 | Markl, G., Marks, M. A. W., Holzapfel, J., Wenzel, T. (2014) Major, minor, and trace element composition of pyromorphite-group minerals as recorder of supergene weathering processes from the Schwarzwald mining district, SW Germany. American Mineralogist, 99 (5) 1133-1146 doi:10.2138/am.2014.4789 | Journal (article/letter/editorial) | | processes from the Schwarzwald mining district, SW Germany Gregor Markl1,*, Michael A.W. Marks1, Johannes...Tübingen, Wilhelmstrasse 56, D-72074 Tübingen, Germany 1 Abstract More than 150 samples of pyromorphite...from the Schwarzwald mining district, southwest Germany, have been analyzed by electron microprobe and...continental mining district, the Schwarzwald (southwest Germany). We use major, minor, and trace element compositions...geological background The Schwarzwald in Southern Germany is a low mountain range about 50 by 100 km large |  | Walter, Benjamin F., Gerdes, Axel, Kleinhanns, Ilka C., Dunkl, István, von Eynatten, Hilmar, Kreissl, Stefan, Markl, Gregor (2018) The connection between hydrothermal fluids, mineralization, tectonics and magmatism in a continental rift setting: Fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany. Geochimica et Cosmochimica Acta, 240. 11-42 doi:10.1016/j.gca.2018.08.012 | Journal (article/letter/editorial) | | U-Pb geochronology from the Rhinegraben in SW Germany Benjamin F. Walter, Axel Gerdes, Ilka C. Kleinhanns...U-Pb geochronology from the Rhinegraben in SW Germany, Geochimica et Cosmochimica Acta (2018), doi: https://doi...U-Pb geochronology from the Rhinegraben in SW Germany. Benjamin F. Walter*1, Axel Gerdes2, Ilka C. Kleinhanns1...Geoscience, Wilhelmstraße 56, 72074 Tübingen, Germany 2 Goethe University Frankfurt, Insitute of Geosciences...Altenhoeferallee 1, D-60438 Frankfurt am Main, Germany 3 University of Göttingen, Geoscience Center, |  | | Journal (article/letter/editorial) | | Bergakademie Freiberg, Brennhausgasse 14, 09599 Freiberg, Germany BENJAMIN F. WALTER AND GREGOR MARKL Institut...Tübingen, Wilhelmstrasse 56, 72074 Tübingen, Germany ABSTRACT Late-stage pseudomorphous and perimorphous...the hydrothermal veins of the Schwarzwald, SW Germany: (1) the primary mineral is dissolved and replaced...Anna bei Fahl mine. (C) Pseudomorphous replacement of baryte by quartz (II). Anna bei Fahl mine. (D)...(44) hydrothermal veins in the Schwarzwald, SW Germany (Fig. 2), we present here a comprehensive study |  | | Journal (article/letter/editorial) | | Brown (1957), they are typically enclosed in chalcedony, which comprises the interior of spherical nodules...denhitic growths that occur between bands of chalcedony, such as those found in Montana “moss” agate...cavity that is partly to completely filled with chalcedony, opal, or quartz and that may exhibit a geometrical...geometrical, star-shaped form. The chalcedony may be banded or it may contain “pseudo-algal” structures that...showing welldeveloped plume and moss structures in chalcedony. Thunder eggs are not uncommon in western North |  | Kolova, E. E., Volkov, A. V., Savva, N. E., Prokof’ev, V. Yu., Sidorov, A. A. (2018) Features of the Ore Forming Process on the Dvoinoye Epithermal Au–Ag Deposit (Western Chukotka) Doklady Earth Sciences, 478 (2) 166-170 doi:10.1134/s1028334x18020149 | Journal (article/letter/editorial) | | gold-bearing veins and veinlets are composed of a quartz–chalcedony aggregate (80–90%), adularia (5–7%), carbonate...deposit is unevenly grained, mostly fine grained to chalcedony with isolated segregations of larger crystals...Tsirka intrusive massif. (England), Amplival (Germany), and Motic (PRC) microscopes, video cameras, and...for the formation of argentiferous sulfosalts and fahl ores. The obtained new thermobaric geochemical data |  | | Journal (article/letter/editorial) | | (collomorphicbanded textures of the vein filling, chalcedonylike quartz, etc.) was not found. Two types of...development of the vein formations of finegrained and chalcedonylike quartz of the collo morphic texture and...association and any magmatic formations developed in this region is still under dis DOKLADY EARTH SCIENCES Vol...100%) Native gold Chalcopyrite Pyrite Pb–Zn sulfides Fahl ore (Ag, wt %) Akantite Ag selenides Geochemical...Russian]. 4. Geological Map of the KolymaOmolon Region, Scale 1 : 500 000 (Magadan, 1998) [in Russian] |  | | Journal (article/letter/editorial) | | concentric, variety of chalcedony (composed of alternating layers of chalcedony having differ ent colors)...moss or plumelike growths. O n y x is a layered chalcedony similar to agate, except that the bands are straight...translucent chalcedony, the color being due to iron impurities; s a r d is a brown chalcedony. C h r y s...s o p r a s e is an apple green variety of chalcedony that is colored by nickel oxide. J a s p e r is...tempera ture of 870°C. At much lower temperatures, chalcedony and agate com monly form by precipitation from |  | Volkov, A. V., Kolova, E. E., Savva, N. E., Sidorov, A. A., Prokof’ev, V. Yu., Ali, A. A. (2016) Formation conditions of high-grade gold–silver ore of epithermal Tikhoe deposit, Russian Northeast. Geology of Ore Deposits, 58 (5) 427-441 doi:10.1134/s107570151605007x | Journal (article/letter/editorial) | | enriched in K-feldspar. Presumably, it was initially chalcedony, because it frequently occurs as spherical aggregates...gradient conditions with deposition of adularia, chalcedony, and cryptocrystalline quartz and dense fine...(f) (e) Q Py Q UtAu Au Au Au Se-Pbz Au Fahl 50 μm 100 μm 150 μm Sf Fig. 5. Major ore minerals...mineralization of the Ivan’inskoe ore cluster (Magadan region'), Rudy Met., 2011, no. 3–4, pp. 54–55. Hedenquist...the hidden Engteri Au– Ag deposit, the Magadan Region, Geol. Ore Deposits, 2010, vol. 52, no. 6, pp. |  | Nikolaeva, L. A., Nekrasova, A. N., Milyaev, S. A., Yablokova, S. V., Gavrilov, A. M. (2013) Geochemistry of native gold from deposits of various types. Geology of Ore Deposits, 55 (3) 176-184 doi:10.1134/s1075701513030045 | Journal (article/letter/editorial) | | Urals; the Caledonides of the Altai–Sayan fold region; the Mesozoides of the SikhoteAlin in Primorye;...Okhotsk Foldbelt (Transbaikalia and Upper Amur region); and the Aldan Shield of the Siberian Plat form...Berezitovy (Upper Amur region), Lebediny (Central Aldan), and Darasun (Transbaikal region) deposits. The lowsulfide...and in the Mesozoides of the Verkhoyansk–Chukotka region. We studied native gold at the Natalka, Dekdekan...district; the Duet deposit in the southern Verkhoyansk region; the Sovetsky, Ayakhta, Korovii Log, and Konduyak |  | | Book | | retain their inner crystalline structure, e.g. chalcedony. All minerals are solid with one exception:...they often become filled with quartz, agate or chalcedony. The largest part of the gases and vapour escapes...Nickel Pyrites, Nickel Glance) Harzgerode, Harz, Germany tin-white to light steel-grey metallic opaque...Mountains, Germany ARSENOPYRITE FeAsS (Arsenical Py- rite, Mispickel) Freiberg, Ore Mountains, Germany tin-white...Steatite) weathering product of serpentine opal, chalcedony, magnesite, chlorite SEPIOLITE Mgu k ((OH)2Si |  | | Report (issue) | | ... ... .. . .. . . .. (5) The Folding of the Region in Late Silurian or Devonian Time ..... , (6) The...which mark. the old level of the flood-plain. The region has been elevated since the establishment of this...BOrne evidence to prove that the uplifting of the region was not effected by one simple movement. for there...the country is not restricted to tbe particular region in question, for there are raised beaches at several...boulders are true glacial erratics, and that the region has been subjected to ice action, yet the topography |  | | Book | | (Pressburg) and the rather peripherally located mining region in the Western Carpathians, about 200 km east of...During the visit of the Lower Hungarian mining region the whole entourage was dressed in miner’s habit...and the balancing of power relations within each region in order to stabilize the entire territory. The...from other parts of the monarchy and Southern Germany was encouraged and the expertise and technologies...copper, and iron ore were exploited in the Banat region, and silver and salt in Transylvania (Slotta et | | | Book | | retain their inner crystalline structure, e.g. chalcedony. All minerals are solid with one exception: mercury...they often become filled with quartz, agate or chalcedony. The largest part of the gases and vapour escapes...Nickel Pyrites, Nickel Glance) I Lu erode, Harz, Germany tin-white to light steel-grey greyish black metallic...Py rite, Mispickel; Freiberg, Ore Mountains, Germany tin-white to grey greyishblack metallic opaque...NiAs, (White Nickel) Schneeberg, Orc Mountains, Germany Table 2 9 10 11 12 13 14 15 16 & ?-T |  | | Book | | 160 - 161 to 163 - 169 to 171 169 170 170 Chalcedony ~ 161 _J\.gate, &c. ... 162 <)nyx, Jasper, &c...crystalline. Isle of Man. 56. GALENA, associated Chalcedony, in Limestone. 60. GALEN.A, Cl''j~stallized...MAL.AOHITE, Siberia. ceous matter. Ha·rtz; Germany. i : . Nos. 102 to 104 presented by G. B. schistose...to be added.) 152. ANTDIONIAI~ GREY COPPER ORE (Fahl-ore, or T etrahedrite ), containing 163 ozs. of...Globular CLAY IRON ORE (Bol1nerz ). K andern, .Baden. 315. Red-stained ARGILLACEOUS IRON ORE. ORE. |  | | Book | | quartz, 240 ; ; ; 229 beryl, ; chryso- chalcedony, ........ 240 INDEX ; felspar, 241 242 ...following terms be described in the may : Even: chalcedony. Uneven : tourmaline. Conchoidal: calcite...Quartz dioxide of silicon, SiO 2 (hexagonal). Chalcedony dioxide of silicon, SiO 2 Opal hydrated dioxide...crystallized, when crypto-crystalline, as chalcedony. The chief rocks in quartz-porphyry, which...sulpharsenite of in copper, silver, iron, and zinc (e.g., fahl-ore and ten- nantite). 9 DESCRIPTIVE MINERALOGY |  | | Book (edition) | | fewer little in which there appears blue, fahl ore, and has a metallic and native platina. ...pyramid is either single or dou- have examples in fahl ore, spi- OF MINERALS. 39 copper pyrites, and...shape. in We as to have an example of it chalcedony. 2. Granulated. rous small When the surface...lustre, Examples, lead glance, lydian stone, chalcedony and crysoprase. e. Conchoidal, is composed...duplicating property, this When . 75 a Examples, chalcedony, cloud. precious opal, and carnelian. When |  | | Book (edition) | | Auhhorn. See Opal, Auina. See Hauyuite. Auralite. See Fahl unite. AJJ'RlCliLA.-LClTE.BoUger. 2(ZnCu)C03 3(ZnCu)(OH)2...Monoclinic. Bryoide. See Pyromorphite. Bubble chalcedony. See Quartz. Bucaramanga resin. See Bucaramang-...Quartz. See Quartz. See Ampbibole (Jade) and Chalcedony. Chalchihuitl. Turquois. Chalchite. Chalcites...Clintonite. See Seybertite. See Smaltite. Cloudy chalcedony. See Quartz. Cloustonite, Heddle. Bituminous...Miargyrite, Fahlite. See Tetrahedrite. Fahl kupfererz. See Tetrahedrite. Fahl orce See Tetrahedrite. 121 Fahlun |  | | Book | | of the Deutsches Bergbau-Museum in Bochum, West Germany, Professor J. C. Becker of the University of Copenhagen...USA, Fig. 93; German Mining Museum, Bochum, West Germany, Figs 19, 20, 42, 46, 52, 55, 56, 57, 81; Institute...USA Fig. 64; Museum of History, Cologne, West Germany, Fig. 69; Museo de Prehistoria, de la Excma, Valencia...Romisch-Germanisches Commission, Frankfurt, West Germany, (Germania), Figs 68, 98; Society of Antiquaries...Tundra in NW. Europe Forest pine in S. France and Germany Return to colder conditions Mesolithic — Holocene |  | | Book | | 153 Archaic copper tools from the Lake Superior region, USA . . . . . . . . . . . . 155 Copper deposits...earths (Sects. 48–69) found in the Mediterranean region and the Near East. His interest is focused on the...1999:39–40). Agricola decided that the black rock of his region was the same as Pliny’s basalt, so he introduced...spectrum that humans can sense is the infrared, the region of heat radiation. We feel the warmth of infrared...absorb electromagnetic energy in the visible light region, one must understand the electronic structure of |  | | Report (issue) | | mbH in Frankfurt am Main, Federal Republic of Germany, and his colleagues who assisted, deserve special...the Southern Black Forest, Federal Republic of Germany ............................... H.W. 247 Bültemann...western edge of the Bohemian Massif (NE Bavaria, FR Germany) ................................................Urangesellschaft mbH Frankfurt am Main Federal Republic of Germany About 15 years ago, in the light of an assumed...fl generalized geological map of the Singhbl urn region. the Singhbhum Granite - is a lensoid mass composed |  | | Book (volume) | | known in every civilized country of Europe. In Germany it has been publifhed by Widenman, Emmerling, Karften...Kupferkies. 1460 pyrites White copper ore. 147. Fahl ore. Weifs kupfererz. Fahlerz. 148. Copper black...a palfes into jafper. fometimes borders on chalcedony and * Mineralogy of the Scottifh Z Y ifles... TWENTY-FIFTH SPECIES. Chalcedony. Calezdon Werner i. divides Chalcedony, and Werner . this fpecies...FLINT GENUS. *74 FIRST SUBSPECIES. Common Chalcedony. Werner Gemeiner Calzedon. 298. — Wid. chalzedon |  | | Book (edition) | | America's Mountain: Pikes Peak and the Pikes Peak Region Seven Keys to the Rocky Mountains Historical Atlas...Country Gateway Black-Agate Localities San Juan Region Sunnyside Mill Segment C - Durango to Del Norte...of considering the geology and topography of the region in which he is working. Thus, he would expect to...deposits throughout central Colorado. The famous gem region around Mount Antero, in the Sawatch Range, must...Albert B. Whitmore, who came to the Pikes Peak region in 1874 and mined at Cripple Creek, where he also |  | | Book (edition) | | America’s Mountain: Pikes Peak and the Pikes Peak Region American Gem Trails Gems, Minerals, Crystals, and...Country Gateway Black-Agate Localities San Juan Region Sunnyside Mill Segment C — Durango to Del Norte...of considering the geology and topography of the region in which he is working. Thus, he would expect to...num ber of immediate neighbors. The Four Comers region in south west Colorado is the only place in the...deposits throughout central Colorado. The famous gem region around Mount Antero, in the Sawatch Range, must |  | | Book | | founding members of IMA. Hugo Strunz Unterw6ssen, Germany Foreword v ..: r m a n y YL'a rs of collcc1ing...b) mixture of Variscite or Wardite and Quartz [Chalcedony] Ablygonite = a) Amblygonite, b) Montebrasite...= Albite [Plogioclose] Abakusz-Ko = Quartz (Chalcedony] Absite = thorian Brannerite Absah-Gel = Montmorillonite...Quartz [Agate] Achat Vix Pellucida = Quartz [Chalcedony] Achates = Quartz [Agate] Achates Unguium Colore...[Ch rysoprose) Achates Chalcedonius = Quartz [Chalcedony] Achatjaspis = Quartz [Agate] Achatturkiz = |  | | Book (edition) | | Asbestos, Quebec Spessanine garnet, rough and cut Chalcedony replacements of coral, Florida Rough and cut...Phoenix. 11 . Specimens of chalcedony replacing coral from Florida. Some chalcedony linings are coated with...intrigue exploration geologists who work in that region. Among recent explorations is that of D. D. Brown...common origin and indicate that a good prospecting region lies between Jasay-El Topo to the south, and north...collectors, common opal, jasper, -agate, and other chalcedony gemstones are found widely scattered throughout |
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Fahl, Todtnau, Lörrach, Freiburg Region, Baden-Württemberg, Germany