 | Barnes, Sarah-Jane, Pagé, P., Prichard, H. M., Zientek, M. L., Fisher, P. C. (2016) Chalcophile and platinum-group element distribution in the Ultramafic series of the Stillwater Complex, MT, USA—implications for processes enriching chromite layers in Os, Ir, Ru, and Rh. Mineralium Deposita, 51 (1) 25-47 doi:10.1007/s00126-015-0587-y | Journal (article/letter/editorial) | | distribution in the Ultramafic series of the Stillwater Complex, MT, USA—implications for processes enriching...of the rocks from the Ultramafic series of the Stillwater Complex are enriched in PGE relative to most...how the enrichment occurred in the case of the Stillwater Complex and applied our results to the chromite...and fine-grained intergrowths of pentlandite, millerite, and chalcopyrite. The laurite occurs as inclusions...Geological Survey, Spokane Office, Spokane, WA, USA whole rock and magnetite rims around the sulfides |  | Prichard, Hazel M., Barnes, Sarah-Jane, Fisher, Peter C., Pagé, Philippi, Zientek, Michael L. (2017) Laurite and Associated PGM In the Stillwater Chromitites: Implications For Processes of Formation, and Comparisons With Laurite In the Bushveld and Ophiolitic Chromitites. The Canadian Mineralogist, 55 (1) 121-144 doi:10.3749/canmin.1600006 | Journal (article/letter/editorial) | | 3749/canmin.1600006 LAURITE AND ASSOCIATED PGM IN THE STILLWATER CHROMITITES: IMPLICATIONS FOR PROCESSES OF FORMATION...nine chromite layers (A to K) in the Stillwater Complex, Montana and then extend the study to examine...Complex and ophiolites. The most common PGM in the Stillwater chromitites is laurite, predominantly enclosed...of the PGM within the chromite grains in the Stillwater chromitite layers is not uniform. Upper and lower...the lower layers. Comparison of the shape of Stillwater laurites with those in the Bushveld Complex chromitites |  | | Journal (article/letter/editorial) | | correlation of major chromitite layers across four mine sections at the investigated localities (modified...With the exception of samples from the Pedrinhas mine which contain serpentine as the major interstitial...serpentinization of intercumulus olivine (Pedrinhas mine). B Moderately altered chromite grains in strongly...strongly chloritized chromitite (Cascabulhos mine): unaltered chromite (dark core) is replaced by compact...in chromitite with carbonate veins (Cascabulhos mine): compact ferrian chromite is almost totally replaced |  | Kojonen, K. K., Roberts, A. C., Isomaki, O.-P., Knauf, V. V., Johanson, B., Pakkanen, L. (2004) Tarkianite, (Cu,Fe)(Re,Mo)4S8, a new mineral species from the Hitura mine, Nivala, Finland. The Canadian Mineralogist, 42 (2) 539-544 doi:10.2113/gscanmin.42.2.539 | Journal (article/letter/editorial) | | Fe)(Re,Mo)4S8, A NEW MINERAL SPECIES FROM THE HITURA MINE, NIVALA, FINLAND KARI K. KOJONEN§ Geological Survey... OLLI-PEKKA ISOMÄKI Outokumpu Mining Oy, Hitura Mine, FIN–85560 Ainastalo, Finland VLADIMIR V. KNAUF...in sulfide concentrate from the Hitura Ni–Cu–PGE mine, Nivala, western central Finland. It is associated...electron-microprobe data, reflectance data, Hitura mine, Nivala, Finland. SOMMAIRE Nous décrivons la tarkianite...récemment dans un concentré de sulfures provenant de la mine à Ni–Cu–EGP de Hitura, près de Nivala, dans le centre-ouest |  | | Report (issue) | | 12.60(2) Z = 16 X-ray Powder Pattern: Oktyabr mine, Russia. 2.42 (10), 2.10 (5), 3.05 (4), 2.74 (3)...0.46 1.46 26.32 Total 100.6 100.79 (1) Oktyabr mine, Russia; by electron microprobe, average of analyses...Russia); in the layered ultramafic Stillwater complex (Nye, Montana, USA). Association: area, Russia). Chalcopyrite...Chalcopyrite, bornite, millerite, braggite, silver, kotulskite, clausthalite (Talnakh Distribution:...Distribution: In Russia, from the Oktyabr mine, Talnakh area, Noril’sk region, western Siberia [TL], and in the Nadezhda |  | | Journal (article/letter/editorial) | | SCIENTIFIC COMMUNICATIONS PENTLANDITE AND COMPLEX, MONTANA: TION PYRRHOTITE FROM IRON-NICKEL OF ASSOCIA...TED Introduction Graterol and Naldrett, THE STILLWATER RATIOS MINERALS AS A FUNC• mite-olivine,..., A similar study has been in progressin the Stillwater Complex, of Precambrian age, southwestern 55EDJ-4...55EDJ-4, and C-395«) that containmineral blebs Montana, since 1967 as part of a U.S. Geological greaterthan...62.5ø incidentangleand 33.5ø minerals in the Stillwater Complex have been described by Page (1971a, b) |  | | Journal (article/letter/editorial) | | Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...The middle third of the state is known as the Montana alkali province where the sediments have MICHAEL...view showing the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal |  | | Journal (article/letter/editorial) | | pentIandite, pyrrhotite, chalcopyrite, pyrite, millerite, heazlewoodite, cobalt-pentlandite, polydymite...found in the anorthosites and chromitites. Pyrite-millerite appears to be an equilibrium pair in some rocks...Sciences Northwestern University Evanston, Illinais USA 60201 J. V. Smith Department of Geaphysical Sciences...Sciences University af Chicago Chicago, Illinais USA 60637 B. F. Windley Department of Gealagy University...X X X X "fine-grained Ni-sulphide, probably millerite; Cb cubanite, Cp chalcoDyrite, CP Co-pentlandite |  | Aird, Hannah M., Ferguson, Katherine M., Lehrer, Malia L., Boudreau, Alan E. (2017) A study of the trace sulfide mineral assemblages in the Stillwater Complex, Montana, USA. Mineralium Deposita, 52 (3) 361-382 doi:10.1007/s00126-016-0664-x | Journal (article/letter/editorial) | | sulfide mineral assemblages in the Stillwater Complex, Montana, USA Hannah M. Aird 1,2 & Katherine M....2016 Abstract The sulfide assemblages of the Stillwater Complex away from the well-studied ore zones...Ocean Sciences, Duke University, Durham, NC 27708, USA 2 Department of Geological and Environmental Sciences...California State University Chico, Chico, CA 95929, USA Ni in the Peridotite Zone is largely controlled...as the J-M reef. Keywords Magmatic sulfides . Stillwater Complex . Accessory mineral assemblages . Hydromagmatic |  | | Report (issue) | | Russia; by electron microprobe. (2–3) Stillwater complex, Montana, USA; by electron microprobe. Polymorphism...immiscible sulfide melt. Association: Chalcopyrite, millerite, nickelian pyrite, linnaeite, cooperite (Noril’sk...keithconnite, palladian tulameenite (Stillwater complex, Montana, USA); hongshiite, cooperite, sperrylite...the Upper and Banded portions of the Stillwater complex, Montana; from near Moapa, Clark Co., Nevada;...and from the Yuba River, Nevada Co., California, USA. At the Lac des Iles complex, Ontario, Canada. In |  | | Journal (article/letter/editorial) | | Layered igneous complexes such as Bushveld and Stillwater, have, for a long time, been the principal source...Colombia, Russia, British Columbia (Canada) and Alaska (USA). Recently, many unconventional PGE accumulations...reported from marine black shales of China, Canada, USA, Czech R e p u b lic, Finland, Poland and the former...N i - M o sulphides or sulphosalts (vaesite, millerite, violarite, polydymite, pentlandite and jordisite)...shales. Pyrite (framboidal and disseminated), millerite, pentlandite, chalcopyrite, sphalerite, galena |  | | Journal (article/letter/editorial) | | about 7:3 in the Merensky Reef and in the UG-2. Millerite as the dominant Ni-bearing BMS in the UG-2 changes...and De Villiers, 1982; Peyerl, 1982), from the Stillwater Complex (e.g. Todd et al., 1982; Volborth et...(BMS) penflandite, pyrrhotite, chalcopyrite, millerite, and pyrite (McLaren and De Villiers, 1982). In...assemblages containing pentlandite (pent) or millerite (mill). Mineral Origin Association W e i g h t...Ni-bearing phase is pentlandite and in the other one millerite with only traces of penflandite. The distinct |  | | Journal (article/letter/editorial) | | al. 1982), but also from the J-M Reef of the Stillwater Complex (Criddle and Stanley 1985; Volborth et...the polished surface) or between cooperite and millerite (Volborth et al. 1986). Obviously, such a possibility...Schiffries and Rye 1990). Large grains of homogeneous millerite and the absence of textures that would suggest...pentlandite by millerite were considered strong evidence for the precipitation of millerite directly from...McCallum IS (1986) Halogen geochemistry of the Stillwater and Bushveld Complexes: evidence for transport |  | Barkov, A. Y., Fleet, M. E., Martin, R. F., Halkoaho, T. A.A. (2005) New data on "Bonanza"-type PGE mineralization in the Kirakkajuppura PGE deposit, Penikat layered complex, Finland. The Canadian Mineralogist, 43 (5) 1663-1686 doi:10.2113/gscanmin.43.5.1663 | Journal (article/letter/editorial) | | clinochlore. The base-metal sulfides [chalcopyrite, millerite, bornite, chalcocite, ferroan chalcocite(?), digenite...Les sulfures des métaux de base [chalcopyrite, millerite, bornite, chalcocite, chalcocite ferreuse(?),...compositions correspond to chalcopyrite (anal. 1), millerite (anal. 2), bornite (anal. 3), chalcocite (anal...vysotskite (vsk). D. A subhedral intergrowth of millerite (mlr) with unnamed Rh1–x(Ni,Fe,Cu)2+xS3 (UN)....minute micro-inclusions (black) present in the millerite consist of clinochlore. Back-scattered-electron |  | Mogessie, A., Stumpfl, E. F., Weiblen, P. W. (1991) The role of fluids in the formation of platinum-group minerals, Duluth Complex, Minnesota; mineralogic, textural, and chemical evidence. Economic Geology, 86 (7) 1506-1518 doi:10.2113/gsecongeo.86.7.1506 | Journal (article/letter/editorial) | | interpretation. Introduction Ir values for the Stillwater, Bushveld, and Duluth Complexes arecalculated...datanowavailableandpresently terns in the Bushveld, Stillwater and Duluth Com- beingacquiredfor the Duluth Complexindicatethat...sulfideore, (2) PGE associated with 910.5 for the Stillwater, and 12.66 to 20.67 for the chromespinel-richrocks...VolborthandHousley (1984) and Volborthet al. (1986) from the Stillwater Complexand by Ballhausand Stumpfl(1985, 1510...Thismineralassemblage to that reported from the Vermillion mine, Ontario, drill core H-1 containmore than 60 modal |  | | Report (issue) | | a = 5.967 Z=4 X-ray Powder Pattern: Vermilion mine, Sudbury, Canada. 1.801 (100), 0.777 (90), 1.148...42.8 (2) 43.44 Total 99.68 100.00 (1) Vermilion mine, Sudbury, Canada; by electron microprobe, corresponding...gersdorffite, pyrite, chalcopyrite, violarite, millerite, galena, stibnite, argentian gold, niggliite,...district, near Sudbury, Ontario. In the USA, at the New Rambler Cu–Ni mine, Medicine Bow Mountains, east of...Key West mine, east of Moapa, Bunkerville district, Clark Co., Nevada; and from the Stillwater complex |  | Han, Chunming, Xiao, Wenjiao, Zhao, Guochun, Su, Benxun, Ao, Songjian, Zhang, Jien, Wan, Bo, Wang, Zhongmei, Ding, Jiaxin, Qu, Wenjun, Du, Andao (2014) Re-Os Isotopic Age of the Hongqiling Cu-Ni Sulfide Deposit in Jilin Province, NE China and its Geological Significance. Resource Geology, 64 (3) 247-261 doi:10.1111/rge.12039 | Journal (article/letter/editorial) | | (Russia; Walker et al., 1994), the Stillwater Complex (Montana, USA; Lambert et al., 1989; Martin, 1989)...chalcopyrite, violarite, pyrite, valleriite, millerite, nickeline, ilmenite, galena and magnetite, and...and massive ores with pentlandite + violarite + millerite + magnetite. The second is the autometamorphic...measured by using TJA X-series ICP-MS (TJA, Denver, CO, USA). For Re, the mass numbers 185 and 187 were selected...compositions of the Cu–Ni sulfide ores from the Hongqiling mine are shown in Table 2. Due to the diversity of ore |  | | Book | | during mining and milling, are introduced into mine concentrates and mill products. Often they have...incipient alteration (heazlewoodite alters to millerite beneath dried oil droplets). However, many ore...acanthite and altered argentopyrite. Tynebottom Mine, North Pennines, Britain le galena. Cabagal effect...sphalerite and carborundum grit. Settlingstones Mine, North Pennines, Britain Islands. Britain A dried...copyrite, pyrrhotite secondary violarite and millerite, platinum group minerals Euhedral chromite grains |  | | Report (volume) | | Inclusions Within the B Chromitite, Stillwater Complex, Montana U.S. GEOLOGICAL SURVEY BULLETIN 1674-D...Inclusions Within the B Chromitite, Stillwater Complex, Montana By MICHAEL P. FOOSE and SUZANNE W. NICHOLSON...inclusions within the B chromitite of the Stillwater Complex, Montana, provide evidence for complex high-temperature...inclusions within the B chromitite, Stillwater Complex, Montana. (U.S. Geological Survey bulletin ; 1674-D)...Bibliography: p. 1. Sulfide minerals Montana. 2. Mineralogy Montana. SuzanneW. II. Title. III. Series. |  | Bow, C., Wolfgram, D., Turner, A., Barnes, S., Evans, J., Zdepski, M., Boudreau, A. (1982) Investigations of the Howland Reef of the Stillwater Complex, Minneapolis Adit area; stratigraphy, structure, and mineralization. Economic Geology, 77 (6) 1481-1492 doi:10.2113/gsecongeo.77.6.1481 | Journal (article/letter/editorial) | | depositoccurswithin the lower part of the banded zoneof the Stillwater Complex, a layered, tholeiitic intrusionof Archcanage...mineraldepositthat occurs within the lower banded zone of the Stillwater Nomenclature Complex(Fig. 1). This paper is...platinum-bear- the terminologyemployedby other Stillwater working zone of the StillwaterComplex.We designatethe...•*:. •,-- ' ......a*••=::-'•":•,?• "" "'•'• STILLWATER ::'• C/• ff' •"•': .•::•-• •••• ' • •...positions of the sections de- HOWLAND REEF,STILLWATER COMPLEX 14813 velopedunderground are relatedto |  | | Journal (article/letter/editorial) | | chalcopyrite, pyrite±millerite. A minor amount of palladium is present in millerite, but most is present...Fe-loss from pentlandite to form millerite (resulting in the millerite inheriting some Pd). The PGE concentrations...Pyrrhotite . Pentlandite . Chalcopyrite . Pyrite . Millerite . Palladium deposits . Lac des Iles . Canada ...Von Gruenewaldt et al. 1986, the JM reef of the Stillwater Complex: Zientek et al. 2002 and the Main Sulfide...exception to this observation is the JM reef of the Stillwater Complex, which has higher Pd/Ir of 865 and Pd/Pt |  | | Journal (article/letter/editorial) | | sulphide is chalcopyrite accompanied by some millerite, bornite and pentlandite. The other PGM's identified...discovered in the Upper and Banded Zones o f Stillwater Complex, Montana, U.S.A. Subsequently Cabri and Laflamme...sulphide is chalcopyrite with smaller amounts o f millerite, bornite and pentlandite. Minor pyrite, covelline...*X-ray p o w d e r diffraction data Siikaka'm//and Stillwater C o m p l e x 1 for stillwaterite from 2...correspond well to those of stillwaterite from the Stillwater Complex (Table 1). The X-ray powder diffraction |  | Benko, Z., Mogessie, A., Molnar, F., Severson, M. J., Hauck, S. A., Rai , S. (2015) Partial Melting Processes and Cu-Ni-PGE Mineralization in the Footwall of the South Kawishiwi Intrusion at the Spruce Road Deposit, Duluth Complex, Minnesota. Economic Geology, 110 (5) 1269-1293 doi:10.2113/econgeo.110.5.1269 | Journal (article/letter/editorial) | | dominant minerals are chalcopyrite, bornite, millerite, platinum group minerals (PGMs), native gold,...~25 vol %) pentlandite. Bornite-chalcopyrite-millerite-PGM assemblage: In the distal zones (>35 m from...11C-D). Occurrence of millerite associated with chalcopyrite is common. Millerite forms anhedral grains...minerals intergrown with actinolite or chlorite. Millerite is particularly associated with the bornite-chalcopyrite-PGM...Parkerite Ni3Bi2S2 Galena PbS Bornite-chalcopyrite-millerite-PGM assemblage Michenerite (PdBiTe) Sperrylite |  | | Journal (article/letter/editorial) | | irarsite, similar to Rh-Sb-S much harder than millerite Rh-Sb-S distinct brown 50% weak anisotropism...irarsite, similar to Ir-Sb-S, much harder than millerite Rh-Ni-Sb distinct yellow 55% very weak anisotropism...(Stumpf[ 1972,TorkiQn & Stumpf11975) A"= -)X A Stillwater, Montana z/ ~ (Volborth et.a11986) _/) 7~ • Shetland...minerals in the chromitites of the Kokkinorotsos chrome mine, Cyprus. In: Panayiotou, A. (ed.) Proceedings of...Stumpfl, E.F.: Platinum Mineralogy of the Driekop Mine, South Africa. Mineral Deposita 10:71-85 (1975) |  | | Journal (article/letter/editorial) | | close-up of A. Abbreviations: P, pentlandite; M, millerite; B, bornite. PGM IN PODIFORM CHROMITITES OF... pentlandite, unknown Cu-rich Ni–Fe sulfide, millerite, bornite and heazlewoodite. Inclusions of pentlandite...spinel (Fig. 6G). The grains of Ni–Fe alloy and millerite are usually found as large aggregates in the interstitial...comparable to what has been reported from the Stillwater Complex, Montana (Cabri 1981). Alloys The chemical composition...PGErich desulfurized base-metal sulfide, e.g., millerite. The PGE (Ru + Os + Ir) to base metal (Ni + Fe) |
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