| | Journal (article/letter/editorial) | author Variscan lamprophyres occur in the greisen tin-, tungsten- and molybdenum-ore district of Krupka...microgranites and mafic dykes associated with late Variscan tin-bearing granites and include minettes, kersantites...magmatic activity, which produced isolated lah c Altenberg Cze blic Sn u vas, feeding necks or dykes of p...location of the Cínovec/Zinnwald, Krupka and Altenberg Sn–W–Mo deposits (modified from Wasternack et...rhyolites (predominantly ignimbrites) related to the Altenberg–Teplice Caldera (ATC) (Mlčoch and Skáce- lová | | | Journal (article/letter/editorial) | Sammlungen Brennhausgasse 14 09599 Freiberg, Germany andreas.massanek@geosamm.tu-freiberg.de Downloaded...Schloss Freudenstein Schlossplatz 4 09599 Freiberg, Germany christina.seifert@geosamm.tu-freiberg.de Figure...KRÜGERHAUS A New Permanent Exhibition in Freiberg, Saxony, Germany 212 ROCKS & MINERALS N ative silver, in...mineral localities in just Germany. Figure 3 (above). Krügerhaus in Freiberg, Germany. Detlev Müller photo...Churprinz Friedrich August mine, Großschirma, near Freiberg, Saxony, Germany. Jeff Scovil photo. A Mineralogical | | | Journal (article/letter/editorial) | wt.% GeO2 was found in topaz from the Silver Leaf Mine, Manitoba, (Papish, 1929). Seim and Schweder (1962)...topaz in some tin deposits in the eastern Erzgebirge) from Zinnwald, Sadisdorf and Altenberg (9 individual...et al., 2010). Krieselite from the Tsumeb copper mine, Namibia, contains up to 0.102 a.p.f.u. Ga substituting...albite-zinnwalditetopaz granite Podlesı́ stock, quartz-topaz-zinnwaldite greisen Krásno (Schlagenwald in German literature)...finegrained albite-zinnwaldite granite Altenberg, coarse-grained quartz-topaz-zinnwaldite rock at the upper | | | Journal (issue) | Länttä 1 Sakatti Juomasuo Suhanko STATUS Active mine R-R o Kylylahti Hautalampi J tC Länttä H...Advanced exploration project SAP 0.1 1 Sotkamo Mine project Kylylahti Talvivaara / Sotkamo Rompas-Rajapalot...only c Mineral reserves only as Boliden planned the mine closure for autumn 2020. Previous estimate (2018):...plant in Finland 7 PROJECTS & MINES Ac�ve mine Mine project Advanced explora�on project BOLIDEN Kevitsa...applied to conflict minerals in Africa (coltan, tin) but limited to ores and concentrates, i.e., upstream | | | Journal (article/letter/editorial) | lepidolite–albite granite grading continuously into zinnwaldite granite in fine-grained and medium-grained variants...Bi, Mo, Nb, Rb, Sn, Th, U, Y, W, and Zr. The zinnwaldite/lithian annite transition in the granite profile...manifested by pervasive development of lepidolite and zinnwaldite at the expense of earlier lithian annite and...Keywords: Cínovec/Zinnwald, A-type granite, zinnwaldite, lithian annite, rare-metal mineralization Received:...and White (1974) suggests their association with tin mineralization. In-situ fractional crystallization | | | Journal (article/letter/editorial) | in a tin granite ± case study from the Schellerhau Granite Complex, Eastern Erzgebirge, Germany Received:...history of tin-bearing granitic magma forming the Schellerhau granites (Eastern Erzgebirge, Germany) is shown...evolved residual melts that enable the formation of tin deposits. This study contributes to a better understanding...of the development and behaviour of fractionated tin-bearing granitic melts, and links quartz cathodoluminescence...GoÈttingen, Goldschmidtstr. 3, D-37077 GoÈttingen, Germany e-mail: amuelle6@gwdg.de R. Seltmann GeoForschungsZentrum | | | Journal (article/letter/editorial) | high-relief topaz; (H) Topaz-zinnwaldite alkali-fedspar granite of Eibenstock, Germany re (Ditterová, 2014)...Pl, plagioclase; Qz, quartz; Tpz, topaz; Znw, zinnwaldite. Pegmatitic topaz has highly variable grain...al., 2005); (F) Rock ro from the endogranitic tin zone alteration assemblage, Mount Pleasant, New Brunswick...Pl, plagioclase; Qz, quartz; Tpz, topaz; Znw, zinnwaldite. wt.% (Deer et al., 1997), XOH = 0, and on the...Range, Utah, USA. At Qiguling, in the Qitianling tin district, China, Xie et al. (2013) described topaz | | | Journal (article/letter/editorial) | and rhyolites of A-type form the fill of the Altenberg-Teplice Caldera (ATC), thus demonstrating the...Mts. have been, for their obvious association with tin mineralization, investigated in detail petrographically...et al., 1987, 1992). Geochemically, two types of tin-bearing granites were distinguished, namely high-phosphorus...Breiter / Lithos 151 (2012) 105–121 albite–zinnwaldite–topaz alkali feldspar leucogranites (Krudum,...hory Mts. They form the small Bergen pluton in Germany and several intrusions in the Slavkovský les area | | | Journal (article/letter/editorial) | locality); 8. tin granites and greisens of Cornwall, England, and France; 9. Erzgebirge district, Saxony, Germany;...Gilgit pegmatite district and Katlang, Pakistan; 13. Tin granites of Jos plateau district, Nigeria; 14. Namibia... gem gravels of Sri Lanka; 18. Myanmar-Thailand tin pegmatite belt; 19. Transbaikal area (includes pegmatites...May 2015 Figure 3 (above). Topaz, Little Three mine, Ramona, San Diego County, California. NMNH specimen...131821. figure 9 (left). Topaz, 10.5 em long, Dassu mine, BaItNan, Pakistan. NMNH specimen 165994. figure | | | Report (issue) | KLiFe2+ Al(AlSi3 )O10 (F; OH)2 Zinnwaldite ° c 2001 Mineral Data Publishing, ver sion 1.2 Crystal...O10[F 1:66 (OH)0: 41 ] §=2:07 : (2) Sadisdorf, Saxony, Germany; by electron microprobe, Li2 O and Fe2+ :Fe3+...2M1 ; 3A polytypes. Mica group. Occurrence: In tin-bearing pneumatolytic deposits in greisen; more rarely...(Zinnwald), Czech Republic. At Altenberg, Saxony, and Waldstein, Bavaria, Germany. From TÄo rdal, Norway. Around...Windle, and I.H. Warren (1963) The occurrence of zinnwaldite in Cornwall. Clay Minerals Bull., 5, 151{156 | | | Journal (article/letter/editorial) | glauconite, phlogopite, biotite, lepidolite, zinnwaldite, margarite, and clintonite, while recognizing...familiar names such as biotite, lepidolite, and zinnwaldite do not appear in the tables. These terms have...Muscovite crystals forming a 10-cm rosette, Jose Pinto mine, Minas Gerais, Brazil. Table 3. Interlayer-deficient...aluminoceladonite and between muscovite and celadonite. Zinnwaldite: trioctahedral micas on, or close to, compositions...spectacular recent find of muscovite was at the Jose Pinto mine, where more than a ton of beautifully crystallized | | Webster, Jim, Thomas, Rainer, F�rster, Hans-J�rgen, Seltmann, Reimar, Tappen, Christine (2004) Geochemical evolution of halogen-enriched granite magmas and mineralizing fluids of the Zinnwald tin-tungsten mining district, Erzgebirge, Germany. Mineralium Deposita, 39 (4) doi:10.1007/s00126-004-0423-2 | Journal (article/letter/editorial) | mineralizing fluids of the Zinnwald tin-tungsten mining district, Erzgebirge, Germany Received: 27 October 2003...associated with tin- and tungstenmineralized granites of Zinnwald, Erzgebirge, Germany. Prior research...GeoForschungsZentrum-Potsdam, Telegrafenberg, 14473 Potsdam, Germany H.-J. Förster Institute of Earth Sciences, University...University of Potsdam, P.O. Box 601553, 14415 Potsdam, Germany R. Seltmann Department of Mineralogy, CERCAMS,...and significant quantities of topaz and F-rich zinnwaldite. The computed abundances of the latter phases | | | Journal (article/letter/editorial) | M•ROSL^V •rv.MrRolc^m) Z•)•.N½.•c gULC•.•C Abstract A tin-tungsten-bearing granitecupolain the Kru•n• hory...elementcontentdownwardwas found. Increased amountsof tin andtungstenare associated with greisens,quartzveinsor...of the Earth's crust not exposedby drilling and mine workings. chain approximately130 km long in a NE-SW...hory Mts. are an anticlinoriumcom- Prospectingfor tin and tungsten in the Kru•n• hory Mts. since the beginning...drill holes(from 100to 500 m) andmineworkingsof a tin-tungstenmine. Thesedatagive an opportunity to ascertainvertical | | | Journal (article/letter/editorial) | September 1929. while on a rather hurried visit to the tin mines and china clay deposits of Cornwall, England...England, Captain M. T. Taylor of the East Pool Mine near Camborne, gave the writer a specimenthat was very...by Ferguson and Bateman in "Geologic Features of Tin Deposits"l as occurring in Cornish mines, the specimencontains... fluorite, chlorite and cassiterite. East Pool Mine, Camborne, Cornwall, England. Bright dark blue...small crystals, Crystals, yellowish grey, with zinnwaldite and quartz. nega- a The locality of specimens | | | Journal (article/letter/editorial) | Centre for Geoscience GFZ, Telegrafenberg, Potsdam, Germany; thomas@gfz-potsdam.de ARC Centre of Excellence...the highly evolved porphyritic topaz–albite–zinnwaldite microgranite dike at Zinnwald (see Thomas and...Greifenstein granite (both in the Erzgebirge, Germany), or in the Pliocene Eldzhurtinskiy I-type biotite...– Grei fenstein granite, Central Erzgebirge, Germany – re-homogenized at 650 °C and 1 kbar; b – in the...granites such as the porphyritic topaz–albite–zinnwaldite microgranite dikes from Zinnwald, in which the | | | Journal (article/letter/editorial) | little choice in the matter because determining the mine of origin requires an expensive quantitative analysis;...by trace amounts of chromium. The location of the mine has also been named Hiddenite, so crystals of green...green spodumene, as well as emeralds, from this mine are identified as being from Hiddenite. Long after...Kielberg Mountain, Klingenthal, Vogtland, Saxony, Germany. Stephan Wolfsried photo. that make up most...Figure 3. Cassiterite, 5 × 4 × 3 cm, Horni Slavkov mine (Schlaggenwald), Czech Republic. Photo courtesy | | Breiter, Karel, Ďurišová, Jana, Hrstka, Tomáš, Korbelová, Zuzana, Hložková Vaňková, Michaela, Vašinová Galiová, Michaela, Kanický, Viktor, Rambousek, Petr, Knésl, Ilja, Dobeš, Petr, Dosbaba, Marek (2017) Assessment of magmatic vs. metasomatic processes in rare-metal granites: A case study of the Cínovec/Zinnwald Sn–W–Li deposit, Central Europe. Lithos, 292. 198-217 doi:10.1016/j.lithos.2017.08.015 | Journal (article/letter/editorial) | of the Krušné Hory/Erzgebirge (Czech Republic/Germany) formed in the final stage of the magmatic evolution...differentiated zinnwaldite granite above this level. The pronounced differentiation of the zinnwaldite granite...genetic scenario is proposed: The intrusion of the zinnwaldite granite magma reached subvolcanic conditions...the origin of breccia pipes. Subsequently, the zinnwaldite granite magma crystallized IP simultaneously...NU invoked greisenization and created quartz–zinnwaldite veins. Alkalis liberated from feldspars destroyed | | Gourcerol, B., Gloaguen, E., Melleton, J., Tuduri, J., Galiegue, Xavier (2019) Re-assessing the European lithium resource potential – A review of hard-rock resources and metallogeny. Ore Geology Reviews, 109. 494-519 doi:10.1016/j.oregeorev.2019.04.015 | Journal (article/letter/editorial) | data from England, 106 France and, locally, Germany are based on historical (before 1995), non-compliant...1000 ppm) and is mainly illustrated by 122 zinnwaldite and polylithionite occurrences (Tables 1, 2)...to a few 1000 ppm) and is mostly related to zinnwaldite. Examples 126 include Cinovec (Fig. 1C), Podlesi...micas, such as Li-rich muscovite, lepidolite, zinnwaldite, and amblygonite-montebrasite group 174 minerals...average for the Argemela mine, PANNN, 2017) and, except for the Argemela mine, 200 such deposits appear | | | Journal (article/letter/editorial) | Oregon; argyrodite (a silver sulphide germanate), Germany, Bolivia. On the other hand, there are many well...in Colyn region W. of r. Dniepr. ANDREASBERG, Germany, S E Oberharz mountain range, lead-zinc deposit...arsen, hormotone, analcime, desmin. FREIBERG, Saxony, Germany, old famous mineral, classic locality. Native...locality Zinnwald: cassiterite xIs, wolframite, zinnwaldite-iron lithium mica named by Heidinger, 1845. Some...Annaberg, Johanngeorgenstadt, Schneeberg, all in Saxony. Here have been discovered minerals: annabergite | | | Journal (article/letter/editorial) | Research Centre for Geosciences, 14473 Potsdam, Germany; forhj@gfz-potsdam.de Correspondence: breiter@gli...granites in the Erzgebirge/ Krušné Hory area (Germany, Czech Republic), we collected several thousands...metasomatic overprint being crucial in the evolution of tin-bearing granites. From the various classification...Li-enriched biotite in less fractionated granites to zinnwaldite in laterformed, evolved granites forming small...the eastern Erzgebirge (Schellerhau, Sadisdorf, Altenberg, Zinnwald/Cínovec and Krupka). Micas in these | | | Journal (article/letter/editorial) | 20013 pohwatp@si.edu FLUORITE Part 2 Huanggang Mine, Inner Mongolia, China T he first part of this...northern England, particularly from the Rogerley mine, has made these classic specimens available once...localities. The mines of Cornwall have been mined for tin at least since the time of the Roman Empire. Later...copper. Besides providing excellent examples of tin and copper minerals, Cornwall has provided a wealth...made of the complex crystals from the Trevaunce mine, St. Agnes. The crystals on the Smithsonian specimens | | | Journal (article/letter/editorial) | the Variscan Altenberg–Teplice caldera (Krušné hory/Erzgebirge Mts, Czech Republic/Germany): Insights into...the Altenberg–Teplice Caldera (eastern Krušné hory/ Erzebirge, along the Czech Republic/Germany border)...granites (two intrusions of A-type biotite and zinnwaldite granites). The trace-element distribution in...Variscan Altenberg–Teplice Caldera in the Eastern Krušné hory/Erzgebirge area (Czech Republic/ Germany) using...subvolcanic to volcanic crystallization of quartz. The Altenberg–Teplice Caldera is suitable for such study for | | | Journal (article/letter/editorial) | Variscan (Krušné Hory/Erzgebirge, Czech Republic and Germany) plutons cover a wide range of rocks, from large...granite at a depth of 1255 m to 7.5–25 in the zinnwaldite granite at a depth of 40 m. At the scale of individual...fractionation and ore fertilities, as represented by several tin mineralized provinces; (ii) To identify the behavior...important differences between zircons from the zinnwaldite and protolithionite granite facies. Förster (2006)...from A-type granites in the eastern Erzgebirge (Germany) and Jordan. Lamarão et al. (2010) published an | | | Journal (article/letter/editorial) | University of Freiburg, 79104 Freiburg i.Br., Germany PT 1 * corresponding author: tereza.peterkova@geology...represented mainly by the late Carboniferous Altenberg-Teplice rhyolite complex (Fiala, 1960; Štemprok...Preiselberg biotite granite and the Cínovec zinnwaldite albite granite (including the Knöttel stock)...belongs to the highly evolved Cínovec albite-zinnwaldite granite type. The medium-grained granite, sometimes...biotite-quartz pegmatite (photograph from the Barbora mine), (b) dark-grey microquartzite in the K-feldspar | | | Journal (article/letter/editorial) | Seltmann Variscan silicic magmatism and related tin-tungsten mineralization in the Erzgebirge-SlavkovskyÂ...GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany New address: 1 Natural History Museum, Department...mineralization. It is generally accepted that early tin-tungsten oreforming processes are connected with...Niederbobritzsch; Fl, FlaÂje; Tn, Telnice; Ab, Altenberg; Sh, Schellerhau; Sa, Sadisdorf; Cv, CõÂ novec...rhyolites-rhyodacites, granite porphyries from Altenberg and FlaÂjeFrauenstein). Evidence of distinct episodes |
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