 | Spry, P. G., Foster, F., Truckle, J. S., Chadwick, T. H. (1997) The mineralogy of the Golden Sunlight gold-silver telluride deposit, Whitehall, Montana, U.S.A. Mineralogy and Petrology, 59 (3) 143-164 doi:10.1007/bf01161857 | Journal (article/letter/editorial) | | contributions from the Proterozoic host rocks. 144 R G. Spry et al. Zusammenfassung Mineralogie der Golden...Proterozoic (Foster and Childs, 1993). Chadwick (1992) and Spry et al. (1996) showed that the auriferous breccia...by Porter and Ripley (1985), Paredes (1994), and Spry et al. (1996) who evaluated paragenetic, stable...and manganese (rhodochrosite and pyrolusite) zone 146 R G. Spry et al. The present investigation...and stable isotope studies of Paredes (1994) and Spry et al. (1996). Although Cretaceous porphyry molybdenum |  | | Journal (article/letter/editorial) | | with its representation of mining tools clearly proclaim Montana’s mining origins. Montana’s production...published describing the occurrence, collecting, mining, and cutting of the two state gemstones. Figure...2. Granville Stuart established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal |  | | Journal (article/letter/editorial) | | Pb–Zn–Ag mines of Lavrion is not obvious, underground mining at Grammatiko has revealed geological and structural...the Grammatiko mine are hematite, goethite, and pyrolusite. Veins of calcite cross-cutting the ore are common...72.7 67.3 Mil3 Hollandite Mil4 Barite Mil5 Pyrolusite n.d 12.1 n.d 58.4 14.1 n.d n.d 4.5 n.d n.d n...(goeth) (3e), pyrolusite (pyr) 3d), and calcite cal) (3c–g). goethite (goeth) (e), pyrolusite (pyr) (d),...fill open spaces, are fine-grained Mn-oxide (pyrolusite Mn-rich nodules of Mn-magnetite and hematite |  | | Journal (article/letter/editorial) | | gold-silver telluride deposit, Montana, U.S.A. P. G. SPRY AND S. E. THIEBEN Department of Geological and Atmospheric...I, Iowa State University, Ames, Iowa 500113212, USA ABSTR ACT The gold balance in an ore deposit where...extensive Great Falls Tectonic Zone (Thieben and Spry, 1995). Ore mined to date and remaining reserves...by Porter and Ripley (1985), Paredes (1994), and Spry et al. (1996) * E-mail: pgspry@iastate.edu # 2000...was recently completed by Spry et al. (1997). Porter and Ripley (1985) and Spry et al. (1997) identi®ed |  | | Journal (article/letter/editorial) | | gold deposit, Vatukoula, Fiji D. W. Pals and P. G. Spry Department of Geological and Atmospheric Sciences...Cripple Creek, Colorado, 286 D. W. Pals and P. G. Spry Thompson et al., 1985) to calc-alkaline affinity...amounts. The average gold grade since commencement of mining in the early 1930s has been about 9 g=t but with...(1987). FM Flatmake 288 D. W. Pals and P. G. Spry Fig. 3. Plan-view of the ore bodies at the Emperor...pyrite, roscoelite, and 290 D. W. Pals and P. G. Spry wall-rock fragments on the margins of generally |  | | Book | | Determination of Common Opaque Minerals Paul G. Spry and Brian L. Gedlinske ECONOMIC GEOLOGY Tables...Determination of Common Opaque Minerals PAUL G. SPRY AND BRIAN L. GEDLINSKE Department of Earth Sciences...braunite, hausmannite, jacobsite, psilomelane, and pyrolusite. Platinum minerals: braggite, cooperite, platinum...and S. I. Kalogeropoulosfor discussions with P. G. Spry which led to the idea and incentive to prepare the...Concentric and botryoidal textures common. 2 SPRY AND GEDLINSKE GRCl.JP NUMBER MINERAL Famatinite |  | | Journal (article/letter/editorial) | | Fe-Mn-mineralization. 2. Geological Outline The Lavrion district (Figure 1) belongs to the Attic-Cycladic Crystalline...Simplified geological map theLavrion Lavrion ore ore district after [1,6,22]), showing the the FigureFigure...FigureFigure 1. Simplified geological map ofofthe district(modified (modified after [1,6,22]), showing location of... Simplified geological map of the Lavrion ore district (modified after [1,6,22]), showing the consisting...mostly of bacteriomophic Mn-Fe hydroxides and pyrolusite (Figures 2–5). location of the studied Fe-Mn-mineralization |  | | Journal (article/letter/editorial) | | (Schouten, 1962; Uytenbogaardt and Burke, 1971; Spry and Gedlinske, 1987) that allow a reasonable approximation...Uytenbogaardt and Burke, 1971; Harvey and Atkin, 1979; Spry and Gedlinske, 1987; Glass and Voncken, 2010). This...(Schouten, 1962; Uytenbogaardt and Burke, 1971; Spry and Gedlinske, 1987) are based on the observer’s...compared with a tree diagram taken as a reference (Spry and Gedlinske, 1987), as it is widely used for such...and rock-forming minerals. Concretely, data from Spry and Gedlinske (1987) has been employed for a comparison |  | | Journal (article/letter/editorial) | | University, 101 Graham Building, Greenville, NC 27858, USA MIGUEL A. GALLISKI IANIGLA, CCT MENDOZA-CONICET...the pegmatites of the Comechingones pegmatite district. Chemical variation within gahnite crystals is...veins, granitoids, and granitic pegmatites (e.g., Spry & Scott 1986a, Heimann et al. 2005, O’Brien et al...these pegmatites at the scale of the pegmatite district, single pegmatite bodies, and within individual...in Table 1. Conlara Pegmatite District The Conlara pegmatite district is located in the northern portion |  | | Journal (article/letter/editorial) | | ferromanganese precipitates (e.g., Lottermoser, 1988; Spry et al., 2007). Sedimentary REE patterns of ferromanganese...anomaly that characterises oxic sea water (e.g., Spry et al., 2007; Slack et al., 2009; Heimann et al...rocks in Broken Hill-type deposits in Australia (Spry et al., 2007; Heimann et al., 2011). Their REE data...(Brt). The latter is partially replaced by a pyrolusite-like mineral (white). the LA-ICP-MS measurements...Mn(II)Mn(III)6[SiO4]O8, which is partially replaced by a pyrolusite-like mineral. The latter, which also occurs as |  | | Journal (article/letter/editorial) | | FRANKMELCHER Institute of Geological Sciences, Mining University, A-8700 Leoben, Austria Abstract Early...deposits of both, Broken Hill (Pb-Zn-Ag), Australia (Spry and Wonder, 1989), and Gamsberg (Zn-Pb), South Africa...Manganese minerals are present as coarse-grained pyrolusite and fine-grained aggregates of greyish minerals...indicate that they do not replace silicate minerals. Pyrolusite generally postdates cryptomelane. The compositions...minerals Cryptomelane Pyrolusite Roman6chite Goethite Lepidocrocite Cryptomelane Pyrolusite Goethite General |  | Voudouris, P., Mavrogonatos, C., Spry, P.G., Baker, T., Melfos, V., Klemd, R., Haase, K., Repstock, A., Djiba, A., Bismayer, U., Tarantola, A., Scheffer, C., Moritz, R., Kouzmanov, K., Alfieris, D., Papavassiliou, K., Schaarschmidt, A., Galanopoulos, E., Galanos, E., Kołodziejczyk, J., Stergiou, C., Melfou, M. (2019) Porphyry and epithermal deposits in Greece: An overview, new discoveries, and mineralogical constraints on their genesis. Ore Geology Reviews, 107. 654-691 doi:10.1016/j.oregeorev.2019.03.019 | Journal (article/letter/editorial) | | their genesis P. Voudouris, C. Mavrogonatos, P.G. Spry, T. Baker, V. Melfos, R. Klemd, K. Haase, A. Repstock...article as: P. Voudouris, C. Mavrogonatos, P.G. Spry, T. Baker, V. Melfos, R. Klemd, K. Haase, A. Repstock...on their genesis Voudouris P1, Mavrogonatos C1, Spry PG2, Baker T3, Melfos V4, Klemd R5, Haase K5, Repstock...Sciences, Iowa State University, Ames IA 50011-1027, USA; 2 pgspry@iastate.edu Eldorado Gold Corporation...sericitic-altered Miocene granodiorite stock in the Lavrion district. Bonanza grade Au- and/or Ag-rich veins with epithermal |  | Giouri, Katerina, Melfos, Vasilios, Papadopoulou, Lamprini, Vavelidis, Michael, Alifragkis, Dimitrios (2018) Selected Metal Content and Binding Behaviour in Riverbed Sediments of the Kavala–Philippi Area (Northern Greece) Geosciences, 8 (5) 187 doi:10.3390/geosciences8050187 | Journal (article/letter/editorial) | | minerals such as chalcopyrite, pyrite, goethite, pyrolusite and sphalerite, may contribute to the concentrations...to anthropogenic ones (agriculture, irrigation, mining and industrial activities, and waste discharge)...metals, and anthropogenic activities like surface mining and agriculture take place in the region. The mutual...siderite, arseniosiderite, scorodite, jarosite, pyrolusite, covellite, chalcocite, malachite, smithsonite...manganosite, cryptomelane, todorocite, nsutite [40–44]. pyrolusite, manganite, manganosite, cryptomelane, todorocite |  | | Journal (article/letter/editorial) | | Maney for the Institute of Materials, Minerals and Mining. Keywords: Spessartine–tourmaline-bearing itabirite...(i.e. haematite after magnetite), goethite and pyrolusite, with associated braunite, rancieite, nsutite...to euhedral porphyroblasts in: (i) a nsutite–pyrolusite matrix with bands of magnetite extensively oxidised...deposits?’ Geology, 1998, 26, 439–442. 34. P. G. SPRY, J. M. PETER and J. F. SLACK: ‘Meta-exhalites as...1–312, 1985, Oxford, Blackwell. J. D. WONDER, P. G. SPRY and K. E. WINDOM: ‘Geochemistry and origin of manganese-rich |  | | Journal (article/letter/editorial) | | concentrated into discrete areas (e.g. Mt Cooke–Utah–Mt Rove, Bee Hill, Skull Springs and the Ripon Hills...the basin (e.g. Mt Cooke, Ant Hill, Sunday Hill, Utah–Mt Rove, Davis River and Ripon Hills; Figure 1)...account of the deposits was by de la Hunty (1963). Mining at Woodie Woodie mine by Consolidated Minerals...The dominant Mn minerals at Woodie Woodie are pyrolusite, braunite, cryptomelane, jianshuiite and hausmannite...et al., 2013). Supergene phases (particularly pyrolusite and cryptomelane) dominate the ore assemblage |  | Santos, Felipe Holanda dos, Amaral, Wagner da Silva, Konhauser, Kurt, Martins, Douglas Teixeira, Castro, Marco Paulo de, Queiroga, Glaucia Nascimento, Chi Fru, Ernest, Andersen, Morten B. (2021) Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil. Ore Geology Reviews, 137. 104283pp. doi:10.1016/j.oregeorev.2021.104283 | Journal (article/letter/editorial) | | The oxidized manganese ore consists mainly of pyrolusite, manganese-oxyhydroxide and spessartine. The...ganese oxides cryptomelane (K[Mn4+, Mn2+]8O16) and pyrolusite (Mn4+O2) (Dasgupta, 1997; Johnson et al., 2016)...Libra Ligas do Brazil in 2003. However, operational mining activities in the Lagoa do Riacho mine are relatively...layers is recorded by massive crystallization with pyrolusite, manganite (Mn3+O[OH]), cryptomelane, and todorokite...mm- to cmthick, well-developed, grayish black, pyrolusite-graphite bands inter leaved with pale-brownish |  | | Journal (article/letter/editorial) | | 581; spectrochemical determination of, 790; Amelia County, anal., 796 ALIAS (L. J.), see DE CASTRO(A. HoYos)...171 O'NEAL (R. A. H.), Derbyshire lead and lead mining, a bibliography, 528 OSTROUMOV(E. A.), trans. PATERSON...Deltaite, a mixture, 260 Diabantite, Connecticut, Utah, & Virginia, anal., D.T.A., 404 Diamond, precipitates...LOPES-VIEIRA (A.), Transformation of grouMte into pyrolusite, 1024 Limestone, Coahuila, contact metamorphism...strain in, 237 Pmnpellyite, Wa,le,s', opt., 1093 Pyrolusite, Mysore, 170 Pyromorphite, (Jumberland, possibly |  | Cabral, A. R., Lehmann, B., Sattler, C. D., Pires, F. R. M., Kaneko, K. (2002) Hg–Tl-bearing manganese oxide from Conta História manganese deposit, Quadrilátero Ferrifero, Minas Gerais, Brazil. Applied Earth Science, 111 (2) 123-127 doi:10.1179/aes.2002.111.2.123 | Journal (article/letter/editorial) | | the Quadrilátero Ferrífero, the world-class iron district of Minas Gerais, Brazil, numerous manganese oxide...Manuscript first received by the Institution of Mining and Metallurgy on 10 June, 2002; revised manuscript...2002. © The Institute of Materials, Minerals and Mining 2002. under amphibolite-facies conditions. The...and Fe2O3, respectively. phase is replaced by pyrolusite (Fig. 3(c)). Relics of a fibrous manganese aluminosilicate...completely leached fibrous phase, now replaced by pyrolusite, p. Fractured crystals of tourmaline, t, as well |  | | Journal (article/letter/editorial) | | by INAA at the U.S. Geological Survey of Reston (USA). Petrography of the rocks containing braunite Table...e.g. Reinecke et al., 1985; Coombs et al., 1985; Spry, 1990). Concerning the Mn=Fe ratio, the highest...bixbyite, could appear early from deoxidation of pyrolusite in the presence of quartz. In the rocks studied...manganese deposits of the Penganga Beds, Adilabad District, Andhra Pradesh, India. VI IAGOD Symposium, Tbilisi...Waziristan, Pakistan. Mineral Deposita 34: 697±704 Spry PG (1990) Geochemistry and origin of coticules (spessartine±quartz |  | | Journal (article/letter/editorial) | | the La Azul fluorspar deposit in the Taxco mining district, Mexico Received: 22 January 2004 / Accepted:...fluorite of the La Azul fluorspar deposit, Taxco mining district, Mexico. Ages of ten U-rich (4–94 lg/g) samples...fluorite samples from the La Azul deposit, Taxco mining district, Mexico. The results indicate the possibility...eastern limit of the famous Ag– Pb–Zn Taxco mining district (Fig. 1), which is one of the oldest localities...amounts of calcite and quartz, and minor barite, pyrolusite, pyrite and uraninite. The primary fluorite is |  | | Book (edition) | | OX5 1 GB, UK 225 Wyman Street, Waltham, MA 02451, USA Copyright © 2015, 2008 Elsevier B.V. All rights reserved...orangebrown distinctive brown to blue grey Mineral Pyrolusite Rasvumite Rickardite light yellow, brown, brilliant...grey); Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Sachsen, Germany (sample: Seifert);...grey); New Bullfrog Mine, Bullfrog District, Nye Co., Nevada, USA (sample: Witzke); PPL If marked in...placers Kaietur Falls, Potaro River, Kangaruma District, Potaro-Siparuni Region, Guyana Chalcopyrite, |  | | Book | | Oxon 0X14 4RN 711 Third Avenue, New York, NY 10017, USA Routledge is an im print o f the Taylor & Francis...QE390.I53 1989 552 \0 6 88-3015 ISBN 0-470-21072-9 (USA only) CONTENTS Preface and Acknowledgements ix...Platinum Proustite Psilomelane Pyrargyrite Pyrite Pyrolusite Pyrrhotite Rutile Scheelite Silver Sphalerite...the years from teaching students in the UK and the USA and from the feedback they have provided. Professor...whereas students at universities, technical colleges, mining schools, museums and similar institutions normally |  | Kevrekidis, Elias, Seymour, Karen St., Tombros, Stylianos, Zhai, Degao, Liu, Jiajun, Zouzias, Dimitrios (2015) The Agios Georgios argentiferous galena deposit on Antiparos Island, Cyclades, Hellas and its relationship to the Paros leucogranite. Neues Jahrbuch f??r Mineralogie - Abhandlungen: Journal of Mineralogy and Geoche, 192 (3) 239-261 doi:10.1127/njma/2015/0283 | Journal (article/letter/editorial) | | example of the S-type leuocogranites in the Cyclades. Mining activity in Paros was mostly associated with the...Isotope Research Laboratory, University of Indiana, USA. The remaining ten samples were also analyzed for...Chalcocite-Digenite Goethite Malachite Azurite Pyrolusite ▃▃▃▃▃▃▃▃▃ ▃▃▃▃▃▃ ▃ ▃ ▃ ▃▃ ▃▃▃▃ ▃▃▃ ▃▃▃▃ ▃ ▃▃▃▃...Mineralogy and Petrology 160: 719 –742. bonSAll, t. A., Spry, p. g., voudouriS, p. c., toMbroS, S. f., St. SeyMour...carbonate-replacement Pb-Zn-Ag mineralization in the Lavrion district, Attica, Greece: Fluid inclusion, stable isotope |  | Fornadel, Andrew P., Spry, Paul G., Melfos, Vasilios, Vavelidis, Michael, Voudouris, Panagiotis Ch. (2011) Is the Palea Kavala Bi–Te–Pb–Sb±Au district, northeastern Greece, an intrusion-related system?. Ore Geology Reviews, 39 (3) 119-133 doi:10.1016/j.oregeorev.2011.01.002 | Journal (article/letter/editorial) | | e o r ev Is the Palea Kavala Bi–Te–Pb–Sb ± Au district, northeastern Greece, an intrusion-related system...system? Andrew P. Fornadel a,⁎, Paul G. Spry a, Vasilios Melfos b, Michael Vavelidis b, Panagiotis Ch....inclusions. The presence of a zoned metallogenetic district centered on Bi–Te–Pb–Sb± Au mineralization within...considerable exploitation by both underground and surface mining techniques. The ancient mines, which have been...grades and tonnages of metals in the Palea Kavala district are unknown; however, between 1904 and 1914 20 |  | | Journal (article/letter/editorial) | | Experiments have been conductedonly on Reaction l0 by Spry and Scott (1982),but their abstractdoesnot contain...(1985)Low-temperatureheat capacitiesand entropies of MnO (pyrolusite), MnrOo (hausmanite), MnrO. (bixbyite). Journal...diopside-hedenbergite join. Journal of Geology, 74, 463-477. Spry, P.G., and Scott, S.D. (1982) Zircian spinels as...and the data of Katayama et al. (1982) for ZnO. Spry and Scott (1986) reported experiments and calculations |
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