 | | Journal (article/letter/editorial) | | Schellerhau Granite Complex, Eastern Erzgebirge, Germany Received: 28 October 1998 / Accepted: 18 August...the Schellerhau granites (Eastern Erzgebirge, Germany) is shown on the basis of quartz textures. Similar...GoÈttingen, Goldschmidtstr. 3, D-37077 GoÈttingen, Germany e-mail: amuelle6@gwdg.de R. Seltmann GeoForschungsZentrum...GeoForschungsZentrum Potsdam Telegrafenberg, D-14473 Potsdam, Germany H.-J. Behr Institut fuÈr Geologie und Dynamik der...GoÈttingen, Goldschmidtstr. 3, D-37077 GoÈttingen, Germany Present address: R. Seltmann Natural History Museum |  | | Journal (issue) | | rgmeralci,r.(j>ar6en,&rmany r [gmerald~f.G.raroen,Germany--11' I Le Lechleitner.Austria Le Lechleitner...turning. But spare a thought for the m e n w h o mine these essential raw materials, the intrepid adventurers...tremendous compression imposed by superincumbent, solid upper layers, and by internal stresses. Consequently,...not a yellow sapphire. It could be a topaz or a citrine. T h e 10 x lens could not detect which because...it is extremely difficult to detect topaz and citrine with a hand-lens. W h a t about the hardness test |  | | Journal (issue) | | large rubellite crystals were found in the pegmatite mine at Sakangyi. Furthermore, Bauer (Spencer transi... J. Gemm., 1991,22,8 I Ü ^ ^ ^ ^ ^ ^ ^ ^ Ä * » ! IM ^^^^SSffiS^ffiS^^ Fig. 1. Portrait (original in...kaha palingu. "A lighter coloured smoky Topaz". Citrine. Brown Crystal: tillia palingu (both Malab. & Singhal)... 3. Zircon crystals showing common forms, the upper two examples being noted very frequently frequently...the yellow and brown crystals correspond to our citrine and smoky quartzes. But in the same breath Thunberg |  | | Book | | [(OH)5 (P04)4]' 6 H20 (monoclinic, brown) Rotlăufchen Mine near Wetzlar/FRG Original size 5 x 6 mm ISBN-13:...core and the lighter silicates "floated" to the upper levels. As the temperature of the surface further...crust of the earth is separated from the underlying upper mantle by a discontinuous interface, as shown through...a deeper view of the crust in mines. The deepest mine shafts are those of the gold mines in the Witwatersrand...in the sedimentary copper deposits at Mansfeld, Germany. Other than in jewelry and silverware, its main |  | | Journal (issue) | | Schumacher Graphite (35 x 32 cm) of the Alibert Mine, Botogol Mt. in Siberia, rough materiaL two pencils...Haidinger in 1859 1842 in the Tsarevo-Alexandrovskaya mine near Tashkurganka River, Miass, Urals. The original...1960-es a set of tllree large crystals of topaz and citrine facetted in Faberge egg style, but without any...Wien. Haidinger W ( 1859): Die grosse Platin-Stufe im k.k. Hof-Mineraliencabinet, Geschenk des Fursten...48-52. Niedermayr, G. (1989): Die EdelsteinsammJung im Naturhistorischen Museum in Wien.- Goldschmiede u |  | | Book | | Such Central and Eastern Europe regional names as Bavaria, Bohemia, Saxony, Tyrol, and many others, are generally...as agate, amethyst, carnelian, chalcedony, and citrine). The total number of mineral species is relatively...as agate, amethyst, carnelian, chalcedony, and citrine). The total number of mineral species is relatively...dependent on the generosity of aristo¬ crats, as in Germany or Russia. Povarennykh would like to see a rational...Scotland, Ireland, Sweden, Norway, Denmark, Finland, Germany, France, Italy, Spain, Portugal, Belgium, Austria |  | | Book | | Gubelin, Lucerne Typesetting: Satz Weise, Fohren, Germany Photolithos: Job Color srl, Gorle (Bergamo) Printing:...tourmaline crystals from William Larson’s Stuart Mine in the Pala Mountains, California (USA). Next to...quartz from the hydrothermal deposits of the Muzo Mine, Colombia. Collection: Mineralogical Institute of...crust) that follows the rigid zone of the earth’s upper mantle. From a chemical standpoint, the rock stratum...[kneaded mass]) can already be present in these upper ample, crystalline schist, marbles, skarns, and |  | | Report (issue) | | Weise Verlag, Munich, Germany German Edition © Christian Weise Verlag, Munich, Germany ISBN 3-921656-42-7...America Photo Credits Cover: Topaz, 3.5 cm tall Capao Mine, Ouro Preto, Minas Gerais, Brazil Max and Jon Sigerman...2.52 carats) from Katlang, Pakistan, adorn the upper wings, with a matched pair of pink Russian topazes...Occurrence MIKE MENZIES 22. Topaz from Utah's Maynard Mine RYAN BOWLING 26. Volodarsk-Volynski PETER LYCKBERG...DUDLEY BLAUWET 58. Zimbabwe Blue Topaz: St. Anne's Mine JAN KANIS 60. Brazil: The Land of Topaz DIETMAR |  | | Journal (article/letter/editorial) | | LIEBER Baden-Baden Straaae 3 69126 Heidelkrg, Germany I Downloaded by [RMIT University Library] at...have been rotated 180"with respect to the left upper side. The twin axis is normal to the plane of rotation...courtesy of author Werner Lieber and show director Johannes Keilmann. Volume 74, SeptemberlOctober 1999 ...section of an ametrine (part amethyst and part citrine) crystal, 4 cm across, with good visible twin lamellae...11. Japan-law quartz twin, 2 cm high, from the PC mine, Jefferson County, Montana. Figure 10. A: Quartz |  | | Book (edition) | | in Poland; shores of East Germany; Sicily; Mediterranean Sea off Sicily; Upper Burma; and Rumania. See...consists of retailers, wholesalers, manufacturers, im- DICTIONARY OF GEMS porters or publishers in...Quartz cat’seye, from Hof and other locations in Bavaria which produce only a few stones of fine quality...Quartz cat’s-eye from Harz Mountains in north of Germany is sometimes sold as Bavarian cat’s-eye. bayate...on the crown of a round brilliant cut gem, the upper points of which join the table and the lower stone |  | | Journal (issue) | | occurrence of star apatite • Chalcedonyopal cameo • Citrine from Madagascar • “Sugarcane Emerald” from Brazil...vivid green and blue copper-bearing tourmalines at a mine in northeastern Brazil, Emmanuel Fritsch headed...Ia diamonds are typically a product of the Argyle mine in Australia (King et al., 2002). Type Ib diamonds...come from India and the Cullinan (formerly Premier) mine in South Africa (King et al., 1998). HOW DO SCIENTISTS...“Gray-to-blue-toviolet hydrogen-rich diamonds from the Argyle mine, Australia,” Spring 2009 G&G, pp. 20–37). This marquise |  | | Journal (issue) | | au China: 20 cm lange Malachit-Stalaktiten. Shilu Mine, Yangchun Co., Yangjiang, Guangdong, China. Escaut...stehen Hunderte Yon Stiicken , teils bester Qualitat. Im Keller stapeln sich Dutzende von Gemiisekisten. voll...Mineralarten in altem Sammlungsmaterial aus Menzenschwand im Schwarzwald (L 5/2022). Und zur sicheren, moglichst...beobachteten: So entdeckte der Mineraloge Rene Just HADY im Jahr 1781 die RegelmaI3igkeit von Kristallen, indem...zu finden sind sie i.iber einen interaktiven Plan im Internet (www. sainte-mariemineral.com). Offnungszcitcn: |  | | Journal (issue) | | quartz) of colored quartz (Balitsky, 1980).But with citrine and amethyst so abundant and relatively inexpensive...Schmetzer, of the University of Heidelberg, West Germany, that credit must be GEMS &. GEMOLOGY Fall 1986...c of Brazil law twinning in natural amethyst. Citrine that has been produced by heating natural amethyst...quartz, sometimes called "ametrine" or amethyst/citrine (figure 131, usually behaves differently. Koivula...is present in the amethyst zones, whereas the citrine zones are untwinned (figure 14). Thus, ame- Identification |  | | Journal (issue) | | attached a vertical a r m which is bent over the upper surface of the box. A disc of polaroid is let into...directly above a second disc of polaroid, let into the upper surface of the box. T h e discs are fixed in the...consisted of a shallow plastic cap, closed at its upper end with a thin glass plate which served as a table...Biehler of Messrs. Ernst Färber, Munich, West Germany, for having placed at his disposal the new material...David Alex, Ayr Schupp, Heinz, Pforzheim, West Germany Staatsen, Albertus Claudius, Utrecht, Holland Summerhayes |  | | Journal (issue) | | ethical concepts all along the supply chain, from mine to market. For the moment, only a small number of...gemstones by master carvers in Idar-Oberstein, Germany, entitled And Thou Shalt Breathe Life into a Gem...operate in the future. The remediation of existing mine sites represents a significant opportunity.” Images...Dangerous for humans and cattle. slope failures, mine collapse. Livelihood source (agriculture) disappears...mitigation of impacts during the activity period of the mine. • • • • • • Recommendations and conclusions |  | | Book | | Sorbonne, man Mineralogical Museum, Moscow, U.S.S.R. GERMANY j}& BONA POTENZA BIANCHI, Curator, % «G. P....HOFMANN, Professor, School of Mines, Freiberg, EAST GERMANY }& GEORGE HOLLOWAY, collector, Northridge, California...Professor, Mineralogical Institute, Bonn, WEST GERMANY ¥& H. J. SCHUBNEL, Professor and author, School...stood atop the “mother” mass of blue-colored rock. A mine was started and a shaft was sunk into the rock....crystal, still imbedded in the country rock, to the mine manager, Mr. F. Wells. With his pocketknife Wells |  | | Report (issue) | | CT Concept & Design Maximilian Glas, Starnberg, Germany English Edition © 2003 by Lapis International,...cm high calcite twin on {1 OTI} from the Leiping mine, Guiyang County, Hunan, China. Collection Frederic...in Basal, Switzerland; photo Walter Gabriel Back upper left: A perfect 5 cm wide calcite twin on (0001}...Collection Victor Yount; photo Jeff Scovil Printed in Germany Licensed edition in the English language of extraLapis...Weise Verlag, Munich, Germany German Edition © Christian Weise Verlag, Munich, Germany ISBN 3-921 656-44-3 |  | | Journal (issue) | | • Gewinnspiel für das Publikum (Mioeralienstufe im Wert von l.000,--) • Tischprämierung (Pokale, Urkunden)...Ju t Botallack Mine Skarne bei Botallack (,,Grylls Bunny") Wheal Edward Old Levant Mine Geevor Tin Mines...Mines Lower Bostraze Pit Penlee Quarry Old Wherry Mine St. Michaels Mount - Der Grubenbezirk St. Ives-Hayle...Consols Wheal Trenwith (Greal) Wheal Alfred 1-lerland Mine Penberthy Crof1s Rinsey-Tremearne WheaJ Penrose...Börsennachträge Neue Bücher Kleinanzeigen Sie lesen im Juni Literaturhinweise 4 4 4 33 39 42 42 RECHTE |  | | Journal (issue) | | Petrography, Heidelberg University, West Germany † Idar-Oberstein, West Germany. The Zambian emerald deposits...importance. According to Kanis (1980), the first mine (Miku) was given up in 1972. In the neighbourhood...materials from glass to corundum and the garnets. The upper range includes quartz, zircon, diamond and the man-made...Aldinger, 7000 Stuttgart-1, Lenbachstrasse 1, West Germany. [Manuscript received 5th December, 1980.] 459...abstract.) Precious and common opal from the Hosaka mine were studied optically and by TEM. The precious |  | | Book | | Häger Dr. Tobias Häger studied mineralogy at the Johannes Gutenberg-University of Mainz. He focused his...projects in cooperation with the ceramic industry in Germany, and has experience of the heat treatment of rubies...department of Projekt-Consult GmbH in Königstein, Germany. He has accumulated extensive experience in small-scale...Universities in Johangeorgenstadt and Berlin, Germany in Hydrogeology, Geology and Mineralogy he completed...Institute for Gemstones at the Johannes Gutenberg University in Mainz, Germany. Back in Sri Lanka, after a |  | | Journal (issue) | | September, 1952. 321 Feature of AMETHYST AND CITRINE INCLUSIONS by Norman H. Day, F.G.A. A M E T H...the island are red jasper, agate, rock crystal, citrine, smoky quartz and some amethyst—most quartz crystals...Reigate. Fifield, Lawrence John, St. Albans. Velden, Johannes van der, Amsterdam. Flood, Frank, London. Whelan...Birmingham. Neerbye, Erling, Oslo. Niemans, Hendricus Johannes, Amsterdam. Noye, Leonard George, Ipswich. Oliver...treatment, gems, 127 — New gem materials, 311 Citrine, inclusions in, 322 Classification of colour in |  | | | | the earth. The word mineral comes from the word mine, which, of course, means “a hole dug in the earth...QUARTZ ROSE QUARTZ CHALCEDONY (Chrysoprase) CITRINE AMETHYST AGATE Although it appears to be,quite...sometimes enormous. A piece of silver found in a mine in Canada was nearly 100 feet long and 60 feet thick...fine long road just to carry salt from a distant mine to the city of Rome. The Roman soldiers received...ago, someone—probably a Ger¬ man goldsmith named Johannes Guten¬ berg—got the idea of making a mold for |  | | Book | | Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the...Oblast. Alpine-type clefts in the famous Dodo quartz mine commonly contain ilmenite, occurring as lustrous...ilmenite crystals as described here for the Dodo mine. In general, ilmenite crystals from the Subpolar |  | | Journal (issue) | | R . I . in a biréfringent stone seems to be the upper one, as might be expected. W h e n a peridot (R...contrast to the rest. Such stones as topaz or citrine can be separated quite easily, even in settings...smoky quartz to find out whether it will turn to citrine colour for gem purposes. 4 illus. R.W. GROWNINGSHIELD...Reports another diamond found at the Murfreesboro mine. A sapphire with a colour change from green to light...occurrence of amethyst in Northern Rhodesia in a mine known as the Curlew Amethyst Deposit. Amethyst was |  | | Book (edition) | | of the Turquoise sea gently drifting on to the Citrine shore, edged by lush Emerald plantation is something...Quartz Champagne Topaz Chrysoberyl Chrysoprase Citrine 23 25 27 35 35 36 37 38 41 42 43 43 47 48 51 52...discovered. Ruby from Murgab; Spinel from Kuh-i-Lal mine; Turquoise from Eastern Tajikistan, plus Emerald...from the Kuh-i-Lal mine in Afghanistan. Writings by Marco Polo suggested that the mine was said to be the...gem mine in the world still in operation and records trace its operations back to 101AD. This mine yields |
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