 | | Journal (article/letter/editorial) | | the low-sulfidation epithermal Emperor gold deposit, Vatukoula, Fiji D. W. Pals and P. G. Spry Department...The epithermal, low sulfidation Emperor gold telluride deposit in Fiji, hosted by Late Miocene-Early Pliocene...western flank of the Tavua Caldera. Gold is largely in the form of āāinvisibleāā gold in arsenian pyrite...pyrite but 10 to 50% of gold is in the form of precious metal tellurides. Gold mineralization occurs in steeply...where the flatmake intersects steep structures. Gold-rich tellurides preceded the formation of silver-rich |  | | Journal (article/letter/editorial) | | Mineralogical and GeochemicalStudiesof the Emperor Gold Telluride Deposit, Fiji M. AHMAD, NorthernTerritoryGeological...Mba Volcanics,of Mioceneage,in the north of Viti Levu, Fiji. The veinsfilledfracturesthat developedmainlyin...are dominantly quartzwith minorpyrite,tellurides,gold,sphalerite,arsenopyrite,chalcopyrite,tetrahedrite...H2S,COa, and HaTe, with lossof H2Sthe main causeof gold deposition. Assuming only partialequilibriumin the...It is located at Vatukoula about 8 km inland from the northern coastof Viti Levu, Fiji (Fig. 1). THE |  | | Journal (issue) | | . . . . 277 by D. London The Emperor mine, Vatukoula, Viti Levu, Fiji . . . . . . . . . . . . . . ....sale of the book. The first print, entitled āThe Mine with the Iron Door,ā depicts a fantasy underground...underground collecting scene at the famous lost gold mine in the Catalina Mountains above Tucson. The print was...scene at the Old uma mine near Tucson (appropriate, inasmuch as he wrote the Old uma mine chapter in the book)...ārunnerā is someone who ārunsā with minerals from the mine or other exposure to dealers, to sell specimens |  | | Journal (article/letter/editorial) | | the low-sulfidation epithermal Emperor gold deposit, Vatukoula, Fijiāā (2003) by D. W. Pals and P. G...paper on telluride mineralogy in the Emperor gold mine in Fiji, Pals and Spry (2003) referred several...distribution of individual tellurides in the Emperor mine, Pals and Spry (2003, pp 302ā304) noted that...that, in a general sense, I had found that the gold-rich assemblage calaverite-krennerite-sylvanite occurred...the silver-rich assemblage petzitehessite-native gold extended down to deeper levels. They then commented |  | | Journal (article/letter/editorial) | | Geology Vol. 88, 1993, pp. 1017-1052 The PorgeraGold Mine, PapuaNew Guinea:MagmaticHydrothermalto EpithermalEvolutionof...reflectpartialoxidationof a fluidwith bulk (ā¢34S ā¢ 4 per mil. Gold is suggested to havebeen transportedasa chloridecomplexin...1990 hasexceeded1 millionouncesAu per year. The mine alsocontainssubstantial reservesof ā¢ i i i , ....hydrothermalbreccias,containing abundantnative gold (AuĆø) and Au-Ag tellurides. These veins crosscut...pletionsof Ta, Nb, andTi in arcmagmas becomeunandhigh field strengthelementabundances, includ- stable.Conclusiveevidencefor |  | Tombros, S., St. Seymour, K., Williams-Jones, A. E., Spry, P. G. (2007) The Genesis of Epithermal Au-Ag-Te Mineralization, Panormos Bay, Tinos Island, Cyclades, Greece. Economic Geology, 102 (7) 1269-1294 doi:10.2113/gsecongeo.102.7.1269 | Journal (article/letter/editorial) | | veins that extend for at least 500 m. In places, gold telluride mineralization occurs in hydraulic breccias...Spry and Scherbarth, 2006). Unexploited low-grade gold-silver telluride mineralization at Panormos Bay...Panormos Bay precious metal system and epithermal gold-silver telluride mineralization elsewhere that is...albite, ankerite, barite, galena, sphalerite, native gold, and native silver. The crustification bands and...native Ag, native Cu, native As, stromeyerite, pyrargyrite FIG. 6. Backscattered electron images of (a) |  | | Journal (article/letter/editorial) | | Alkalic IntrusiveRocksAssociatedwith the Mount Kare Gold Deposit, PapuaNew Guinea:Comparison with thePo...alkalicepithermalgroup,to whichCrippleCreek (Colorado),Emperor(Fiji), and Ladolam(Lihir Island,PapuaNew Guinea)alsobelong...preciousmetalexploration. Introduction THE Mount Kare gold depositand associated intrusive complexis locatedin...depositsof nuggetgold in colluvialmaterials,but primary gold has alsobeen found in the surrounding hills.Hard-rockexploration...PapuaNew Guinea,showinglocationof the MountKare gold deposit(modified fromCooperandTaylor,1987).SLF= |  | | Catalog/List | | Design and minors in History and Geology. Kevin has field-collected mineral specimens at hundreds of localities...Colorado, azurite and malachite in Jerome, Arizona, gold in Wickenburg, Arizona, and wulfenite, mimetite...add to his collection through mineral shows and field exploration and has personally owned and sold specimens...a collection of gold aurei and solidi representing every Roman and Byzantine Emperor from 44 BC to 1000...Ward Minera! on QUARTZ RHODOCHROSITE District Mine. Climax Climax olTolg-Yole Lake. County. ncredibly |  | Ronacher, E., Richards, J. P., Reed, M. H., Bray, C. J., Spooner, E. T. C., Adams, P. D. (2004) Characteristics and Evolution of the Hydrothermal Fluid in the North Zone High-Grade Area, Porgera Gold Deposit, Papua New Guinea. Economic Geology, 99 (5) 843-867 doi:10.2113/gsecongeo.99.5.843 | Journal (article/letter/editorial) | | Fluid in the North Zone High-Grade Area, Porgera Gold Deposit, Papua New Guinea E. RONACHER,ā ,* J. P....Guinea Abstract The ~20-million-ounce (Moz) Porgera gold deposit, Papua New Guinea, is hosted by 6-m.y.-old...sedimentary rocks in which the intrusions were emplaced. Gold-bearing veins occur in three stages: (1) magnet...magnetite-sulfide-carbonate Ā± quartz veins with minor gold (prestage I), (2) base metal-sulfide-carbonate Ā±...veins (stage I), and (3) quartz-roscoelite-pyrite-gold veins and breccias (stage II). Stage II veins are |  | | Journal (article/letter/editorial) | | from hundreds of localities worldwide, and unlike gold, silver is quite a reactive element, forming more...to be the third metal widely utilized by humans (gold and copper were the first). The earliest known siIver...The Iliad. In ancient times silver was rarer than gold. This probably reflects the fact that the earliest...in the ancient world, was considerably rarer than gold. Chlorargyrite appears to have been the fvst silver...King Solomon is said to have received shipments of gold and silver from āTharshish and the Isles,ā thought |  | | Catalog/List | | extremely ine, specimens from the Mammoth-St. Anthony Mine of Tiger, Arizona: now a vanished place alive only...potential mineral buying area, or go into another mine. He travelled to areas that had seen few Americans...alone someone hunting crystals. He went to Bolivia, Fiji, Ethiopia, Rhodesia, and many other places. Given...Atacama Desert to collect Underground Nikolaevskiy Mine, Dalnegorsk, Russia, 1993. "RPG," Artigas, Uruguay...collection that he donated to the Neto and Ed Swoboda to mine University of Arizona RRUFF Project. Another was |  | | Book | | Papua-New Guinea (speciĀ fically Bougainville), and Fiji. Cyprus, Ceylon, the Philippines, and Japan are...27 Tasmania 13 New Zealand 2 Bougainville.... 1 Fiji 1 New Caledonia... 2 46 102 At the head of each...Boettcher, T. J. Casadevall, Peter Deines, D. P. Gold, D. M. Kerrick, M. L. Keith, A. W. Rose, C. P. Thornton...50, p. 164-168 Heim, Ī., 1 9 3 4 , The molybdenum mine at Azegour: Soc. Econ. Geol., v. 29, p. 76-83..., Allanite et epidote dans des corneennes de la mine d'Azegour, Haut-Atlas: Serv. Geol. Maroc. Notes |  | | Journal (article/letter/editorial) | | 2005 Invisible Gold from the Hishikari Epithermal Gold Deposit, Japan: Implication for Gold Distribution...presence of invisible gold was confirmed in arsenian pyrite from the Hishikari epithermal gold deposit, Kagoshima...analyses. The relative concentration of invisible gold may be positively correlated with As contents (0...having higher As contents accompanied by invisible gold occur dominantly in the middle stage of fine-adularia-quartz...Keywords: invisible gold, arsenian pyrite, Au, As, correlation, EPMA, SIMS epithermal gold deposit, located |  | | Journal (issue) | | :Refugio Jlline Famous mineral localities: The Refugio mine, Municipio de Choix, Sinaloa, Mexico .............Front Cover Smithsonite, 4 cm wide, from the Refugio mine, Choix, Sinaloa, Mexico. William Dameron collection;...beginning on page 453. Frontispiece (page 400) Pyrargyrite from Taxco, Mexico. Oil on Canvas, by Wendell...that were collected and stored more carefully. The mine is still being actively worked today, as the city...6) San Pedro Corralitos, Amatitlan, San Francisco mine Mexico V.Ā· (2008, vol. 39, no. 6) History, Milpillas |  | | Journal (article/letter/editorial) | | with yellowish to brownish tint, depending on the gold and copper contents. The Ag ā Cu sulfotelluride...88 and aH2Te(aq) = 10 ā12.08 , approximately. The gold and silver ion content in stage V solutions was...metals gold, silver, copper, and arsenic, as well as cubic stromeyerite (CuAgS), and pyrargyrite (Ag3SbS3)...(Ag3SbS3). Native gold with traces of Cu and Ag (finess of 998) occurs as flakes disseminated in clear quartz...stromeyerite and pyrargyrite (up to 1 wt.% Cu, 1.4 wt.% As, and 0.2 wt.% Te). Native gold also occurs as |  | Li, Zhan-Ke, Li, Jian-Wei, Cooke, David R., Danyushevsky, Leonid, Zhang, Lejun, OāBrien, Hugh, Lahaye, Yann, Zhang, Wen, Xu, Hai-Jun (2016) Textures, trace elements, and Pb isotopes of sulfides from the Haopinggou vein deposit, southern North China Craton: implications for discrete Au and AgāPbāZn mineralization. Contributions to Mineralogy and Petrology, 171 (12) doi:10.1007/s00410-016-1309-x | Journal (article/letter/editorial) | | Sb. Invisible Au mostly occurs as lattice-bound gold in Py2 (up to 92 ppm Au) and Py3 (up to 127 ppm...The field, textural, compositional, and lead isotopic data led us to conclude that the early gold-bearing...not be genetically related to each other. Keywords Gold veins Ā· AgāPbāZn veins Ā· Trace elements Ā· In situ...situ lead isotopes Ā· Haopinggou Introduction Gold vein deposits in Precambrian metamorphic terrains constitute...constitute one of the worldās most important gold resources, both in terms of historical production and |  | | Book | | Collectio Mineralium The catalog of Holy Roman Emperor Leopold IIās mineralogical collection edited by... Collectio mineralium The Catalog of Holy Roman Emperor Leopoldās II Mineralogical Collection edited by... Collectio Mineralium : the catalog of Holy Roman Emperor Leopold IIās mineralogical collection / edited...Collectio mineralium. The Catalog of Holy Roman Emperor Leopoldās II Mineralogical Collection, Ā© 2022 Author(s)...to mention his deep involvement in the broader field of scientific museology. For these reasons, I greatly |  | | Book | | chequered history. During the Austrian regime, the emperor Josef II acquired some of the cabinets for the...Wyartite, Vandenbrandeite, Becquerelite Uraninite, gold Veszelyite Scorzalite Shinkolobwe, Shaba, Za'ire... 24 The Minerals Good - Very Good Diamond Pyrargyrite Stibnite Bournonite Galena Millerite Tetrahedrite...particularly interesting collection of miners' lamps and mine surveying instruments. Ancient and mediaeval mining...worn by mine officials of Saxony on ceremonial occasions. A special attraction is a model mine, 20m below |  | | Journal (issue) | | Advertising Manager Thomas P. Moore Tpmoorel@cox.net A gold specimen from the Spanish Dry Diggings, Eldorado...EUCLASE with Albite, 11.2 cm, from the La Marina mine, Muzo District, Boyaca Department, Colombia. See...mineral room wall. And in 2016 we began presenting gold medallions-large pins with a magnetic clasp--that...While other children struggled mightily to avoid field trips and family outings to the purportedly dusty...specimens. ~ How, after being inactive in this field for several years, we have accumulated a line stock |  | | Book | | 1umankind since prehistoric times such as quartz 1nd gold, but also ~minerals first described quite :ecently...Crystals up to 140mm (5Ā½ in) long occurred in the Ray mine and in Bisbee, Arizona, USA. Very fine spinel-law...electronics, electrical engineering, ingredient in gold alloys. 9 Silver Ag CUBIC ā¢ā¢ā¢ Properties: C...association with acanthite, stephanite, proustite, pyrargyrite, copper and many other minerals. The best specimens...100 mm (4 in) long, come also from the San Genaro Mine in Huancavelica and Uchucchaqua, Peru. New finds |  | | Journal (article/letter/editorial) | | exceptionally largeāapproximately 257 tonnes (t) of gold and 6,000 t of silver (Bonham and Papke, 1969; Smith...unpub. report, 1968). Placer gold was discovered in 1850 and lode gold-silver deposits were discovered...member of the Kate Peak Formation (Fig. 3), and field relations do not make the relative ages clear. Structure...Chollar South C Tun nel Brunswick Decline Gold Hill E. Yellow Jacket CĆ BĆ Occidental OL L...productive part of the Comstock lode at the Overman mine, the Silver City lode (Fig. 2) strikes about N 50Ā° |  | | Journal (article/letter/editorial) | | the main silver minerals is not much higher - pyrargyrite 59.8 %, proustite 65.3 %, 128 stephanite 68...empire and for minting both silver and gold coins, given by the emperor Zikmund to Kaspar Schlick as early... when the minting rights were obtained by the emperor Ferdinand I., who obtained by confiscation the...JĆ”chymov silver was caused by the circumstance that gold coins were in short supply to satisfy needs for...corresponding in value to the Rheingulden and the Austrian gold coin Guldiner. Another aspect of the success was |  | | Journal (article/letter/editorial) | | of the coupled behavior of gold and silver in hydrothermal processes: Gold ļ¬neness, Au/Ag ratios and their... Rickard Keywords: Hydrothermal gold deposits Ore geochemistry Gold ļ¬neness Au(Ag)-bearing pyrite Thermodynamic...modeling Au/Ag ratios a b s t r a c t An estimation of gold ļ¬neness deposited from aqueous sulphideāchloride...of hydrothermal gold deposits of different types are summarized. Wide ranges of gold ļ¬neness and low...ore-forming solutions (types IāIII). High ļ¬neness gold and high values of (Au/Ag)ore ratio of AuāTe, AuāAs |  | Tombros, Stylianos, St. Seymour, Karen, Spry, Paul G., Williams-Jones, Anthony (2005) Greenockite and zincian greenockite in epithermal polymetallic AgāAuāTe mineralization, Tinos Island, Hellas: Description and conditions of formation. Neues Jahrbuch fĆ¼r Mineralogie - Abhandlungen, 182 (1) 1-9 doi:10.1127/0077-7757/2005/0024 | Journal (article/letter/editorial) | | mineralization (Dunn 1979, Johnson et al. 1990), orogenic gold (Golding 1978), and sedimentary-hosted lead-zinc...native metals gold, silver, copper, and arsenic, as well as stromeyerite and pyrargyrite. Stage IX consists...Mineralogical and geochemical studies of the Emperor gold telluride deposit, Fiji. ā Econ. Geol. 82: 345 ā 370. Avigad...(1977): Sunnyside Mine, Eureka Mining District, San Juan Country, Colorado: Geochemistry of gold and base metal...Mineralogy, geochemistry and origin of the Kalgoorlie gold deposits, Western Australia. ā Ph. D. Thesis, Univ |  | | Journal (article/letter/editorial) | | Manuscript Invisible gold in arsenian pyrite from the high-grade Hishikari gold deposit, Japan: Significance...K. Shimada, Invisible gold in arsenian pyrite from the highgrade Hishikari gold deposit, Japan: Significance...pertain. Invisible gold in arsenian pyrite from the high-grade Hishikari gold deposit, Japan: Significance...Hishikari deposit, which has produced more than 224 t of gold since 1985 (as of March 2016), is world-famous for...Microanalyses of arsenian pyrite from the Hishikari gold deposit by SIMS and EPMA revealed that Au concentrations |
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