 | Rosenberg, J. L., Spry, P. G., Jacobson, C. E., Vokes, F. M. (2000) The effects of sulfidation and oxidation during metamorphism on compositionally varied rocks adjacent to the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway. Mineralium Deposita, 35 (8) 714-726 doi:10.1007/s001260050274 | Journal (article/letter/editorial) | | varied rocks adjacent to the Bleikvassli Zn±Pb±(Cu) deposit, Nordland, Norway Received: 1 March 1998 / Accepted:...the metamorphosed Bleikvassli Zn±Pb±(Cu) volcanogenic massive sul®de deposit, Norway, are dependent upon...coexisting with biotite garnet. Rocks in the Bleikvassli deposit were hydrothermally enriched in zinc...that the sul®dation±oxidation halo around the Bleikvassli ore deposit is only meters in width contrasts...naturvitenskapelige Universitet, 7034 Trondheim, Norway eation of a sul®dation±oxidation halo bordering |  | Rosenberg, J. L., Spry, P. G., Jacobson, C. E., Cook, N. J., Vokes, F. M. (1998) Thermobarometry of the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway. Mineralium Deposita, 34 (1) 19-34 doi:10.1007/s001260050183 | Journal (article/letter/editorial) | | Vokes Thermobarometry of the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway Received: 18 June 1997 /.../ Accepted: 14 May 1998 Abstract The Bleikvassli massive sul®de ore deposit is hosted by Proterozoic...the garnet-biotite compositions observed at Bleikvassli are 584 °C 49 °C and 570 °C 40 °C. The application...undersùkelse, P.O. Boks 3006 Lade N-7002 Trondheim, Norway F.M. Vokes Institutt for Geologi og Bergteknikk...naturvitenskapelige Universitet, N-7034 Trondheim, Norway 5.0 kbar and 8.5 1.2 kbar, respectively. Pressures |  | Vakh, A. S., Avchenko, O. V., Goryachev, N. A., Gvozdev, V. I., Karabtsev, A. A., Vakh, E. A. (2017) Minerals of the Bournonite–Seligmannite Series in Ore of the Beresitovoe Deposit, Upper Amur Region, Russia. Geology of Ore Deposits, 59 (8) 738-744 doi:10.1134/s1075701517080104 | Journal (article/letter/editorial) | | tourmaline. Orthoclase, chlorite, biotite, anorthite, gahnite, titanite zircon, epidote, allanite, prehnite,...Molchanova and N.I. Ekimova. deposits: Bleikvassli in Norway (Cook et al., 1998); Rajpura–Dariba in India...Rajpura–Dariba, India (Besu et al., 1984); (3) Bleikvassli, Norway (Cook et al. 1998); (4) Osborne Lake, Canada...India (Besu et al., 1984) and at the Bleikvassli deposit in Norway (Cook et al., 1998). At these deposits...galena, chalcopyrite, and pyrrhotite. At the Bleikvassli deposit, they are represented by various sulfide |  | | Journal (article/letter/editorial) | | Minerals of Norway - the (almost) complete inventory Gunnar Raade Preamble A monographic survey of the...the minerals of Norway (Norges Mineraler) was published by Neumann (1985), covering all minerals recorded...and synonyms. A large number of minerals new to Norway have been recorded since the book appeared. The...attempt to list all accepted mineral species from Norway, including those from Neumann (1985) and later...& Nickel 2001). Names of minerals discovered in Norway after the edition of Neumann's monograph are in |  | Vakh, A. S., Avchenko, O. V., Gvozdev, V. I., Goryachev, N. A., Karabtsov, A. A., Vakh, E. A. (2019) Minerals of the Pb–As–Sb–S and Cu–Pb–As–Sb–S Systems in Ores of the Berezitovoe Gold-Polymetallic Deposit, Upper Amur Region, Russia. Geology of Ore Deposits, 61 (3) 256-273 doi:10.1134/s1075701519020065 | Journal (article/letter/editorial) | | tourmaline. In addition to minor silicate minerals, gahnite (Vakh and Sapin, 1982), grothite (Vakh et al.,... 2011); (3) Bleikvassli Zn–Pb–(Cu) deposit, Norway (Cook et al., 1998); (4) Pollone Mine Pb–Zn prospect...Burnham, 1976), (c) tsugaruite from the Yunosawa mine, Japan, standard 00-051-1568 (Shimizu et al., 1998)...India (Besu et al., 1984); (3) Bleikvassli Zn–Pb–(Cu) deposit, Norway (Cook et al., 1998); (4) Osborne...minerals are abundant in the Pb–Zn ores of Bleikvassli, Norway (Cook et al., 1998), Rajpura Dariba, India |  | | Journal (article/letter/editorial) | | Garnet-gahnite-staurolite relations 105 N. Jb. Miner. Abh. 2007, Vol. 184/1, p. 105–116, Stuttgart...Schweizerbart’sche Verlagsbuchhandlung 2007 Garnet-gahnite-staurolite relations and occurrence of ecandrewsite...figures and 3 tables Abstract: The origin of gahnite and its relationship with coexisting porphyroblasts...sulfide occurrence, Betul Belt, central India. Gahnite and zincian staurolite are the product of desulfidation...compositions of coexisting zincian ilmenite and gahnite suggest that these two minerals did not form in |  | | Journal (article/letter/editorial) | | Artikkelserien: Contributions to the Mineralogy of Norway Sammenstilt av Alf Olav Larsen "This new series...series "Contributions to the Mineralogy of Norway" is introduced as an attempt to make the future literature...løpenummer slik: Contributions to the Mineralogy of Norway, No. xx. Dette er anført foran hver referanse nedenfor...SÆBØ, P. C. (1959): Bastnäsite, a new mineral for Norway. Norsk Geologisk Tidsskrift 39, 237-247. 3. NEUMANN...SVERDRUP, T. L. (1959): Bavenite from Boksjøen mineral mine, near Aspedammen in the county of Østfold. Norsk |  | Zhang, Yajing, Sun, Fengyue, Li, Bile, Huo, Liang, Ma, Fang (2014) Ore textures and remobilization mechanisms of the Hongtoushan copper–zinc deposit, Liaoning, China. Ore Geology Reviews, 57. 78-86 doi:10.1016/j.oregeorev.2013.09.006 | Journal (article/letter/editorial) | | further remobilization, new minerals, such as gahnite and actinolite, were formed. In this process, the... plagioclase, and biotite, with less biotite, gahnite, cordierite, anthophyllite, muscovite, actinolite...Some biotite grains are replaced by actinolite, gahnite, and clinozoisite. These silicate minerals generally...biotite gneiss. Previous studies have reported gahnite in metamorphosed massive sulfide deposits (Castroviejo...Zaleski et al., 1991). It is generally agreed that gahnite has potential as an exploration indicator for |  | | Journal (article/letter/editorial) | | PP. 175-177 Gahnite in an Archaean iron-formation, West Greenland THE zinc spine/ gahnite has been discovered...pyrite, pyrrhotite, chalcopyrite, molybdenite, and gahnite, locally with very small amounts of biotite, hornblende...pyrrhotite, chalcopyrite, molybdenite, ilmenite, and gahnite occur. The Malene metasediments are thought to...submarine exhalative origin (Appel, 1983). The gahnite, which in some thin layers within the 176 i...2. FIG. 1 (left). Magnetite 'dust' in euhedra| gahnite (G) crystal. Black is magnetite. Plane polarized |  | | Journal (article/letter/editorial) | | SULFIDE OCCURRENCES, COLORADO: A RE-EVALUATION OF GAHNITE COMPOSITION AS A GUIDE IN EXPLORATION ADRIANA HEIMANN...metamorphosed massive-sulfide deposits. Keywords: gahnite, exploration guide, massive sulfides, magnesium...métamorphisés. (Traduit par la Rédaction) Keywords: gahnite, guide en exploration minérale, sulfures massifs...Zn, Fe, and Mg in the tetrahedral site, whereas gahnite, hercynite, and spinel refer to zinc-bearing spinels...sapphirine and corundum in the Wet Mountains. Gahnite was reported in the Sedalia, Turret, Independence |  | | Journal (article/letter/editorial) | | Broken Hill, Australia (Lawrence 1967) and Bleikvassli, Norway (Vokes 1971). In addition, S-poor polymetallic...never found in the main gneiss. 9. The quartz–gahnite rock may cut the garnetite and garnet quartzite...– sphalerite at the margin of dikes in the Geco mine (Mookherjee & Dutta 1970) suggests that there are...Ag-dominant sulfosalts are described from the Pinnacles mine at Broken Hill, Australia (McQueen 1984), which...Realgar and native Bi are reported from Sulitjelma, Norway (Cook 1996). Both of these phases would have been |  | Griffin, William L., Slack, John F., Ramsden, Anthony R., Win, Tin Tin, Ryan, Chris G. (1996) Trace elements in tourmalines from massive sulfides deposits and tourmalinites; geochemical controls and exploration applications. Economic Geology, 91 (4) 657-675 doi:10.2113/gsecongeo.91.4.657 | Journal (article/letter/editorial) | | recrystallized duringregional (and from the Ore Knob mine (North Carolina) and the Prieska in onecasecontact)...onecasecontact) metamorphism, whichtypically hasde- mine(SouthAfrica)mayalsobe premetamorphie, because velopedcoarse...minorchalcopyrite andquartz,andtracesphalerite, from Elizabeth mine,Vermont; CP-16,coarse crystals, 1-7 cmlong,withinmatrixof...dolomite, andminorpyrrhotite andchalcopyrite, fromEly mine, Vermont; JS-79N-3, prismatic crystals <1 cmlong...andsparse pyrrhotite andchalcopyrite, fromthe Bleikvassli mine, Norway; KC-2505,prismatic crystals, <0.5 cmlong |  | | Journal (article/letter/editorial) | | State University, Blacksburg, Virginia, U.S.A. Gahnite in the Metamorphosed Stratiform Massive Sulfide...1985; accepted February 12, I986 Summary Ferroan-gahnite, (Zn,Fe)Al~O4, is a common accessory mineral found...ore bodies of the Mineral District, Virginia. Gahnite is present throughout the mineralized zones that...displaying not well-defined distribution pattern, gahnite is especially abundant at the margins of the mineralized...but all lie within the range of 68 to 88 tool.% gahnite (ZnA12O4), 8 to 25 tool.% hercynite (FeA12O4), |  | | Journal (article/letter/editorial) | | pp. 100–112. MINERALS AND MINERAL PARAGENESES Gahnite in Rare-Metal Metasomatic Rocks of the Verkhneurmiysky...10, 2016 Abstract⎯A new finding of Zn-spinel (gahnite) in biotite metasomatic rock of the Verkhneurmiysky...this paper, including the chemical composition of gahnite, its paragenesis, and place in the regional evolution...evolution history of hydrothermal processes. Gahnite is commonly localized in biotite–microcline metasomatic...granite massif. Gahnite from rare-metal ore occurrences belongs to the hercynite–gahnite–franklinite isomorphic |  | Faulstich, Fabiano Richard Leite, Ávila, Ciro Alexandre, Neumann, Reiner, Silveira, Viktor S.L., Callegario, Levi S. (2016) Gahnite From the São João Del Rei Pegmatitic Province, Minas Gerais, Brazil: Chemical Composition and Genetic Implications. The Canadian Mineralogist, 54 (6) 1385-1402 doi:10.3749/canmin.1500091 | Journal (article/letter/editorial) | | 1385-1402 (2016) DOI: 10.3749/canmin.1500091 GAHNITE FROM THE SÃO JOÃO DEL REI PEGMATITIC PROVINCE...plutonism in the Mineiro Belt. A selected group of gahnite crystals from several pegmatite bodies hosted in...exclusively on the gahnite–hercynite axis, and fall into the granitic pegmatite field in the gahnite–spinel–hercynite...gahnite–spinel–hercynite ternary diagram. The composition of gahnite varies depending on the country rock the pegmatite...emplacement of these pegmatitic bodies. Keywords: gahnite, São João del Rei Pegmatitic Province, pegmatite |  | Pollock, Meaghan V., Spry, Paul G., Tott, Katherine A., Koenig, Alan, Both, Ross A., Ogierman, Joseph (2018) The origin of the sediment-hosted Kanmantoo Cu-Au deposit, South Australia: Mineralogical considerations. Ore Geology Reviews, 95. 94-117 doi:10.1016/j.oregeorev.2018.02.017 | Journal (article/letter/editorial) | | types (e.g., apatite, Belousova et al., 2002; gahnite, 94 O’Brien et al. 2015a, b; magnetite, Dupuis...spessartine (Al, Mn), pyrope (Si, Mg), K-feldspar (K), gahnite (Zn, Al), tugtupite (Cl), and apatite 179 (F)...plagioclase rock, 214 banded iron formation), gahnite-bearing mica schist, pyritic schist, and calc-silicate...(1999) in QMS and GABS within 3 km of the Kanmantoo mine (Fig. 4H, I). The 247 most prominent exhalative...the banded iron 254 formation is an outcrop of gahnite-bearing muscovite schist. Other exhalative rocks |  | | Journal (article/letter/editorial) | | metamorphism. The staurolite, which probably grew from gahnite, cookeite, kaolinite/pyrophyllite, diaspore, and...conditions, variably replaced by bluish cobaltoan gahnite (XZn > 0.82), white Na-Ca-Li mica, Ni-rich chlorite...regions, white micas are present in minor amounts. Gahnite and zincohögbomite occur sporadically. At the thin...paragonite, and tourmaline. More rarely, inclusions of gahnite, Fe-Mn (hydrox)oxide, FeCo-Ni-sulfide, monazite...been found. Textural observations indicate that gahnite played a complex role in the petrogenetic evolution |  | | Journal (article/letter/editorial) | | -- still at granulite grade. Tectonic History of Mine Area The Willyama Complex comprises mainly garn...biotite-muscovite schists, quartzmagnetite and quartz-gahnite horizons. Foliation pattern, mineral composition...reach a maximum within and thence to the SE of the mine area. Metamorphic temperatures of 750 ° to 800 °C...(orthopyroxene isograd) are postulated for rocks of the mine area. Total pressure of 5 to 10 Kb, partly due to...shear zones these 1 New Broken Hill Consolidated Mine. 215 parapegmatites are converted to a "parapegmarite |  | | Journal (article/letter/editorial) | | te-sericite, discussed above, (ii) staurolite-gahnite; where the two occurin association,gabhireis commonlypartly...commonlypartly or completelyenclosedin staurolite,(iii) gahnite-sericite; where no sericitizationhas affectedthe...garnet-quartz-biotite assemblage, with smallamounts of gahnite,(ii) deformation leadingto thedevelopment of transecting...presenceof gahnite occurring adjacent to sulfidebands,e.g., garnet-biotite-quartz-gahnite bandsalternatingwith...three directionsparallelto the basalcleavage. Gahnite.--Gahniteis pale green, with refractive indices |  | | Journal (article/letter/editorial) | | in Mg, representing in fact binary mixtures of gahnite and hereynite. The zinc spinels associated with...quartzose crystalline schists, are high in the gahnite molecule. This is evidently due to the incompatibility...dieser Pegmatite 102 D. N~mee : sind fast reine Gahnite (der Gahnit von Margikov enth~lt 38,6% ZnO, derjenige...(Zupaaovice, SmrSek, Cetoraz; Gierzyn, Schlesien; Bleikvassli, Norwegen; Falun, Schweden), Ca-Skarne (Urn1... das ein eharakteristisehes Spurenelement der Gahnite aus den B6hmisehen und Mahrisehen Pegmatiten ist |  | Conn, C. Dakota, Spry, Paul G., Layton-Matthews, Dan, Voinot, Alexandre, Koenig, Alan (2019) The effects of amphibolite facies metamorphism on the trace element composition of pyrite and pyrrhotite in the Cambrian Nairne Pyrite Member, Kanmantoo Group, South Australia. Ore Geology Reviews, 114. 103128 doi:10.1016/j.oregeorev.2019.103128 | Journal (article/letter/editorial) | | products associated with some pyrite at the Brukunga mine, while Skwarnecki et al. (2002) identified barite...of pyrite in the Nairne Pyriten Member, Brukunga mine, drill hole Nairne Pyrite 13, 205.0 m. b. Thin laminae...and 1.78% Pb in pyritic rocks from the Brukunga mine. 4.3. Mount Torrens Pb-Zn-Ag prospect The Mt. Torrens...from the Nairne Pyrite Member at the Brukunga Fe-S mine and the Mt. Torrens Pb-Zn prospect. a. Subhedral...boulangerite, cobaltian arsenopyrite, magnetite, gahnite, and galenobismutite (Spry, 1976; Gum, 1998; Toteff |  | | Book (edition) | | contact twins spinel law Anhydrite Galaxite yes Gahnite penetration twins α-Quartz Silica, amorphous... Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre...of cuprite (bluish grey); North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co.,...vein in jasper (red internal reflections); Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey...argentite reaction rim (greenish grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL |  | | Journal (issue) | | Franklinfurnaceite Pyroxmangite & rhodonite Franklinite-gahnite exsolution intergrowths Haidingerite, magnesium-chlorophoenicite...to 2 meters at the north end. On the maps in the mine office the stope's southern boundary was at 1010...pyrochroite/ kraisslite veinlets. Elsewhere in the mine, the blue sphalerite was found in crystals up to...Branch of the West Limb in the middle levels of the mine was an interesting calcsilicate body in the hanging...microcline or potassium feldspar, zincian micas, gahnite, black willemite, and along the contact between |  | | Book (edition) | | Hercynite IV/B.01-20 602 Galaxite IV/B.01-30 604 Gahnite IV/B.01-40 606 Magnetite IV/B.02-20 608 Jacobsite...(yellowish white), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(greenish grey), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(bluish grey shades), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // 8 Gold A ...sample - photo A), dolomite (dark grey); Harstigen Mine, Pajsberg, Filipstad, Värmland, Sweden [j]; Nic |  | | Catalog/List | | matrix hl !3 5 AGARDITE (Ce) r ...fe green micro's Mine, Wolf;_n, West Germany) 'h ins f.3. 60 6 ALBITE...Omphacite. An attractive Eclogite rock.(West Coast of Norway) lx2 90p 2x2 ll,80 2x4 t3.70 218 ALMAND!NE with...microcline Felspar) Blue green cleavable mass (Norway) lx2 60p 2x2 !1.20 16 AMBLYGDNITE pure grEy cl2avablE...black masses sornewith felspar.(l:Juer Vesteroya Norway) 1x1 f.1.80 1x2 !3.60 2x2 !7,00 1X1 80;:i 14...garnet, rich brown masses in matrix. (Grua, Oppland, Norway) 1x2 70p 2x2 ll.40 22 ANGLESITE c:c:trl'. grL_;y |
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