 | | 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 ‘‘invisible’’ gold in arsenian pyrite...pyrite but 10 to 50% of gold is in the form of precious metal tellurides. Gold mineralization occurs in steeply...tellurium-bearing minerals, sylvanite, calaverite, krennerite, petzite, hessite, coloradoite, melonite, native tellurium |  | | 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...krennerite,sylvanitc,andnativetellurium;the second,by petzite, hessReandnativegold,indicatinga declinein tellurium...H2S,COa, and HaTe, with lossof H2Sthe main causeof gold deposition. Assuming only partialequilibriumin the |  | | Journal (article/letter/editorial) | | assemblages............................... Conclusions Vatukoula PACE 1460 .................................... Coloradoite-calaverite-petzite Coloradoite-gold Sylvanite-hessite Petzite-sylvanite-hessite It shouldbe...Tellurium-empressite Tellurium-sylvanite Calaverite-gold Empressite-hessite Hessite-silver Instead,one wouldexpectto...Calaverite-petzite Sylvanite-petzite Sylvanite-hessite Sylvanite-empressite Petzite-hessite Gold-hessite...Gold-hessite Gold-petzite The close correlationbetween these expectedand observednatural assemblages will shortlybe |  | | Journal (article/letter/editorial) | | Invisible Gold and Tellurium in Arsenic-Rich Pyrite from the Emperor Gold Deposit, Fiji: Implications...Implications for Gold Distribution and Deposition DAVID W. PALS, PAUL G. SPRY,† Department of Geological and Atmospheric...Canada N6G 4X8 Abstract Gold is found in three different forms in the Emperor gold deposit: as “invisible”...submicrometer-size inclusions of gold in arsenian pyrite, as visible native gold and/or electrum, and as tellurides...tellurides (calaverite, krennerite, sylvanite, and petzite). Similarly, Te occurs as invisible tellurium or |  | | Journal (article/letter/editorial) | | Wall‐rock alteration at the Emperor gold‐silver telluride deposit, Fiji a M. Ahmad & J. L. Walshe b...Wall‐rock alteration at the Emperor gold‐silver telluride deposit, Fiji, Australian Journal of Earth...Wall-rock alteration at the Emperor gold-silver telluride deposit, Fiji M. AHMAD1 AND J. L. WALSHE2 1...Box 4, Canberra, ACT 2601, Australia. In the Emperor mine area, widespread propylitic alteration was followed...alteration. INTRODUCTION The gold-silver telluride lodes at the Emperor mine are typical of epithermal deposits |  | | Journal (article/letter/editorial) | | epithermal and orogenic gold deposits: application to the Emperor gold-telluride deposit, Fiji Andrew P. Fornadel...epithermal and orogenic gold deposits: application to the Emperor gold-telluride deposit, Fiji, Ore Geology Reviews...epithermal and orogenic gold deposits: application to the Emperor gold-telluride deposit, Fiji Andrew P. Fornadela...Tellurides; Native tellurium; Emperor deposit; Fiji; Epithermal gold deposits; orogenic gold deposits 1 ABSTRACT...the alkaline igneous rock-related Emperor gold telluride deposit, Fiji. Based on similarities in the geologic |  | | Journal (article/letter/editorial) | | Characteristics of the Tuvatu Gold-Silver Telluride Deposit, Fiji: Comparisons with the Emperor Deposit NANCY L. SCHERBARTH*...The Tuvatu gold-silver telluride deposit with reserves of 13 t Au is the second largest gold deposit in...in Fiji after the large Emperor gold telluride deposit (production, and proven and probable reserves of...occur along the >250-km east-northeast–trending Viti Levu lineament. They are spatially associated with...4–4.6 Ma) and having a shoshonitic affinity. The gold mineralization in both deposits is spatially and |  | | Journal (article/letter/editorial) | | University] at 23:14 19 October 2014 Vindicator Mine, Cripple Creek, Teller County, Colorado I n terms...specimens of essentially massive gold tellurides associated with coarse native gold. Cripple Creek, on the other...that resemble cuneiform characters. Sylvanite is gold-silver telluride with the composition (Au,Ag)2Te4...published analyses commonly show minor variations in the gold and silver content, and the presence of such other...Sylvanite alters to loosely coherent pseudomorphs of gold. Sylvanite is almost unknown in the eastern United |  | | Report (issue) | | Z = 16 X-ray Powder Pattern: Empress Josephine mine, Colorado, USA. 2.70 (100), 2.23 (80), 3.81 (60)...100.53 100.7 100.1 100.00 (1) Empress Josephine mine, Colorado, USA; average of two analyses, corresponding...low-temperature gold-poor hydrothermal vein deposits. Association: Tellurium, sylvanite, petzite, hessite,...(Empress Josephine mine, Colorado, USA); pyrite, rodalquilarite (Tombstone, Arizona, USA); gold, tellurium,... hessite, petzite, rickardite (Pitman, Canada). Distribution: In the USA, in Colorado, from the Empress |  | | Report (issue) | | Association: Altaite, calaverite, krennerite, petzite, gold, pyrite, chalcopyrite, sphalerite, galena, pyrrhotite...Distribution: In the USA, in Colorado, at the Good Hope mine, Vulcan, Gunnison Co.; in the La Plata district...the Cresson mine, Cripple Creek district, Teller Co.; in California, at the Norwegian mine, near Tuttletown...Tuttletown, and the Jamestown mine, Tuolumne Co.; in Nevada, at the Twin Creeks and Getchell mines, Potosi...Potosi district, Humboldt Co.; from the Outlaw mine, Round Mountain district, Nye Co.; and at the Gus Schave |  | | Journal (article/letter/editorial) | | MAY-JUNE, 1970 NEW ELECTRON PROBE AND OPTICAL DATA ON GOLD TELLURIDES of Geology,University E. F. Sfuuprt,...variations in specimens from difierent deposits. Gold contents are frequently higher than suggested by...Spectral reflectivity values increase with increasing gold content In spite of deviations from stoichiometry...correction procedure. Pure elements as well as synthetic gold and silver tellurides, kindly made available by...Cripple Creek, Colorado, and from the Emperor Mine, Vatukoula, Fiji. Figure 1 illustrates a telluride associa- |  | Zhang, Jian, Zhang, Yao, Richmond, William, Wang, Hai-peng (2010) Processing technologies for gold-telluride ores. International Journal of Minerals, Metallurgy, and Materials, 17 (1). 1-10 doi:10.1007/s12613-010-0101-6 | Journal (article/letter/editorial) | | 1007/s12613-010-0101-6 Processing technologies for gold-telluride ores Jian Zhang1), Yao Zhang1), William...accepted: 1 March 2009) Abstract: Gold telluride ores are important gold refractory ores due to the presence...The classification and main physical properties of gold telluride ores were described, and possible treatment...procedures are much easier for gold tellurides compared to other refractory gold-bearing ores. For the conventional...pretreatment such as oxidation is required to achieve high gold recovery. Roasting is a relatively simple but not |  | | Report (issue) | | Total 99.62 100.00 100.30 100.00 (1) Zavodinskii mine, Kazakhstan. (2) San Sebastián, Mexico. (3) Boteş...Calaverite, sylvanite, altaite, petzite, empressite, rickardite, gold, tellurium, pyrite, galena, tetrahedrite...from the Zavodinskii mine, near Ziryanovsk, Altai Mountains. In the Bereznyakov gold deposit and the Yaman-Kasy...Australia. In the Emperor mine, Vatukoula, and in the Tuvatu Au–Ag–Te deposit, Viti Levu, Fiji Islands. At...Occidental, Phillipines. In Chile, from the Condorriaco mine, near Coquimbo, and in the Wendy open pit, El Indio-Tambo |  | | Report (issue) | | corresponds to (Au1.02 Ag0.02 )Σ=1.04 Te2.00 . (2) Moose mine, Cripple Creek, Colorado, USA; Fe is from pyrite;...coloradoite, sylvanite, krennerite, petzite, hessite, tellurium, gold, pyrite, quartz. Distribution: In...the Konstantin-Ovkoye gold deposit, Krasnoyarskii region, and the Bereznyakov gold deposit, Southern Ural...mines in Cripple Creek, Teller Co.; the Smoky Hill mine, Boulder Co.; the Central City district, Gilpin...Campbell mine, Bisbee, and at Tombstone, Cochise Co., Arizona; from the Golden Sunlight mine, near Whitehall |  | | Report (issue) | | 5.265 Z=1 X-ray Powder Pattern: Robb-Montbray mine, Canada. 2.82 (100), 1.549 (60), 2.06 (50), 1.918...Stanislaus mine, California, USA; corresponding to (Ni0.99 Ag0.02 )Σ=1.01 Te2.00 . (2) Strathcona mine, Canada;...Altaite, petzite, hessite, calaverite, coloradoite, krennerite, tellurobismuthite, montbrayite, gold, pyrite...Calaveras Co., and the Jamestown mine, Tuolumne Co.; in Colorado, at the Cresson mine, Cripple Creek, Teller Co...from the Campbell mine, Bisbee, Cochise Co. In Ontario, Canada, from the Strathcona mine at Sudbury; in |  | | Journal (article/letter/editorial) | | the low-sulfidation epithermal Emperor gold deposit, Vatukoula, Fiji’’ (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 302–304) 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 |  | Zhao, J., Brugger, J., Xia, F., Ngothai, Y., Chen, G., Pring, A. (2013) Dissolution-reprecipitation vs. solid-state diffusion: Mechanism of mineral transformations in sylvanite, (AuAg)2Te4, under hydrothermal conditions. American Mineralogist, 98 (1) 19-32 doi:10.2138/am.2013.4209 | Journal (article/letter/editorial) | | were observed as intermediate products, including petzite (Ag3AuTe2), hessite (Ag2Te), and two compositions...which in turn breaks down to a mixture of low petzite and low hessite below 120 °C via exsolution. As...nucleation onto the sylvanite, calaverite, and petzite surfaces. The dissolution of sylvanite and of the...pre-treatment of telluride-rich gold ores. Keywords: Sylvanite, gold, dissolution-reprecipitation, exsolution...as porphyry copper systems or intrusion-related gold deposits, The importance of interface-coupled dissolution |  | Bindi, L., Rossell, M. D., Van Tendeloo, G., Spry, P. G., Cipriani, C. (2005) Inferred phase relations in part of the system Au?Ag?Te: an integrated analytical study of gold ore from the Golden Mile, Kalgoorlie, Australia. Mineralogy and Petrology, 83 (3) 283-293 doi:10.1007/s00710-004-0065-1 | Journal (article/letter/editorial) | | system Au–Ag–Te: an integrated analytical study of gold ore from the Golden Mile, Kalgoorlie, Australia...assemblage calaverite–sylvanite–hessite in a sample of gold ore from the Golden Mile deposit, Kalgoorlie, Australia...(1965). Introduction Epizonal and mesozonal gold and gold–silver telluride deposits spatially associated...igneous rocks are among the largest resources of gold in the world. They include Golden Mile, Kalgoorlie...Clout et al., 1990; Shackleton et al., 2003), Emperor, Fiji (e.g., Ahmad et al., 1987; Pals and Spry, 2003) |  | | Journal (article/letter/editorial) | | of native gold and electrum, the gold telluride calaverite may well be the most important gold ore mineral...development of all other Colorado gold districts. Unlike most gold deposits, weathering of those characterized...fine-grained and dull, mustard-colored secondary gold that is disbursed as tiny particles as the individual...most exciting gold occurrences are either dominated by or contain significant amounts of gold tellurides...tellurides. Sylvanite, another important gold telluride, was featured in a previous Connoisseur’s Choice (Cook |  | | Report (issue) | | 2 osmium 190.2 iridium 192.2 platinum 195.1 gold 197.0 mercury 200.5 thallium 204.4 lead 207.2............................. R6 Iron Oxide-Copper-Gold Deposits............................................................................. R9 Orogenic Gold Deposits......................................................................... R11 Carlin-Type Gold Deposits..................................................................................... R15 Mine Waste Characteristics.......................... |  | | Journal (article/letter/editorial) | | 1007/s00710-006-0128-6 The gold–vanadium–tellurium association at the Tuvatu gold–silver prospect, Fiji: conditions...Cook Summary The Tuvatu gold–telluride prospect is one of several epithermal gold systems along the >250...>250 km northeast trending Viti Levu lineament, Fiji, which are genetically associated with alkalic magmatism...conditions of formation of the telluride-native gold stage at Tuvatu (250 C, Au ¼ 1 ppb, Te ¼ 1...coexistence of roscoelite and calaverite in epithermal gold systems elsewhere. The presence of magnetite with |  | Liu, Junlai, Zhao, Shengjin, Cook, Nigel J., Bai, Xiangdong, Zhang, Zhaochong, Zhao, Zhidan, Zhao, Haibin, Lu, Jun (2013) Bonanza-grade accumulations of gold tellurides in the Early Cretaceous Sandaowanzi deposit, northeast China. Ore Geology Reviews, 54. 110-126 doi:10.1016/j.oregeorev.2013.03.003 | Journal (article/letter/editorial) | | com/locate/oregeorev Bonanza-grade accumulations of gold tellurides in the Early Cretaceous Sandaowanzi deposit...28 March 2013 Keywords: Gold tellurides Epithermal deposit Bonanza-grade gold mineralization Sandaowanzi...China a b s t r a c t The Sandaowanzi epithermal gold deposit (0.5 Moz or ca. 14 tons), located at the... is unique in that nearly all the gold (>95%) is contained in gold tellurides mostly in bonanza grade...grains of Ag-rich tellurides (mainly hessite and petzite) coexist with sulfides (pyrite, sphalerite, galena |  | Sung, Y.-H., Ciobanu, C. L., Pring, A., Brügger, J., Skinner, W., Cook, N. J., Nugus, M. (2007) Tellurides from Sunrise Dam gold deposit, Yilgarn Craton, Western Australia: a new occurrence of nagyágite. Mineralogy and Petrology, 91 (3) 249-270 doi:10.1007/s00710-007-0199-z | Journal (article/letter/editorial) | | in The Netherlands Tellurides from Sunrise Dam gold deposit, Yilgarn Craton, Western Australia: a new...University of Oslo, Oslo, Norway 5 Sunrise Dam Gold Mine, AngloGold Ashanti Ltd, Laverton, Australia 2...found together with eight tellurides (hessite, petzite, calaverite, altaite, tellurantimony (and Bi-bearing...and post-D4 veinlets in the world-class orogenic gold deposit at Sunrise Dam, Eastern Goldfields Province...association of telluride assemblages and native gold is interpreted in terms of remobilization of ore |  | | Journal (article/letter/editorial) | | Petrol DOI 10.1007/s00710-014-0334-6 ORIGINAL PAPER Gold-telluride-sulfide association in the Sandaowanzi...Springer-Verlag Wien 2014 Abstract The Sandaowanzi gold-telluride deposit, with a total reserve of ≥25 t...precipitation of tellurides, which are mainly composed by petzite, sylvanite and to a lesser extent, hessite, calaverite...–9.43, logαAu+(aq)/ αAg+(aq) =−6.87 to –6.56, and gold is mostly scavenged from a HTe−-dominant ore-forming...magmatic-hydrothermal mineral deposits, especially in epithermal gold deposits which are temporally and spatially associated |  | | Journal (article/letter/editorial) | | MINERALOGY OF THE BELLEROPHON-NELSON TELLURIDE-BEARING GOLD DEPOSIT, ST. IVES CAMP, YILGARN CRATON, WESTERN...discovered Bellerophon-Nelson telluride-bearing gold deposit at the St. Ives camp, Western Australia...Stages II and III contain economic gold mineralization, and the gold grains are strongly associated with...surround the mineralized veins, and trace amounts of gold precipitated in these altered rocks. The albite...common telluride minerals include calaverite, petzite, tellurobismuthite, and altaite, and these minerals |
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