 | | Report (issue) | | Wolfsgrün pegmatite from the Eibenstock granite, W-Erzgebirge, Germany; in smoky quartz from the Malkhan pegmatite...Type Material: Museum, Mining Academy Freiberg, Germany (81615). References: (1) Thomas, R., P. Davidson |  | | Journal (article/letter/editorial) | | two generations of smoky quartz, one crystallized above the b–a-transition of quartz (&573°C), and one...GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany e-mail: thomas@gfz-potsdam.de P. Davidson ARC Centre...Wissenschaften e.V, Neuer Weg 6, Neschwitz/Bautzen, Germany miarolitic cavity, contradicting the view that...miarolitic pegmatites from the Königshain granite, E Germany (miarolitic class, Černý and Ercit 2005), with...found in graphic quartz at the beginning of the pegmatite stage and in early smoky quartz, providing constraints |  | | Journal (issue) | | Schneeberg Mining District, Western Erzgebirge, Saxony, Germany ....................................... 620...737 ►• - COVER: Erythrite spray, 4.4 cm, in a quartz-lined pocket, from Schneeberg. Gail and Jim Spann...Schneeberg District in the famous Saxon Erzgebirge of Germany has been a source of mineral specimens and mineral...Sammlungen, Brennhausgasse 14, D-09599 Freiberg, Germany. Email: Andreas .Massanek@geosamm.tu-freiberg.de...de 2 Naunhoferstrasse 49, D-04299 Leipzig, Germany. Email: info@sm -mineral.de 3 Senckenberg Naturhistorische |  | | Journal (article/letter/editorial) | | Potsdam, Telegrafenberg B 120, D-14473 Potsdam, Germany ABSTRACT A method of determining the boric acid...Ehrenfriedersdorf complex (Central Erzgebirge, Germany). In this pegmatite system, boron in combination... were reported to occur in fluid inclusions in quartz hosts from tin-tungsten greisens and veins (Thomas...time as a daughter mineral in fluid inclusions in quartz, green tourmaline, and adularia of gembearing pegmatites...cell experiments and natural fluid inclusions in quartz from Elba (see Table 5). Closed circles = HDAC |  | | Journal (article/letter/editorial) | | Potsdam, Telegrafenberg B120, D-14473 Potsdam, Germany ARC Centre of Excellence in Ore Deposits, University...melt and fluid inclusions in graphic pegmatite quartz from the Island of Elba, Italy has identified silicate...in the Museum of the Mining Academy Freiberg (Germany), catalog no. 81615 [ramanite-(Cs)] and 81616 [ramanite-(Rb)]...M Figure 1. Type-B melt inclusions in graphic quartz from the Elba pegmatite, a and b are unheated,...of an unheated type-B melt inclusion in graphic quartz (similar to a and b), showing both new PBT minerals |  | | Journal (issue) | | SPRING 2022 PAGES 1–136 Yellow Topaz from Saxony, Germany History of Emerald Mining at Habachtal, Part...VOLUME 58, No. 1 EDITORIAL 1 Yellow Topaz from Germany, Emerald Mining in Austria’s Habachtal Region,...2 Gem Topaz from the Schneckenstein Crag, Saxony, Germany: Mineralogical Characterization and Luminescence...Challenge 62 G&G Micro-World Blue apatite in smoky quartz • Oiled apatite • Acicular troughs associated...California Canberra, Australia Petershausen, Germany Edward W. Boehm A.J.A. (Bram) Janse Andy Shen |  | | 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 . . . . . . |  | | Book | | Natural, Cultured and Imitation Alexander E. Fam Quartz Michael O'Donoghue Also availablefrom Butterworth-Heinemann...Czechoslovakia 173 East Africa 174 Federal Republic of Germany (including the former German Democratic Republic)...Ouro Preto, Kamenka river, Schneckenstein, Saxony, Germany. xiv Profile Colourless/blue - Minas Gerais...copper alloy containing about 20% tin. Topaz and quartz are common associates of tin ore, so that early...Brazil. It also occurs at Schneckenstein, Germany (Saxony) and neighbouring areas, the Sanarka river |  | | Journal (article/letter/editorial) | | hübnerite, chalcopyrite, carpholite, cassiterite, quartz, molybdenite, rhodochrosite, sphalerite, topaz...tin, especially in Germany, as testified that major tin traders from southern Germany used to pay supplies...mines, and imports (or smuggling) of cheap tin from Saxony competed for the limited market. During the 19th...extraction to Great Britain and later to Freiberg in Germany. The mining in the Krásno ore district terminated...biotite granite, minor masses of gabbrodiorite and quartz diorite, b) transitional group of twomica granite |  | | Book | | Several specimens of a particular mineral, e.g. quartz, may vary not only in colour (see plates) but also...graphite. The basic element of the commonest mineral — quartz — is silica (SiO,), a compound of silicon and oxygen...— some 40-50 — are generally rock-forming, e.g. quartz, felspar, mica, pyroxene, amphibole and olivine...At a later stage they often become filled with quartz, agate or chalcedony. The largest part of the gases...walls of the fissures. Well known minerals, such as quartz and calcite, originate at this stage and are known | | | Book | | Several specimens of a particular mineral, e.g. quartz, may vary not only in colour (see plates) but also...graphite. The basic element of the commonest mineral quartz — is silica (SiO2), a compound of silicon and oxygen...— some 40-50 — are generally rock-forming, e.g. quartz, felspar, mica, pyroxene, amphi bole and olivine...At a later stage they often become filled with quartz, agate or chalcedony. The largest part of the gases...walls of the fissures. Well known minerals, such as quartz and calcite, originate at this stage and arc known |  | | Journal (article/letter/editorial) | | Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany THOMAS PETTKE,* Isotope Geochemistry and Mineral...States), and another Sn deposit (Ehrenfriedersdorf, Germany) to demonstrate that the mineralization potential...entire melt inclusions were drilled out of the host quartz without prior homogenization, and original melt...millimeters to several meters, are crystal lined (quartz, orthoclase ± other minerals), and commonly are...is possible that fluid inclusions in miarolitic quartz may be different from the average fluid exsolved |  | | Journal (article/letter/editorial) | | Centre for Geosciences, Potsdam, Brandenburg, Germany e-mail: RainerThomas@T-Online.de P. Davidson ARC...rich pegmatites, simple pegmatites containing only quartz, feldspar, and possibly muscovite are both numerically...Sadisdorf and similar tin deposits in the Erzgebirge, Germany (see Oelsner 1952) can serve as examples. We suggest... 2004). A careful study of fluid inclusions in quartz in a large number of pegmatites (above mentioned)...measurements on two-phase fluid inclusions in pegmatite quartz (72 samples from 39 pegmatites world-wide) using |  | | Book (volume) | | reserved. H., Hofbuchdruckerei, Cothen-Anhalt (Germany). PRECIOUS The Precious Stones. Precious others...which since both of beryl (including emerald) quartz, next of time same graphite, beryllium. ...semi-precious the and those purpose. minerals other quartz display 1896), translated into a mineralogist...regarded are drawn between special valued as quartz good minerals, more and in be properties...will the is light quartz from the lower jour setting, a are at on quartz all much less as |  | | Report (issue) | | CT Concept & Design Maximilian Glas, Stamberg, Germany English Edition © 2002 by Lapis International,...www.lapisint.com ISBN 0-971 5371-2-7 Printed in Germany Above: Schor! and microcline from Pakistan's world...Weise Verlag, Munich, Germany German Edition © Christian Weise Verlag, Munich, Germany ISBN 3- 921656- 31...COLLABORATION WITH LAPIS MAGAZINE, CHRISTIAN WEISE VERLAG, GERMANY AND LAPIS INTERNATIONAL, USA Tourmaline ♦ History... Simmons • From Paris in America to Amerika in Saxony A Survey of the World's Tourmaline Deposits Africa |  | | Book | | - - - Dolomite, CaTbonate of Magnesia, &c. QUARTZ • - - - - .. -, QuABTZ, co.n tinued ,...They are commonly as.s o'!iated with iron pyrites, quartz, fluor-spa1', and cl1lorite ; more ra1·ely with... B. Greenough, inte1~- CoPrER, mingled with quartz. 28. 13. NATIVE COPPER, n1assive, incrusted with...crys- , tallized, reticulated, and associated with quartz. Lanescot Mines ( Fowey Consols ). Presented by...arseniate), crystallized. Disseminated through a Quartz· 106 & 107. COPPER MICA . Brecci'a, at Rattlinghope |  | | Book | | 120) Page 6: Mimetite (see page 139) Page 248: Quartz (amethyst variety), Erongo Mountains, Namibia *...Earth’s crust are composed ofjust a few minerals; quartz and the feldspar group are the most abundant processes...growth, as exemplified by tourmaline in schist, quartz or phlogopite. Space for Growth Cavities in rocks...about the same time, as happens with pyrite and quartz, or they may have grown one after the other, as...protect and preserve them. Rutile inclusions in quartz are a good example. Growth in Veins Veins are |  | | 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 | | 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 (edition) | | SILICA III. l. AND SILICATES. SILICA. 253 Quartz Opal 259 2. SILICATES. General Remarks.- 262...sometimes called a quartzoid, because it occurs in quartz. (3) Twelve-sided double pyramids. Two planes of...rhombohedrons. They are combined in Figs. 20, 21, forms of quartz. Ehombohedrons vary greatly in the length of the...hemihedrism and common in crystals of tetarto- quartz, and when existing, the crystals are said to... CRYSTALLOGRAPHY. 56 Some examples are given under quartz. Some systems. rhombohedral species, as dolomite |  | | 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 (edition) | | pure ore. Ore, 202. ; Oxyd, 73. XI Containing quartz aa Quartzose. a principal ingredient. Radiated...Consisting Siliceous. of, or con- taining silex, or quartz. Silky, 56. A Silurian. term applied to the...(feldspar) will be easily distinguished from others (quartz) that have a glassy appearance. It is a popular...of these gems of nature's workmanship. mineral quartz sometimes occurs in crystals consisting of two...but opaque crystals occur a foot or more long. Quartz crystals attain at times extraordinary dimensions |  | | Book (edition) | | pure ore. Ore, 202. ; Oxyd, 73. XI Containing quartz Quartzose. a principal ingredient. Radiated, 53...Silicate, 74. Consisting of, taining silex, or quartz. Silky, 56. Siliceous. A Silurian. fossiliferous...(feldspar) will be easily distinguished from others (quartz) that have a glassy appearance. It is a popular...these gems of nature's workmanship. The mineral quartz sometimes occurs in crystals consisting of two...but opaque crystals occur a foot or more long. Quartz crystals attain at times extraordinary dimensions |  | | Book (edition) | | Oxydating flame, 68. XI Quartzose. Containing quartz as a principal ingredient. Radiated, 53. Rake-vein...Siliceous. Consisting of, or con- taining silex, or quartz. Silky, 56. A term applied to the fossiliferous...(feldspar) will be easily distinguished from others (quartz) that have a glassy appearance. It is a popular...these gems of nature's workmanship. The mineral quartz sometimes occurs in crystals consisting of two...but opaque crystals occur a foot or more long. Quartz crystals attain at times extraordinary dimensions |  | | Book (edition) | | 55. To gradually pass Quartzose. Containing quartz as a principal ingredient. Radiated, 53. Rake-vein...Siliceous. Consisting of, or con- taining silex, or quartz. Silky, 56. A Silurian. term applied fossiliferous...distinguished from others ticles {feldspar) (quartz) that have a glassy appearance. It is a popular...these gems of nature's workmanship. The mineral quartz sometimes occurs in crystals consisting of two...but opaque crystals occur a foot or more long. Quartz crystals attain at times extraordinary dimensions |
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Fahsel quarry, Blauenthal, Eibenstock, Erzgebirgskreis, Saxony, Germany