 | | Book | | Hartenstein Germany a.hiller@wismut.de Dr. Manfred Schauer Am Hexenberg 8 09224 Chemnitz Germany Günter...Florastraße 17 09131 Chemnitz Germany Udo Zimmermann Am See 16b 01796 Pirna Germany ISBN: 978-3-540-78553-8 ISBN...(Hungary), H. J. Förster (Germany), R. Fritsche (Germany), A. Hiller (Germany), J. Hruby (Czech Republic)... Bojkov (Bulgaria), H. Schleicher (Germany), W. Schuppan (Germany), A. Steenfelt (Denmark/Greenland)... Chapter 7 Germany . . . . . . . . . . . . . . . . . . . 7.1 Erzgebirge, State of Saxony . . . . . . |  | | Journal (issue) | | Werner Lieber Heidelberg, West Germany Olaf Medenbach Bochum, Germany Eric Offermann Arlesheim, Switzerland...Bancroft The occurrence of Japan-law twinning in quartz ... 137 by R. B. Cook Hureaulite and barbosalite...Himmelsfurst mine, Freiberg, East Germany Ilfeld mine, Ellrion, East Germany George Wagsfort mine, Johanngeorgenstadt... East Germany Neudorf mine, Harz Mountains, East Germany Annaberg mine, Annaberg, East Germany Pucher-Schacht...mine, Schneeberg, East Germany Schneckenstein mine, Gottesberg, East Germany Grube Samson, St. Andreasberg |  | | Book (volume) | | Jadeite (Chloromelanite) Quartz . A. Crystallised Quartz . Rock-crystal .... Smoky-quartz .... Amethyst ........ Citrine ..... Rose-quartz .... Prase .... Sapphire-quartz Quartz with enclosures . . . . 420 420...Cat’s-eye . . . . Tiger-eye. . . 491 493 B. Compact Quartz Hornstone .... Wood-stone .... Chrysoprase ...... „ the same, cut ., pale yellow crystals : Saxony 3a. 4. ,, the same, cut . 331, 333 331 333...: Elba . and . green . .... enclosures Smoky-quartz, crystals ,. .35, c. „ 4a, 5. „ „ cut |  | | Book (edition) | | very old origin, often without lrnown source. e.g. quartz or cinnabar. Current practice most often names...polished mineral surface, expressed in clase. 7 - quartz. 8 - topaz, 9 - corundum, 10 - dia- percentage...purine-porphyrine group). a nickel porphyrine. With quartz. rutile, piemontite, sursassite, ardennite, Triclinic...the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from the Rabejac deposit, Herault dept.. France... = = = = = Acanthite, x 16 mm, Freiberg, Germany, H Abernathyite, 12 mm, Ririera/, France, H Abhurite |  | | Book | | 3,200 A. Short wavelengths are produced by cold quartz tubes utilizing mercw-y vapor ionization at low...liquid jn a field of low magnification. Much dark smoky quartz owes its coloration to alpha-particle bo1nbardment...concentrations of radioactive elements can also darken quartz, as well as adjacent radioactive grains, although...of time ( Marshall, 1955). Not all gray to black quartz is discolored by radiation ; in some the dark color...that can display this property include feldspar, quartz, mica, calcite, dolomite, and fluorite. Rocks such |  | | Book | | Gottfried-Wilhelm-Leibniz University Hannover, Germany Responsible Series Editor: F. Pirajno ISSN 1876-1682...constituents the three rock-forming minerals feldspar, quartz and mica, which in places develop mega-crystals...material extracted from pegmatites is feldspar, quartz and mica, and only a tiny fraction of pegmatites...rocks in the Bohemian Massif, which is shared by Germany, the Czech Republic, Poland and Austria, has been...is not yet exhausted as far as the high-purity quartz at the core of the pegmatite is concerned. In comparison |  | | Book | | 123 Florian Neukirchen Berlin, Germany Gunnar Ries Marxen, Germany ISBN 978-3-030-34345-3 ISBN 978-3-030-34346-0...questions, or otherwise supported us. Berlin, Germany Marxen, Germany June 2019 Florian Neukirchen Gunnar Ries...Pumice, Perlite, Pozzulan, and Trass . 7.4 Feldspar, Quartz, and Mica . . . . . . . . . . . . 7.5 Clay and...works at CRB Analyse Service GmbH in Hardegsen (Germany) and in his spare time blogs about geoscientific...Friedrich-Christian Mine in Wildschapbach, Black Forest (Germany) (photo © F. Neukirchen, Markl Collection/Tübingen) |
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