 | Cooke, D. R., Deyell, C. L., Waters, P. J., Gonzales, R. I., Zaw, K. (2011) Evidence for Magmatic-Hydrothermal Fluids and Ore-Forming Processes in Epithermal and Porphyry Deposits of the Baguio District, Philippines. Economic Geology, 106 (8) 1399-1424 doi:10.2113/econgeo.106.8.1399 | Journal (article/letter/editorial) | | and Porphyry Deposits of the Baguio District, Philippines DAVID R. COOKE,1,â CARI L. DEYELL,1,* PATRICK...7001, Australia 2 Anglo American Exploration Philippines Inc., 1101 Pearlbank Centre Building, 146 Valero...Salcedo Village, Makati City, Metro Manila, Philippines Abstract The Baguio district contains a diverse...plate and the Scarborough Ridge beneath northern Luzon over the past 3 m.y. Rapid uplift and exhumation...deposits of the Baguio district (including Antamok and Acupan, the two largest Au deposits) are intermediate |  | Cooke, David R., McPhail, Derry C., Bloom, Mark S. (1996) Epithermal gold mineralization, Acupan, Baguio District, Philippines; geology, mineralization, alteration, and the thermochemical environment of ore deposition. Economic Geology, 91 (2) 243-272 doi:10.2113/gsecongeo.91.2.243 | Journal (article/letter/editorial) | | 243-272 Epithermal GoldMineralization, Acupan, BaguioDistrict,Philippines: Geology, Mineralization, Alteration...epithermal veinsystem formedat 0.65 Ma at Acupan,Baguio district, Philippines, duringa periodof highK magmatism...and Hedenquist, 1990).Over200 metrictons(t) of at Acupan and Antamok (Sawkins et al., 1979), moderugeogoldhavebeenproduced...fluidcompositions epithermaland porphyrysystems at Acupanand Acupan South(CookeandBloom,1990),thegeology andgeochemis*...nes(CookeandBloom,1990).The geology of the Acupan-Itogon areais illustrated in Figures2 and3; the unitsexposed |  | | Journal (article/letter/editorial) | | Epithermal Au-Ag-Te Mineralization, Acupan, Baguio District, Philippines: Numerical Simulations of Mineral...inclusion and mineralogical studies of the Acupan gold mine, a large gold-silver-tellurium-bearing low-sulfidation...low-sulfidation epithermal deposit in the Philippines. Our numerical modeling results show that a single...deposition of most of the precious and base metals at Acupan. Continuous boiling, boiling with intermittent...and inhibited the precipitation of hessite and calaverite. Mixing of low-temperature ground waters with |  | | Journal (article/letter/editorial) | | OCCURRENCE ACUPAN OF TELLURIDE GOLD MINE, MINERALS MOUNTAIN AT THE PROVINCE, PHILIPPINES K. J....gold-bâąaring veins in the Baguio district of Northern Luzon, Philippine Islands, are of the epithermaltype....1928 in very high grade ore from the Antamok gold mine. Recently, tellurides were recognizedin high grade...level in the Acupan gold mine. The examination of other patchesof high-grade ore in this mine has shown...tellurides include petzite, hessite,altaite, calaverite, sylvanite and coloradoite. They completelyfill |  | Sajona, Fernando G., Izawa, Eiji, Motomura, Yoshinobu, Imai, Akira, Sakakibara, Hiroyuki, Watanabe, Koichiro (2002) Victoria Carbonate-Base Metal Gold Deposit and Its Significance in the Mankayan Mineral District, Luzon, Philippines. Resource Geology, 52 (4) 315-328 doi:10.1111/j.1751-3928.2002.tb00142.x | Journal (article/letter/editorial) | | Significance in the Mankayan Mineral District, Luzon, Philippines Fernando G. SAJONA, Eiji IZAWA*, Yoshinobu...Bureau, North Avenue, Diliman, Quezon City, Philippines [e-mail: diksajona@hotmail.com] * Department...in the Mankayan mineral district, northern Luzon, Philippines. It occurs just south of a high-sulfidation...metal, gold, epithermal, Lepanto, Mankayan, Luzon, Philippines from the depleted Lepanto enargite deposit...Introduction The Mankayan mineral district, northern Luzon, Philippines, hosts several porphyry copper and epithermal |  | MAGLAMBAYAN, Victor B., ISHIYAMA, Daizo, MIZUTA, Toshio, IMAI, Akira, ISHIKAWA, Yohei (1998) Geology, Mineralogy, and Formation Environment of the Disseminated Gold-Silver Telluride Bulawan Deposit, Negros Occidental, Philippines. Resource Geology, 48 (2) 87-104 doi:10.1111/j.1751-3928.1998.tb00009.x | Journal (article/letter/editorial) | | Telluride Bulawan Deposit, Negros Occidental, Philippines Victor B. MAGLAMBAYAN*, Daizo ISHIYAMA**, Toshio...porphyry copper belt of southwest Negros island, Philippines. Propylitic, K-feldspar, sericitic, and carbonate...tetrahedite-tennantite with minor amounts of electrum, calaverite, petzite, sylvanite, hessite, tellurobismuthite...sylvanite and calaverite as intergrowths with each other, and the Ag content of calaverite are consistent...560 km south of Manila in the Republic of the Philippines. 1. Introduction The Bulawan gold-silver telluride |  | | Journal (article/letter/editorial) | | [Michigan State University] at 02:13 13 March 2015 CALAVERITE Cripple Creek, Colorado W ith the exception...native gold and electrum, the gold telluride calaverite may well be the most important gold ore mineral...Connoisseurâs Choice (Cook 2005), and its sibling, calaverite, has rightly been suggested for this issue, much...much of which is devoted to Colorado minerals. Calaverite is a yellowish to silver-white, metallic mineral...the addresses above. 96*2: 405,9(3: Calaverite is simple gold telluride (AuTe2), but most analyses |  | | Journal (article/letter/editorial) | | Haranczyk (1978) in veins in the Krakow telluride province, Poland, which also contained Bi [(Ag,Cu, Bi)6Te2S]...Sylvanite Melonite Rickardite Vulcanite Weissite Calaverite Krennerite Kostovite Pestzite Sulfotellurides...krennerite â petzite (Ag3AuTe2) ± rickardite, calaverite (AuTe2) â krennerite â petzite, and kostovite...Mineral MT6a Vulcanite MT6a Native Te MT6a Calaverite MT6b Krennerite MT6b Kostovite MT6b Petzite...of benleonardite from the type locality, Bambolla mine (Mexico), by Stanley et al. (1986) yielded a S : |  | | Journal (article/letter/editorial) | | tellurium-bearing minerals occur in the Golden Mile deposit. Calaverite, petzite, coloradoite, altaite and native gold...greenstone belt. after the now defunct Fimiston gold mine) accounts for 70% of gold production within the...(AuTe2), and also that veins of petzite cross-cut calaverite (AuTe2). His findings suggest that an early gold-rich...gold-rich stage, dominated by the assemblage calaverite â native gold, was followed by a later silver-rich...[Pb5Au (Sb,Bi)Te2S6] was reported in contact with calaverite (Markham 1960), but never with the silver-rich |  | | Journal (article/letter/editorial) | | at Kalgoorlie in the 2.7-Ga Eastern Goldfields Province of the Yilgarn Craton, Western Australia, occur...is coloradoite + native gold (898â972 fine) + calaverite + petzite ± krennerite. Telluride-rich ore (>30...the Golden Mile Fault exposed on the Mt Charlotte mine 22 level. They are filled Editorial handling: B...values well below the stability of calaverite. The absence of calaverite and the dominance of hessite in...Kalgoorlie district, located in the Eastern Goldfields Province of the Archaean Yilgarn Craton, porphyry dykes |  | | Journal (article/letter/editorial) | | III. The most common telluride minerals include calaverite, petzite, tellurobismuthite, and altaite, and...been found in this deposit, some of which, e.g., calaverite, petzite, buckhornite, are important Au carriers...mineralized Stage II and III rocks, of which calaverite, petzite, tellurobismuthite, and altaite are...mainly of rutile with trace amounts of gold + calaverite (Fig. 7a). The finesse of native gold in the...SerPy Calaverite Native gold TABLE 1. REPRESENTATIVE COMPOSITIONS OF NATIVE GOLD, CALAVERITE, AND PETZITE |  | | Journal (article/letter/editorial) | | 瀊 ćș ă« ćŻ ă ăź ăŻ,ă« è»ž ć±±ć°(CordilleraCentral)ăź ăČ ă ă(Benguet)ć° 1Smithă« 21ă4)Smith㯠ăŸăłćł¶ćéš è„ż ćŽ ă瞊蔰 ă ăäž ć ç«Ż...ăBenguetConsolidated ć ăł æ ć14ćčŽ ć äž æ瀟 ăźItogoné èŹ Benguet Consolidated ć±±, ć±± çäœă ăă ćșŠ ă« æŒ ă ă ăă...631,671 568,1484 Antamok 2,281,678 154,6523 Itogon 2,074,270 228,6780 ćŒ ă«é ă,ć§ ă ăź,ć
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š 矀 泶...ăČ,é 㯠䞻 ăš ă㊠èȘç¶ é ăš ăăŠ ć« ăŸă ăă,瀊 è ăź äž éš ă« ăŻCalaveriteć ăłAviræ°2)ă« ă〠ăŠantmokiteăš ćœ ć ă ăă ă ç” æ ...ć ăćą ć€§ ă,仄 ăŠ ä» æ„ă« èł ă€ ăŠ ă ăă Balatocé ć±±1}㯠ć
ăźAcupan é(laă§,Balatocă AngoæČł è· ă12ć© ăź ç1ă«ćš ă,ćź ć±± ćČ© |  | | Journal (article/letter/editorial) | | petzite, sylvanite and to a lesser extent, hessite, calaverite, altaite, unnamed telluride (Au 1.8 Ag 0.2 Te)...China (Cook et al. 2009a), the Acupan and Baguio deposits in Philippines (Cooke and McPhail 2001) and the...and sylvanite and to a lesser extent, hessite, calaverite, altaite, unnamed telluride, krennerite, empressite...assemblages of petzite-hessite and sylvanite-calaverite. Rare native gold, electrum and tellurides were...petzite, sylvanite and to a lesser extent, hessite, calaverite, altaite, unnamed telluride (Au 1.8 Ag 0.2 Te) |  | | Report (issue) | | ........................................... R15 Mine Waste Characteristics........................................................................ R17 Mine Closure...........................................tellurium refinery production in 2013, by country or region..................................................one another at Dashuigou and Majiagou (Sichuan Province) in southwestern China, and the epithermal-like...Buckhornite AuPb2BiTe2S3 Montbrayite (Au,Sb)2Te3 Calaverite AuTe2 Museumite [Pb2(Pb,Sb)2S8][(Te,Au)2] |  | Zhai, Degao, Williams-Jones, Anthony E., Liu, Jiajun, Tombros, Stylianos F., Cook, Nigel J. (2018) Mineralogical, Fluid Inclusion, and Multiple Isotope (H-O-S-Pb) Constraints on the Genesis of the Sandaowanzi Epithermal Au-Ag-Te Deposit, NE China. Economic Geology, 113 (6) 1359-1382 doi:10.5382/econgeo.2018.4595 | Journal (article/letter/editorial) | | Spry, 2003), Golden Sunlight (Spry et al., 1997), Acupan (Cooke and McPhail, 2001), SaÌcaÌrĂźmb (Ciobanu...2 = sylvanite from stage III (CM13/170m), 3 = calaverite from stage III (CM23/130m), 4 = krennerite from...detection limit, CM = transverses drifts used at the mine 1Te + Se = 2 9Au + Ag + Bi = 1 2Te + Se + S = 1...with minor tellurides, i.e., petzite (Ag3AuTe2), calaverite (AuTe2), altaite (PbTe), and hessite (Ag2Te)...assemblages, containing krennerite, sylvanite, calaverite, and traces of native gold (Figs. 5, 6E-H), are |  | | Journal (article/letter/editorial) | | tellurium, hessite, stutzite, petzite, sylvanite, calaverite, tellurobismuthite, tetradymite, Seâbearing tetradymite...petzite, sylvanite and hessite are followed by calaverite, coloradoite, tellurobismuthite, tellurantimony...such as Teine mine, Sapporo; Toyoha mine, Sapporo; Todoroki mine, Yoichi; Chitose mine, Chitose; and...and Koryu mine, Ishikari. Previous studies reported more than twenty mines in the southwestern Hokkaido...Fig. 1). The geology of the southwestern Hokkaido region in relation to mineralization, has been described |  | Voudouris, P. C., Melfos, V., Spry, P. G., Kartal, T., Schleicher, H., Moritz, R., Ortelli, M. (2013) THE PAGONI RACHI/KIRKI Cu-Mo Re Au DEPOSIT, NORTHERN GREECE: MINERALOGICAL AND FLUID INCLUSION CONSTRAINTS ON THE EVOLUTION OF A TELESCOPED PORPHYRY-EPITHERMAL SYSTEM. The Canadian Mineralogist, 51 (2) 253-284 doi:10.3749/canmin.51.2.253 | Journal (article/letter/editorial) | | area may represent a new Au-Re-Te metallogenetic province. Keywords: Porphyry, epithermal, vapor, hypersaline...and epithermal Cu-Au deposits in northern Luzon, Philippines, La Famatina and Agua Rica, Argentina, and...for example, in the western Pacific and Chile at Acupan, Emperor, Porgera, Ladolam, and Faride (Sillitoe...convecting systems has been proposed (Sillitoe 1989). At Acupan, intermediate sulfidation epithermal veins crosscut...alkaline-type Cu-Au porphyry deposits, including Acupan, Philippines (Waters et al. 2011), Emperor, Fiji (Pals |  | Zhao, J., Brugger, J., Grundler, P. V., Xia, F., Chen, G., Pring, A. (2009) Mechanism and kinetics of a mineral transformation under hydrothermal conditions: Calaverite to metallic gold. American Mineralogist, 94 (11) 1541-1555 doi:10.2138/am.2009.3252 | Journal (article/letter/editorial) | | transformation under hydrothermal conditions: Calaverite to metallic gold Jing Zhao,1,2 JoĂ«l Brugger,2... Australia 1 aBstract The transformation of calaverite to gold under hydrothermal conditions was studied...all of the experimental conditions explored, calaverite transformed to various extents to metallic gold...as gold preserves the external dimensions of calaverite. The resulting elemental gold is porous; consisting...to the twinned calaverite grains. The transformation proceeds via a coupled calaverite dissolutionâgold |  | Keith, Manuel, Smith, Daniel J., Doyle, Keiran, Holwell, David A., Jenkin, Gawen R.T., Barry, Tiffany L., Becker, Joseph, Rampe, Jason (2020) Pyrite chemistry: A new window into Au-Te ore-forming processes in alkaline epithermal districts, Cripple Creek, Colorado. Geochimica et Cosmochimica Acta, 274. 172-191 doi:10.1016/j.gca.2020.01.056 | Journal (article/letter/editorial) | | (2) high-grade quartz-fluorite veins rich in calaverite (AuTe2), coloradoite (HgTe), petzite (Ag3AuTe2)...(2) Cresson (Ruby stockpile) and (3) the historic mine site of Vindicator Valley (Fig. 1). The sample set...five different telluride phases were identified: calaverite (AuTe2), coloradoite (HgTe), petzite (Ag3AuTe2)...quartz and fluorite gangue (Fig. 3, 6 and 7). Calaverite is by far the most abundant telluride phase in...example, altaite and coloradoite commonly surround calaverite, while native Au is attached to coloradoite (Fig |  | | Journal (article/letter/editorial) | | native gold and/or electrum, and as tellurides (calaverite, krennerite, sylvanite, and petzite). Similarly...structures dipping <45o) in the central part of the mine, Ahmad et al. (1987) estimated that one-third of...geochemical study of flatmakes in the central part of the mine (608W, 166N, and Prince William flatmakes, and the...tellurium and tellurides, sylvanite (AuAgTe4), calaverite (AuTe2), krennerite ((Au,Ag)Te2), empressite...gold-rich tellurides (sylvanite, krennerite, and calaverite) as grains in quartz and carbonate, as overgrowths |  | Yin, Chao, Liu, Jiajun, Carranza, Emmanuel John M., Zhai, Degao, Guo, Yuncheng (2019) Mineralogical constraints on the genesis of the Dahu quartz vein-style Au-Mo deposit, Xiaoqinling gold district, China: Implications for phase relationships and physicochemical conditions. Ore Geology Reviews, 113. 103107 doi:10.1016/j.oregeorev.2019.103107 | Journal (article/letter/editorial) | | vein-style gold-molybdenum deposit Xiaoqinling region Au-Ag-Te-Mo-Bi-S minerals Ore formation conditions...100,000 tons Mo, is situated in the Xiaoqinling region in the northernmost part of Qinling orogen in China...tellurobismuthite, and tetradymite, and to a minor extent calaverite, petzite, hessite, and stĂŒtzite. Some Bi-sulfosalt...Late Triassic. 1. Introduction The Xiaoqinling region is at the boundary between the Henan and Shanxi... b). It is Chinaâs second largest gold-bearing region, with gold reserves of > 380 tons. Most of the |  | Li, ShiâSheng, Li, Lin, Li, ShengâRong, Santosh, M., Yuan, MaoâWen, Zhi, ZeâYa, Wen, ZiâHao (2020) Physicochemical conditions governing the formation of gold deposits along the southern margin of the North China Craton: A case study from the Chen'er deposit. Geological Journal, 55 (8). 5812-5830 doi:10.1002/gj.3584 | Journal (article/letter/editorial) | | of the typical gold deposits in the Xiaoqinling region along the southern Institute of Scientific Research...Australia, Australia minerals are composed of calaverite, petzite, hessite, altaite, joseite; except for...2019b), particularly in the case of The Xiaoqinling region in the southern margin of the North China epithermal...Liu et al., 2018; an important gold producing region (Niu, Liu, & Zhang, 2018). In order Sillitoe,...ther- quartzâvein hosted gold deposits in this region, information on the modynamic data with the temperature |  | Bi, Shi-Jian, Li, Jian-Wei, Zhou, Mei-Fu, Li, Zhan-Ke (2011) Gold distribution in As-deficient pyrite and telluride mineralogy of the Yangzhaiyu gold deposit, Xiaoqinling district, southern North China craton. Mineralium Deposita, 46 (8) 925-941 doi:10.1007/s00126-011-0359-2 | Journal (article/letter/editorial) | | auriferous quartz veins, consisting mainly of petzite, calaverite, hessite, altaite, and tellurobismuthite. Native...(Shackleton et al. 2003), the Commoner Mine and Viceroy Mine in Zimbabwe (Twemlow 1984; OberthĂŒt and...Maldon gold deposit in the Central Victorian gold province, Australia (Ciobanu et al. 2010). These observations...profiles suggest that invisible gold occurs as calaverite, petzite, and hessite (eâh). Note that As is...including, with decreasing abundance, petzite, calaverite, hessite, tellurobismuthite, and altaite (Fig |  | | Journal (article/letter/editorial) | | stability of aqueous tellurium species, plus calaverite and Preface â Special Issue: Telluride and...magmatism around the Pacific Rim is the example of Acupan (Baguio District, Phillipines). The zonation trend...goldâtellurium-rich epithermal deposits in this region formed a focus for mining. A visit to the famous...Epithermal AuâAgâTe mineralization, Acupan, Baguio District, Philippines; numerical simulations of mineral...Calculated stability of aqueous tellurium species, calaverite, and hessite at elevated temperatures. Econ Geol |  | | Journal (article/letter/editorial) | | native elements, sulfosalts, and tellurides. Calaverite is intimately associated with various vanadiumbearing...aK ÂŒ 0.01), show that the stability fields of calaverite, roscoelite, and karelianite converge in pH-f...explain the common coexistence of roscoelite and calaverite in epithermal gold systems elsewhere. The presence...form of goldbearing tellurides, particularly calaverite, and either native gold or electrum. Although...intergrown with gold tellurides, in particular calaverite (Nickel, 1977; Nickel and Grey, 1982; Gatehouse |
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