 | Keim, Maximilian F., Staude, Sebastian, Marquardt, Katharina, Bachmann, Kai, Opitz, Joachim, Markl, Gregor (2018) Weathering of Bi-bearing tennantite. Chemical Geology, 499. 1-25 doi:10.1016/j.chemgeo.2018.07.032 | Journal (article/letter/editorial) | | Tübingen, Germany 2 Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany Helmholtz-Institut...Stuttgart, Azenbergstraße 18, 70174 Stuttgart, Germany *corresponding author: Sebastian Staude MA mail:...E D phone: +49 (0)7071-29-73080 AC 4 SC Germany 1 ACCEPTED MANUSCRIPT Abstract The tennantite-tetrahedrite...Wittichen area in the RI Schwarzwald ore district, Germany (Staude et al., 2010; George et al., 2017). Fahlore...shale and orogenic gold deposits, as well as in porphyry, epithermal and active black smoker systems (e |  | | Book (edition) | | Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Earth Science Department / College of Science,...Feld 236, D-69120 Heidelberg, Germany Sodenstr. 19, D-12309 Berlin, Germany Graslitzer Str. 5, D-63791 Karlstein...Karlstein am Main, Germany Ludwig-Maximilians Universität, Department für Geo- und Umweltwissenschaften...Ressourcengeologie, Luisenstr. 37, D80333 München, Germany Bundesanstalt für Geowissenschaften und Rohstoffe...Rohstoffe (BGR), Stilleweg 2, D-30655 Hannover, Germany Dr. Salah Al-Khirbash Prof. Dr. Rainer Altherr & |  | | Journal (issue) | | tourmaline and purple apatite, the Consolidated Mining quarry in Georgetown for gem spodumene and tourmaline...May–June, 2023 Perhamite, 2.5 cm, from the Emmons quarry, Uncle Tom Mountain, Greenwood, Oxford County,...least 2008. But the mining culture in this remote region of China was sometimes a little slow to recognize...systematic regional grid geochemical surveys in the region in the 1990s. They focused on the Bairendaba and...regional market city in the Inner Mongolia Autonomous Region, when reselling Bairendaba specimens (Ottens, 2021) |  | Keim, Maximilian F., Walter, Benjamin F., Neumann, Udo, Kreissl, Stefan, Bayerl, Richard, Markl, Gregor (2019) Polyphase enrichment and redistribution processes in silver-rich mineral associations of the hydrothermal fluorite-barite-(Ag-Cu) Clara deposit, SW Germany. Mineralium Deposita, 54 (2) 155-174 doi:10.1007/s00126-018-0799-z | Journal (article/letter/editorial) | | hydrothermal fluorite-barite-(Ag-Cu) Clara deposit, SW Germany Maximilian F. Keim 1 & Benjamin F. Walter 1 & Udo...Accepted: 8 March 2018 # Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract The silver-copper...fluorite-barite vein system at the Clara deposit in SW Germany shows large scale vertical zoning. Low to moderate...silver-bearing phases and the precipitation of acanthite and native silver. The study illustrates, how...D-72074 Tübingen, Germany 2 Stuttgart, Germany The Schwarzwald ore district in SW Germany hosts numerous |  | | Journal (issue) | | cm wide, from the Tsumeb mine, Tsumeb, Otjikoto Region, Namibia. Unique Minerals specimen; Jeff Scovil...Berezovsk district). Figure 26. The gold mining region around Berezovsk, including the names of all of...Sanarka region, drawn in 1857. Figure 34. Overview of gold occurrences in the Kac=kar region, southern...Quaternary volcanic rocks and is cut by andesite porphyry dikes. Later basalt dikes cut both the limestone...2012) are newly described minerals from Japan and Germany, respectively, that had previously been known as |  | Cioacă, Mihaela-Elena, Munteanu, Marian, Lynch, Edward P., Arvanitidis, Nikolaos, Bergqvist, Mikael, Costin, Gelu, Ivanov, Desislav, Milu, Viorica, Arvidsson, Ronald, Iorga-Pavel, Adina, Högdahl, Karin, Stoilov, Ventsislav (2020) Mineralogical Setting of Precious Metals at the Assarel Porphyry Copper-Gold Deposit, Bulgaria, as Supporting Information for the Development of New Drill Core 3D XCT-XRF Scanning Technology. Minerals, 10 (11) 946 doi:10.3390/min10110946 | Journal (article/letter/editorial) | | Mineralogical Setting of Precious Metals at the Assarel Porphyry Copper-Gold Deposit, Bulgaria, as Supporting Information...investigation of ore samples from the Assarel porphyry copper deposit in the Srednogorie metallogenic...events. Several rare minerals (e.g., merenskyite, acanthite, sorosite, tetra-auricupride, auricupride, greenokite...metallogeny; Assarel; X-MINE 1. Introduction Porphyry-type deposits are the main source for global Cu...23 and be extracted as co-products. Also, many porphyry copper deposits contain economic grades and volumes |  | | Journal (article/letter/editorial) | | barian celestite) instead of galena. Selenian acanthite, cadmian freibergite, and argentian goldfieldite...considered to reflect overprinting relationships in a porphyry-epithermal environment (Voudouris 2006). Precious...geological map of the western Thrace region in Greece showing porphyry Cu-(±Mo) and epithermal Au-(±Ag) deposits...Plotinskaya et al. 2005). Goldfieldite in two other porphyry-epithermal prospects in northeastern Greece (St...southward migration of magmatic activity in the Aegean region from the Oligocene in northeastern Greece to the |  | Berkh, Khulan, Majzlan, Juraj, Chovan, Martin, Kozák, Jaroslav, Bakos, František (2014) Mineralogy of the Medieval Ag-Au occurrences Banská Belá, Treiboltz, Rabenstein, and Kopanice in the Banská Štiavnica ore district (Slovakia) Neues Jahrbuch für Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry, 191 (3) 237-256 doi:10.1127/0077-7757/2014/0259 | Journal (article/letter/editorial) | | data. In Banská Belá, the Ag minerals include acanthite, polybasite-pearceite, pyrargyrite, stephanite...in pyrite. In Kopanice, the main Ag mineral is acanthite and the only base-metal sulfide is pyrite. Both...Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, Germany DOI: 10.1127/0077-7757/2014/0259 www.schweizerbart...andesite porphyry; (2) pre-volcanic basement; (3) sills and dikes of quartz diorite porphyry; (4) granodiorite...granodiorite porphyry; (5) rhyolite; (6) diorite; (7) granodiorite; (8) boundary of mineral zoning; (9) |  | Majzlan, Juraj, Berkh, Khulan, Kiefer, Stefan, Koděra, Peter, Fallick, Anthony E., Chovan, Martin, Bakos, František, Biroň, Adrián, Ferenc, Štefan, Lexa, Jaroslav (2018) Mineralogy, alteration patterns, geochemistry, and fluid properties of the Ag-Au epithermal deposit Nová Baňa, Slovakia. Mineralogy and Petrology, 112 (1) 1-23 doi:10.1007/s00710-017-0516-0 | Journal (article/letter/editorial) | | precious metals are electrum, Ag-tetrahedrite, acanthite, members of the polybasite-pearceite and pyrargyrite-proustite...some stibnite. In the SE part of the deposit, acanthite, uytenbogaardtite, and petrovskaite occur and...Friedrich-Schiller University, Burgweg 11, D-07749 Jena, Germany Department of Geology of Mineral Deposits, Faculty...small porphyry-skarn type mineralization bodies associated with emplacement of granodiorite porphyry stocks...2010). Subsequent emplacement of quartz-diorite porphyry sills and dykes and gravitational collapse of |  | | Book (edition) | | Rickardite II/B.04-20 Argentite II/B.05-02 II/B.05-10 Acanthite Naumannite II/B.05-30 Hessite II/B.05-40 Jalpaite...Affiliation/Address Luzerner Str. 10-12, D-12205 Berlin, Germany – Freie Universität Berlin, FB Geowissenschaften...Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Bundesanstalt für Geowissenschaften und Dr. Frank...Stilleweg 2, D-30655 HanDr. Thomas Oberthür nover, Germany Dr. Thomas Kenkmann Museum für Naturkunde der ... zu Berlin, Invalidenstr. 43, D-10115 Berlin, Germany Prof. Dr. Robert Marschik & Ludwig-Maximilians |  | | Report (issue) | | crystal 2.2 cm, from the Merelani mines, Arusha Region, Tanzania. Marin Minerals specimens and photo....crystals from the tanzanite mines at Merelani, Arusha Region, Tanzania. From these mines, we are by now accustomed...open-pit mine, opened in 2000, exploits a copper porphyry body with a high gold content, and no mineral...Clintonite in calcite, 5 cm, from the Crestmore quarry, Riverside, California. C & C Forrester specimen...========================================== Acanthite on quartz, 2.7 cm, from Guanajuato, Mexico. Mineral |  | | Journal (article/letter/editorial) | | processes caused by Mesozoic igneous activity of the region. The formation of tellurides occurred at the very...by large-scale Mesozoic igneous activity of the region, involving the intrusion of massifs of subalkaline...scattered information on Te mineralization of the region, to clarify their typomorphic properties and conditions...conditions of on Te mineralization of the region, to clarify their typomorphic properties and conditions...(HgS), stibnite (Sb2 S3 ), orpiment (As2 S3 ), acanthite (Ag2 S), uytenbogaardtite (Ag3 AuS2 )); Ag chlorides |  | Arfè, Giuseppe, Boni, Maria, Mondillo, Nicola, Aiello, Roberto, Balassone, Giuseppina, Arseneau, Vernon, Soyk, Dominik (2016) Supergene Alteration In the Capricornio AU-AG Epithermal Vein System, Antofagasta Region, Chile. The Canadian Mineralogist, 54 (3) 681-706 doi:10.3749/canmin.1600012 | Journal (article/letter/editorial) | | CAPRICORNIO Au-Ag EPITHERMAL VEIN SYSTEM, ANTOFAGASTA REGION, CHILE GIUSEPPE ARFȧ AND MARIA BONI* Dipartimento...für Geowissenschaften, Universität Heidelberg, Germany ABSTRACT The Capricornio epithermal Au-Ag vein...Ag-sulfoselenides, Ag-sulfoantimonides, Ag-sulfosalts, and acanthite, as well as by base metal sulfide minerals including...supergene weathering zones of porphyry Cu deposits in the Atacama region. Keywords: Capricornio, epithermal...Au-Ag, supergene Au-Ag, aridity, gold, Antofagasta Region, Central Depression. § Corresponding author: |  | Cacho, Andreu, Melgarejo, Joan-Carles, Camprubí, Antoni, Torró, Lisard, Castillo-Oliver, Montgarri, Torres, Belén, Artiaga, David, Tauler, Esperança, Martínez, Álvaro, Campeny, Marc, Alfonso, Pura, Arce-Burgoa, Osvaldo R. (2019) Mineralogy and Distribution of Critical Elements in the Sn–W–Pb–Ag–Zn Huanuni Deposit, Bolivia. Minerals, 9 (12) 753 doi:10.3390/min9120753 | Journal (article/letter/editorial) | | deposit between epithermal and porphyry Sn types (or shallow porphyry Sn), it represents a case that...metallogenic belts from west to east, these are the Fe, porphyry Cu–Mo(–Au), Cu–Pb–Zn–Ag, and Sn–(W–Ag–Sb–Bi) belts...it sits on western Bolivia (Figure 1). The Oruro region in southwest Bolivia is located on the central...belt and the southerly N–S part (Figure 1). This region contains some of the most outstanding tin deposits...sulphosalts, oxides, phosphates, and Sulphides are acanthite [Ag S], arsenopyrite [FeAsS], bismuthinite [Bi |  | Prokofiev, V. Yu., Kiseleva, G. D., Dolomanova-Topol, A. A., Kryazhev, S. G., Zorina, L. D., Krasnov, A. N., Borisovsky, S. E., Trubkin, N. V., Magazina, L. V. (2017) Mineralogy and Formation Conditions of Novoshirokinsky Base Metal–Gold Deposit, Eastern Transbaikal Region, Russia. Geology of Ore Deposits, 59 (6) 521-550 doi:10.1134/s1075701517060046 | Journal (article/letter/editorial) | | Novoshirokinsky Base Metal–Gold Deposit, Eastern Transbaikal Region, Russia V. Yu. Prokofieva, *, G. D. Kiselevaa,...and is spatially related to the Late Jurassic porphyry system. Evidence is provided on carbonate rocks...were concerned with metallogenic zoning of the region. Thomson (1964), Fogelman (1965), and Seminsky...Ivanova, 1968). The large Shakhtama molybdenum porphyry (Berzina et al., 2013) from which lead and zinc...Bystrinsky skarn–porphyry Cu– Au–Fe deposit (Kovalenker et al., 2016), and the porphyry Cu–Mo Au-bearing |  | | Book (volume) | | 75 Arkadii A. Kalinin and Nikolay M. Kudryashov Porphyry-Related Metamorphosed Au-Ag and Cu-Mo Deposits...the late crystallization of the quartz diorite porphyry, whereas type 2 tourmaline coexists with Au-bearing...deposits as two parts of an Archean (2.83– 2.82 Ga) porphyry-epithermal system, probably the oldest such deposit...genetic relationships with the sills of granite porphyry. The geological and structural characteristics...epithermal deposits. It can be speculated that Au–Cu–porphyry mineralization may be found at deeper horizons |  | | Journal (article/letter/editorial) | | superb example of the mineral. It was from Saxony, Germany, and was to me at that time a thing of beauty and...others, chalcopyrite, galena, sphalerite, pyrite, acanthite, bornite, calcite, dolomite, siderite, barite...Kampf, pers. comm., 2010). The Bingham Canyon porphyry copper deposit in Salt Lake County has provided...mines, Guanajuato, state of Guanajuato, with acanthite and polybasite. Canadian localities include the...Department. In Chile tetrahedrite occurs at the porphyry copper-gold deposits of the San Antonio district |  | | Report (issue) | | F~GURE 1. Drawing and X-ray micrographs of acanthite and copper sulfides on galena. Drawing and X-ray...chalcopyrite, 'Sphalerite, ,galena, d~genite, and acanthite are the principal sulfides. Elemental g~ld is...native silver, electrum, argentopyrite ( ?) , acanthite, argentian tetrahedrite, silver sulfosalts, hessite...disseminated metals in bodies reminiscent of the porphyry copper deposits of the Western States. This report...native silver, electrum, argentopyrite ( ?) , acanthite, argentian tetrahedrite, argentian digentite, |  | | Journal (issue) | | within a few kilometers of large copper-molybdenum porphyry bodies in Arizona. The implication is that molybdenum...groundwater and surface water by the weathering of the porphyry can travel many kilometers underground until being...solution than molybdenum. If a copper-molybdenum porphyry body exists within 20 or 30 km of Los Lamentos...to reveal the presence of any coppermolybdenum porphyry bodies, and the distance which such metals can...of fabulously rich veins of solid pyrargyrite, acanthite, stephanite and polybasite. During the last decade |  | | Report (issue) | | LaPointe, Liang-Chi Hsu, and John H. Schilling Porphyry and Contact Metasomatic Deposits 60 Stephen... Round Mountain Mine Quartz, Lovelock area Acanthite Grossular, Nightingale district Quartz epimorph...Descloizite Cuprite on Copper Nevadaite, Gold Quarry Mine Vanadinite, Ruth Mine Epidote Opal after...brought civilization and prosperity to an empty region in the case of Nevada. Initially unorganized and...of mountains might come together, and this great region be obliterated from the surface of the earth.” |  | | Journal (article/letter/editorial) | | volumetric, nonlinear type, unconventional for the region; it is related to elements of fold structures and...been identified. The largest placer deposit of the region is the placer of the Bol. Tyrkanda River, with...Archean, which is exposed throughout the area of the region. The basement rocks are migmatized and contain...hessite, cervelleite, polybasite, native silver, acanthite, and uytenbogaardtite The polysulfide mineral...cervelleite (Ag4 TeS), polybasite, native silver, acanthite (Ag2 S), and uytenbogaardtite (Figure 4, Table |  | Volkov, A. V., Savva, N. E., Sidorov, A. A., Kolova, E. E., Chizhova, I. A., Alekseev, V. Yu. (2015) The Agan epithermal gold-silver deposit and prospects for the discovery of high-sulfidation mineralization in northeast Russia. Geology of Ore Deposits, 57 (1) 21-41 doi:10.1134/s1075701515010067 | Journal (article/letter/editorial) | | represent cooling acid fluids that form Cu ± Mo ± Au porphyry deposits at the subsur face level. In contrast...(Cu–Pb–Zn–Au–Ag–Cd–In) deposits, as well as deposits of Sn–Ag porphyry, Cu–Mo–Au–Ag por phyry, and Au–As–Sb–Ag disseminated...main metallogenic feature of the Central– Okhotsk region is the wide development of the cas siterite–sulfide...granitoidrelated Sn– Au–Ag–Te–Bi (Ugryumoe and others), Sn porphyry, and Au–Te–Bi (Zhivopisnyi, Valun, and others)...pyrargyrite, acanthite, fine mineral inter growths (gold amalgam + jarosite + sternbergite + acanthite + hematite); |  | | Journal (issue) | | Zodac, jade expert Louis Zara, Doris Biggs, Francon quarry specialist Don Doell, mineral dealer Hugh Ford...skeletal quartz, drusy amethyst, wire silver, acanthite, pyrargyrite, stephanite, barite, calcite, aragonite...tabular barite, pink-purple diaspore crystals, acanthite, and the type specimens of hodrusite. Calvary..._,./' a,;: J Figure 18. Native silver with acanthite, marcasite-pyrite, quartz and calcite, 13.4 cm...and crystal groups, from mines in and outside of Germany. I admire the rare specimens and crystal groups |  | | Journal (article/letter/editorial) | | at this year’s Tucson Gem and Mineral Show are porphyry or other types of copper deposits, each the historical...primary copper ore mineral, it is widespread in porphyry copper deposits that range from Alaska through...Indonesian and Philippine porphyry systems. Loosely related to some porphyry occurrences are contactmetamorphic...from the Old Lurzenbach mine, Gosenbach, Siegen, Germany. Jack Halpern specimen, Jeff Scovil photo. distribution...quarries of Fairfax County and the Goose Creek quarry near Leesburg, Loudoun County; it is reported in |  | | Journal (article/letter/editorial) | | this region and are available for the most detailed studies. Large gold deposits in the region are characterized...located in the Tenkinsky district of the Magadan region. Structurally speaking, the deposit is confined...located in the Tenkinsky district of the Magadan region (60 km north of the Natalka deposit). The ore-bearing...rocks are intruded by Upper Jurassic (J3 ) diorite porphyry dikes and Late Cretaceous (K1 ) rhyodacites and...Deposits of gold–quartz veins in granitoids or porphyry gold [5,7] of the GIT are associated with granitoid |
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