| | Journal (article/letter/editorial) | RuO2 IN ISOFERROPLATINUM NUGGETS FROM FINNISH LAPLAND Pekka TUISKU§ Department of Geosciences, University...University of Oulu, FIN–90014 University of Oulu, Finland Abstract Rutile, ruthenian rutile and titanian...sluicing in the historical gold-rush area of Finnish Lapland. Analytical data suggest that an extensive solid-solution...overlying the migmatitic to enderbitic bedrock of the Lapland granulite belt. Keywords: rutile, ruthenium dioxide... laurite, isoferroplatinum, gold, nugget, Lapland, Finland. Introduction Oxides of the platinum-group | | Kojonen, K. K., McDonald, A. M., Stanley, C. J., Johanson, B. (2011) Törnroosite, Pd11As2Te2, a new mineral species related to isomertieite from Miessijoki, Finnish Lapland, Finland. The Canadian Mineralogist, 49 (6) 1643-1651 doi:10.3749/canmin.49.6.1643 | Journal (article/letter/editorial) | MIESSIJOKI, FINNISH LAPLAND, FINLAND Kari K. KOJONEN§ Geological Survey of Finland, P.O. Box 96, FIN–02150...FIN–02150, Finland Andrew M. McDONALD Department of Earth Sciences, Laurentian University, 935 Ramsey Lake...JOHANSON Geological Survey of Finland, P.O. Box 96, FIN–02150, Finland Abstract Törnroosite, ideally...River, Lemmenjoki area, Inari Commune, Finnish Lapland, Finland. It is cubic, space group Fd3m (#227), by...associated minerals include sperrylite, Pt–Fe alloy, cooperite, braggite, native Os–Ir–Ru alloy, irarsite, laurite | | Kojonen, K. K., Tarkian, M., Roberts, A. C., Törnroos, R., Heidrich, S. (2007) Miessiite, Pd11Te2Se2, a new mineral species from Miessijoki, Finnish Lapland, Finland. The Canadian Mineralogist, 45 (5) 1221-1227 doi:10.2113/gscanmin.45.5.1221 | Journal (article/letter/editorial) | MIESSIJOKI, FINNISH LAPLAND, FINLAND Kari K. KOJONEN§ Geological Survey of Finland, P.O. Box 96, Espoo...Espoo FIN–02150, Finland Mahmud TARKIAN Insitute of Mineralogy and Petrology, University of Hamburg, D–20146...64, University of Helsinki, FIN–00014 Helsinki, Finland Stefanie HEIDRICH Institute of Mineralogy and...river, Lemmenjoki area, Inari Commune, Finnish Lapland, Finland. Associated PGM and other heavy minerals include...include stillwaterite, isomertieite, mertieite-II, cooperite, braggite, kotulskite, vincentite, tantalite, | | | Report (issue) | Miessijoki River, Lemmenjoki area, Finnish Lapland, Finland. 2.182 (100), 2.376 (90), 1.544 (14), 1.862...Miessijoki River, Lemmenjoki area, Finnish Lapland, Finland; average of 10 electron microprobe analyses...complex. Association: Gold, platinum, sperrylite, cooperite, braggite, irarsite, laurite, isomertieite, mertieite...River, Lemmenjoki area, Inari Commune, Finnish Lapland, Finland. Name: Honors Professor Ragnar Törnroos (b...Helsinki, Finland, who first reported a mineral of similar composition at Finnish Lapland. Type Material: | | | Journal (article/letter/editorial) | alloys in nuggets from alluvial deposits in Finnish Lapland RAGNAR TC)RNROOS t and YRJC) VUORELAINEN 2 ~Geological...Stenkarlsviigen 1, SF-02150 Esbo (Finland) 2Matinkatu 28. SF-02230 Espoo (Finland) LITHOS T6rnroos, R. and...alloys in nuggets from alluvial deposits in Finnish Lapland. Lithos, 20: 491-500. 0 Alluvial nuggets of PGE...Cu; the natural minerals laurite for Ru and S, cooperite for S and pentlandite for Ni. The X-ray lines...idcntified in placer concentrates from Finnish Lapland ( 1) (2) (3) (4) (5) (6) (7) (8) (9) 10) 11 ) 12) | | | Report (issue) | Miessijoki river, Lemmenjoki area, Inari Commune, Finland. 2.197 (100), 2.395 (80), 1.271 (30), 1.875 (25)...Miessijoki river, Lemmenjoki area, Inari Commune, Finland; average electron microprobe analysis; corresponds...Association: Stillwaterite, isomertieite, mertieite-II, cooperite, braggite, kotulskite, vincentite, tantalite,...river, Lemmenjoki area, Inari Commune, Finnish Lapland, Finland. Name: After the locality, the Miessijoki...History, Geological Museum, University of Helsinki, Finland (D3004). References: (1) Kojonen, K.K., M. Tarkian | | | Journal (article/letter/editorial) | THE KEIVITSANSARVI Ni–Cu–PGE DEPOSIT, NORTHERN FINLAND FERNANDO GERVILLA§ Instituto Andaluz de Ciencias...KOJONEN Geological Survey of Finland, Betonimiehenkuja 4, FIN–02150 Espoo, Finland ABSTRACT The Keivitsansarvi...Keivitsansarvi deposit, in northern Finland, is a low-grade dissemination of Ni–Cu sulfides containing 1.3–26...palladian bismuthotellurides, Keivitsa intrusion, Finland. SOMMAIRE Le gisement de Keivitsansarvi, dans...Proterozoic layered intrusions in central Finnish Lapland and in Russian Karelia contain mineralized zones | | | Journal (article/letter/editorial) | Russia Geological Survey of Finland, P.O. Box 95, Espoo FIN 02151, Finland [Received 24 January 2017;...the Kaarreoja River, Inari commune, Finnish Lapland, Finland, was refined to R1 = 0.0222 (I) and 0.0228...received from Dr. Kari Kojonen, Geological Survey of Finland. They were collected from the black sands of gold...the Kaarreoja River, Inari commune, Finnish Lapland, Finland (68,65°N, 25,63°E). The most probable source...isoferroplatinum, native platinum, Pt-oxide, braggite, cooperite, vysotskite, isomertieite, mertieite-I, mertieite-II | | | Journal (article/letter/editorial) | mineralization includes 22 mineral species. PGE sulfides (cooperite–brag gite–vysotskite; laurite and erlichmanite...Lovnozero ore district in the central part of the Lapland Granulite Belt. The Pechenga–Allarechka Ni–Cu–PGE...dra–Varzuga; (3) Paleoproterozoic granulite belts: Ll, Lapland and KK, Kandalaksha–Kolvitsa; (4) mafic and ultramafic...the Volchetundra massif is given in Table 2. Cooperite, braggite, sperrylite and moncheite are the main...minerals (PGM). The Pt and Pd sulfides of the cooperite–braggite–vysotskite series are the most abundant | | Oberthur, T., Melcher, F., Gast, L., Wohrl, C., Lodziak, J. (2004) DETRITAL PLATINUM-GROUP MINERALS IN RIVERS DRAINING THE EASTERN BUSHVELD COMPLEX, SOUTH AFRICA. The Canadian Mineralogist, 42 (2) 563-582 doi:10.2113/gscanmin.42.2.563 | Journal (article/letter/editorial) | are the most common, followed by sperrylite, cooperite, braggite, isomertieite or mertieite I, stibiopalladinite...les plus communs; suivent ensuite sperrylite, cooperite, braggite, isomertieïte or mertieïte I, stibiopalladinite...assigned to native Pt or Pt–Fe alloy have a core of cooperite or braggite. This fact must be taken into consideration...by number of grains), the Pt and Pd sulfides cooperite and braggite (14.2%) and sperrylite (10.2%). The...observed in a single grain. The (Pt,Pd) sulfides cooperite and braggite are mainly present as splintered | | | Journal (article/letter/editorial) | wide array of other unusual minerals, including cooperite, laurite, kotulskite, merenskyite, iridium-osmium...Mineral Society. Sperrylite has been identified in Finland from sulfide deposits generally associated with...described from the Miessi and Sota Rivers in Finnish Lapland (Koivisto, Vuorelainen, and Sahama 1980). Sperrylite...Sahama. 1980. Alluvial sperrylite from Finish [sic] Lapland. Mineralogical Record I I :303-5. Mertie, J. B | | Naldrett, A J, Brownscombe, W, Herrington, R, Wilkinson, J, Berry, A, Coppard, J, Klatt, S, Kekana, S, Grobler, D, Phipps, M, Dunnett, T, Hadebe, D, Nielsen, S, Broughton, D, Kojonen., K K, Montjoie, R, van Rooyen, N, Reichhardt, F, Nex, P A M, Holwell, D A, Boyce, A J, Jones, A, Holwell, D A, Jones, R E, McDonald, I, Prichard, H M, Yudovskaya, M, Kinnaird, J A, Sobolev, A, Kuzmin, D, Wilson, A (2011) Abstracts. Applied Earth Science, 120 (4) 198-210 doi:10.1179/1743275812y.0000000015 | Journal (article/letter/editorial) | The Sakatti magmatic Ni–Cu–PGE deposit, northern Finland W. Brownscombe1,2, R. Herrington1, J. Wilkinson2...Exploration BV, Jäämerentie (PL38), Sodankylä 99601, Finland The Sakatti deposit is a significant new Ni–Cu–PGE...American, 2011). The deposit is located in Lapland, northern Finland, and is close to the low-grade Cu–Ni–PGE...ultramafic cumulate that sits within the Central Lapland Greenstone Belt (CLGB). The CLGB stratigraphy consists...Sodankylä region, Finland. The 8th Fennoscandian Exploration and Mining Conference, Levi, Finland, November, | | Fedortchouk, Y., LeBarge, W., Barkov, A. Y., Fedele, L., Bodnar, R. J., Martin, R. F. (2010) Platinum-group minerals from a placer deposit in Burwash Creek, Kluane area, Yukon Territory, Canada. The Canadian Mineralogist, 48 (3) 583-596 doi:10.3749/canmin.48.3.583 | Journal (article/letter/editorial) | solid-solution series, miassite (Rh,Pt,Pd)17S15, cooperite PtS, isoferroplatinum Pt3Fe (or Fe-rich platinum)...– kashinite Ir2S3, miassite (Rh,Pt,Pd)17S15, cooperite PtS, isoferroplatine Pt3Fe (ou bien platine riche...(in secondary electron images). Symbols: Co: cooperite, Mi: miassite, Va: vasilite, Bo: bowieite. PGM...including miassite and vasilite, and BR06–2 has cooperite and silicate inclusions (Fig. 2). The Inclusions...Rh17S15; Pd and Pt are minor (anal. 10, Table 3). Cooperite, PtS The EMP data suggest that a deviation from | | | Journal (article/letter/editorial) | Element Deposit, Portimo Layered Igneous Complex, Finland JENS CHR. Ø. ANDERSEN,†,* OSKAR A. R. THALHAMMER...below the Portimo Layered Igneous Complex, Finnish Lapland. It consists of a stockwork of massive Cu-FeNi... sperrylite, vysotskite-braggite, paolovite, cooperite, and isomertieite. The massive sulfide veins host...the Portimo Layered Igneous Complex, northern Finland (Iljina, 1994). The deposit was discovered during...the highest concentrations of PGE in northern Finland (Alapieti and Lahtinen, 2002). The PGE are associated | | | Journal (article/letter/editorial) | Kuolayarvinskaya (K); (3) Paleoproterozoic granulitic belts; Lapland (L), Kandalaksha-Kolvitsky (KK). (b) Scheme of...(а) Stillwater SJ Reef of Penikat intrusion, Finland 1000 Rock/primitive mantle Merensky Reef 100...(Grokhovskaya et al. 2000), SJ reef of Penikat intrustion, Finland (Alapieti and Lahtinen, 2002), and typical deposits...Platinum and palladium sulfides are represented by cooperite–braggite–vysotskite series, minerals of the GEOLOGY...deposit Ore zone 1 Minerals Ore zone 2 Samples Cooperite (Pt,Ni)S Braggite (Pd,Pt,Ni)S Vysotskite (Pd,Ni)S | | | Journal (article/letter/editorial) | to isomertierite from Miessijoki, Finnish Lapland, Finland. Canadian Mineralogist, 49, 1643–1651. Törnroosite...River, Lemmenjoki area, Inari Commune, Finnish Lapland, Finland (25°42ʹ33ʹʹN; 68°42ʹ30ʹʹE). The source of...the placer include gold, platinum, sperrylite, cooperite, braggite, irarsite, laurite, isomertieite, mertieite...Helsinki, Finland Helsinki, who first reported a mineral of similar composition at Finnish Lapland (Törnroos...platinumgroup minerals and alloys from Finnish Lapland. Int. Geol. Correlation Program, Project 336 Symposium | | | Journal (article/letter/editorial) | Lgndon, after whom it is named. [M.A. ~-468.] Cooperite. F. Wartenweiler, 1928. In R. A. Cooper, Journ...described (loc. cir., 1928, p. 281). Not the cooperite of --Adam, 1869. Also trade-name for an alloy...Liparit). A ferruginous talc (F%O 3 9:25 %) from Finland. From ,~apg~, oily. (4) J. Roth, 1861. Die Gesteins-Analysen...sodium, &c. Named from the Murman Coast, Russian Lapland. Nagatelite. S. Iimori, J. Yoshimura, and S. Hata... Nuolainniemi, Impilahti parish, Lake Ladoga, Finland. [M.A. 4-250.] Oxymagnite. A. N. Winchell, 1931 | | | Journal (article/letter/editorial) | -12 weight % Pd from the Miessijoki placer in Finland (Tornroos and Vuorelainen, 1987), or up to 19 weight...stability field of PdS (vysotskite) compared to PtS (cooperite), depending on temperature, pH, chlorine activity...Merkle, R,K,W, (1999). Milli-PKE of coexisting cooperite and braggite - a comparison with eiearon micropnabe...R.K.W. and Verryn, S.M.C. (1991)- Coexisting cooperite and braggite - new data. ICAM '91, International...alloys in nuggets from alluvial deposits in Finnish Lapland, Lithos, 20, 491-500. Vermaak, C,F. (1976). The | | Barkov, Andrei, Shvedov, Gennadiy, Silyanov, Sergey, Martin, Robert (2018) Mineralogy of Platinum-Group Elements and Gold in the Ophiolite-Related Placer of the River Bolshoy Khailyk, Western Sayans, Russia. Minerals, 8 (6) 247 doi:10.3390/min8060247 | Journal (article/letter/editorial) | 61Ru0.05)Σ2.01 (S2.83As 0.16)(labeled Σ2.99], cooperite, [(Pt0.88Rh 0.04which )Σ0.92S1.08 bowieite rich...of the placer grain of isoferroplatinum, Isf cooperite, Cp [(Pt68.30.88 Rh )Σ0.92 S1.08 ] and a seleniferous...Cu2.2 2.2]. rim, composed of cooperite (Cp) [(Pt rim, composed of cooperite (Cp) [(Pt0.93 Pd0.02 )S1.05...assemblage at the rim. Compositions of five grains of cooperite are close to being stoichiometric (#3, 4, Table...Khailyk deposit. # 1 2 3 4 5 6 7 8 9 Laurite Cooperite Bowieite (Cu-rich) UN Tsp Ru Os Ir Rh Pt | | Coggon, J.A., Nowell, G.M., Pearson, D.G., Oberthür, T., Lorand, J.-P., Melcher, F., Parman, S.W. (2012) The 190Pt–186Os decay system applied to dating platinum-group element mineralization of the Bushveld Complex, South Africa. Chemical Geology, 302. 48-60 doi:10.1016/j.chemgeo.2011.10.015 | Journal (article/letter/editorial) | Bushveld Complex, S. Africa. Mixed PGM (laurite, cooperite, laurite–platarsite, sperrylite and Pt–Fe alloy)...2024 Ma± 101 Ma was calculated for a Merensky cooperite; a Pt–Fe alloy from the Onverwacht pipe and a...(platinum-group minerals), particularly PGE alloys (Lapland Greenstone Belt and Ural Mountains, Nowell et al...(isochron) Mixed PGM (single grain model age) Cooperite (single grain model age) Pt–Fe nugget (isochron)...separation methods. Grains of laurite (RuS2, n = 23), cooperite (PtS, n = 10), laurite–platarsite (n= 1), sperrylite | | Fonseca, Raúl O.C., Brückel, Karoline, Bragagni, Alessandro, Leitzke, Felipe P., Speelmanns, Iris M., Wainwright, Ashlea N. (2017) Fractionation of rhenium from osmium during noble metal alloy formation in association with sulfides: Implications for the interpretation of model ages in alloy-bearing magmatic rocks. Geochimica et Cosmochimica Acta, 216. 184-200 doi:10.1016/j.gca.2017.04.041 | Journal (article/letter/editorial) | 168 - -1.2 Isoferroplatinum + mss + melt + cooperite C2 Pt 950 950 168 - -0.4 Isoferroplatinum...melt Isoferroplatinum + melt 151 presence of cooperite in equilibrium with isoferroplatinum (Pt3 Fe)...other in iss. One experiment, at 900 ◦ C also had cooperite (PtS) crystals 239 present, which is not surprising...metals (red squares), laurite (grey circles), cooperite (open red squares), sulfide melt (open blue circles)...constant (ca. 364 0.45) between 1050 and 850 ◦ C). Cooperite, which occurs at 900 ◦ C, has the same 365 ((Re/Os) | | Oberthur, T., Weiser, T. W., Gast, L., Schoenberg, R., Davis, D. W. (2002) PLATINUM-GROUP MINERALS AND OTHER DETRITAL COMPONENTS IN THE KAROO-AGE SOMABULA GRAVELS, GWERU, ZIMBABWE. The Canadian Mineralogist, 40 (2) 435-456 doi:10.2113/gscanmin.40.2.435 | Journal (article/letter/editorial) | reported by Törnroos et al. (1998) from Finnish Lapland. The individual grains mostly have a smooth surface...MINERALOGIST Pt–Pd sulfides Unnamed PGM PGM of the cooperite – braggite – vysotskite series are the only detrital...(dominantely Pt,Pd bismuthotellurides, sperrylite and cooperite–braggite; Farahmand 1974, Johan et al. 1989, Coghill...Platinum Symp. (H. Papunen, ed.). Bull. Geol. Soc. Finland 61(1), 53-54. KROGH, T.E. (1973): A low contamination...platinum-group minerals and alloys from Finnish Lapland. Geol. Surv. Finland, Spec. Pap. 26, 6364. TYNDALE-BISCOE | | Barkov, Andrei, Tamura, Nobumichi, Shvedov, Gennadiy, Stan, Camelia, Ma, Chi, Winkler, Björn, Martin, Robert (2019) Platiniferous Tetra-Auricupride: A Case Study from the Bolshoy Khailyk Placer Deposit, Western Sayans, Russia. Minerals, 9 (3) 160 doi:10.3390/min9030160 | Journal (article/letter/editorial) | various alluvial deposits in the Sotajoki* area, Finland [22]; Durance, France [23,24];complex in placers...Zolotaya* western Sayans Olkhovaya-1, Sotajoki* area, Finland [22]; Durance, France [23,24]; in placers of the...Bolshoy Khailyk deposit. laurite–erlichmanite cooperite, bowieite (Cu-rich), a themonosulfide-type phase...complex, BC, Canada [5]; SOT is the Sotajoki area in Finland [22]; ZOL is the Zolotaya River placer, western...alloys in nuggets from alluvial deposits in Finnish Lapland. Lithos 1987, 20, 491–500. Ohnenstetter, M.; Johan | | | Report (issue) | Bonaccordite Braggite Bultfonteinite Clairite Cochromite Cooperite Djerfisherite [*) Effenbergerite Ferro-actinolite...zeolite Blue-Ironstone Bushmanite Columbomicrolite Cooperite Y Dutoitsp anite Erinite (of Van der Lingen) Framesite...Trinicdibisulite Tripalstibite Braggite Niggliite Cooperite Platarsite Geversite Stumpflite Niggliite Hollingworthite...Modderite (1924) Afwillite (1925) Maghemite (1927) Cooperite (1928) Stibiopalladinite (1929) Braggite (19321...Braggite-vysots kite series. Dimorphous with cooperite. (Pt,Pd,Ni)S The mineral is also found in the | | Grokhovskaya, T. L., Ivanchenko, V. N., Karimova, O. V., Griboedova, I. G., Samoshnikova, L. A. (2012) Geology, mineralogy, and genesis of PGE mineralization in the South Sopcha massif, Monchegorsk complex, Russia. Geology of Ore Deposits, 54 (5) 347-369 doi:10.1134/s1075701512050029 | Journal (article/letter/editorial) | the PtS–PdS–NiS system—braggite (Pd,Pt,Ni)S, cooperite PtS, and vysotskite (Pd,Ni)S—develop in pyroxenite...segregations varying in chemical composition from cooperite to vysotskite (Fig. 11c). Braggite reveals epigenetic...(c) compositional variations in the braggite–cooperite–vysotskite series; (1) zonal grain in pyroxenite...Related to Isomertieite from Miessijoki, Finish Lapland, Finland, Can. Mineral., 2011, vol. 49, no. 6, pp. |
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