamond, corundum and topaz have been found to display richer colour...Asterism exhibited by a suitably cut diopside or corundum is due to the reflection of light from tiny inclusions...true colour of a mineral is found by Fig. 4 Cut corundum crystal exhibiting asterism 14 determining...index of 1.3-1.9, such as fluorite, quartz and corundum. Greasy lustre is a self-explanatory term . This | | | Book | green aquamarine turns blue. Recently, diamond, corundum and topaz have been found to display richer colour...Asterism exhibited by a suitably cut diopside or corundum is due to the reflection of light from tiny inclusions...true colour of a mineral is found by Fig. 4 Cut corundum crystal exhibiting asterism 14 determining...index of 1.3—1.9, such as fluorite, quartz and corundum. Greasy lustre is a self-explanatory term. This...Occurrence: common; large deposits in (China), (North Korea), (Canada), (USSR), (Austria) and (Czechoslovakia); | | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | Fritz: Bergakademie Freiberg, Freiberg, Saxony, Germany. Donald B. Hoover: U.S.G.S., Federal Center, Lakewood...Institut fur Mineralogie, Ruhr Universitat Bochum, Germany. Duane Mellor: Geology Library, Yale University...Berlin, Germany. Peter Susse: MINABS, Inst. of Mineralogy, Univ. of Gottingen, Gottingen, Germany. C. Sheldon...Pennsylvania. Hans J. Wilke: Eppertshausen/Hessen, Germany. Wendell E. Wilson: The Mineralogical Record, Tuscon...Harder The hardest known mineral 8 9 10 Topaz Corundum Diamond Hardness is an easily measured and valuable | | | Report (issue) | and Lossen, Lehmann, Reyer and Rot,hpletz in Germany and Austria, it became evident that we were all...others like that from the" Arso Strom," Ischia, Perlenhardt, Brokasch and Alschberg are probably andesytes...gabbros or diorytes, No. 30:"5, from the outlet to North lake, and No. 33-1 from Pipestone Rapids. The best... by the pressnre and grooving produced by the corundum used in grinding the section, which changed the...structure is a~,tributed to the action of the corundum used in grinding the section, which has grooved | | | Book (volume) | Microcline perthite, syenite, Plauen, near Dresden, Germany (Byelyankin & Tomkeieff, 1916). 0-*^ °"*»- India...(“anorthoclase”), Drachenfels, Siebengebirge, Rhine, Germany (Spencer, 1937). Anal. E. Spencer. 10. Twinned...Vogelsberg, Hesse, Germany (Tilley, 1958). Anal. J. H. Scoon. 14. Sanidine, Eifel district, Germany (Kozu & Seto...probably from basaltic tuff, Eifel, Rhineland, Germany (Spencer, 1937). Anal. E. Spencer. 16. Sanidine...cross-hatching, riebeckite trachyte, Berkum, Rhine, I Germany (Byelyankin, 1916). 13. Anorthoelase, Grande | | | Book (volume) | Sade beck, Angew. Kryst. 1876 Taf. 4 Fii, 83 (Perlenhardt, Siebengeb.). » )) )) )) )) Pogg. Ann. 1868....(Glimmer gruppe) Corundophilit . s. Chloritgr uppe Corundum . = Korund Cossait . = Par agonit (Glimmergruppe) | | | Book (volume) | 3) O. vom Ra th, Verh. naturhist. Ver. d. preuß. Rhein!. u. Westphalens 32,88 (1875). 4) B. }. Harrington...20 Na2 0 K2 0 . MgO CaO MnO feO. Al 2 0 s fetOS Sieg f H2 0 3,98 0,41 10,71 13. 4,09 0,79 10,89 14... 125. Rote Lamellen des Perthits aus Pegmatit, North Burgess (Canada)j anal. D. Gerhard, Z. Dtsch. geol...Mallet, Ch. N. 44, 189 (1881). 155. Sanidin, Perlenhardt (Siebengeb.); anal. Lewinstein, joum. prakt....C. R. 36, 484 (1853). 188. Aus Gabbro isoliert, North. fowl Lake lMinnesota); anal. W. f. Hillebrand bei |
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