 | | Journal (article/letter/editorial) | | naturally occurring) metal-deficient, hexagonal pyrrhotite by an rc-ray spacing method. ,42. Minerol.47...structure oI naturally occurring troilite and pyrrhotite. Am. MineraL.4g, 1350_1365. Dnsnonoucu, G. A...eNo R. H. cenpnNren (1965) phase relations ol pyrrhotite. Econ. Geo|,.6O.1431450. GnlNvorn, F. exn H....colrected from its later intrusions, exposed in an old quarry in the Townland of Drogan, near Doraville, northwest...manv times the cup should be tapped to assistthe settling of the mineral powder in the cup, or the number |  | | Journal (article/letter/editorial) | | apatite, amphiboles, pyroxenes, pyrite, and pyrrhotite. The crystal size of both calcite and graphite...Tabular graphite crystal (1 mm) in calcite with pyrrhotite and titanite from an outcrop near Olmstedville...iron oxides from decaying iron sulfide, perhaps pyrrhotite, yielded the three graphite specimens. The best...spheres of graphite, associated with crystals of pyrrhotite, pyrite, fluorescent diopside, titanite, apatite...quartz and calcite from a skarn zone at the Treadway quarry, Port Henry, Essex County. Many of the graphite |  | | Journal (article/letter/editorial) | | numberof associations suchas magnetite-covellite, pyrrhotite-hematite and, in the presence of magnetite,bornite-pyrite...cooling was far advanced. Certain minerals such as pyrrhotite and magnetite are early membersof the sequencenot...iron Y FE-S Formula Abbreviation Fe Fe Pyrrhotite Pyrite Fex_ā¢S FeS2 po py Marcasite FeS2 ... Smythite FeaS4 Sulfur S ms S The name pyrrhotite appliesto ferrous sulfidesranging in composition...along with the monoclinicferromagneticvariety of pyrrhotite and earlier pyrite in Indiana where its temperatureof |  | | Journal (article/letter/editorial) | | partitioning at 8508C, 100 MPa in a haplogranitic meltāpyrrhotiteāintermediate solid solutionāgold metal assemblage...behavior of copper and gold in the phase assemblage: pyrrhotite ŽPo. āintermediate solid solution ŽIss. āhaplogranitic...Magmaticāhydrothermal systems; Gold; Copper; Pyrrhotite; Intermediate solid solution 1. Introduction...1969; Barton, 1973; Cabri, 1973. indicate that pyrrhotite ŽPo. can incorporate up to 7 wt.% Cu at 10008C...suggest that the partitioning of copper between pyrrhotite and a rhyolitic melt could result in a significant |  | Graham, I. T., Sybrand, , de Waal, A., Marshall, B. (2004) Late-magmatic calcite-pyrrhotite-chalcopyrite mineralisation associated with magmatically-evolved diorite, Marble Hall, South Africa. South African Journal of Geology, 107 (4) 545-558 doi:10.2113/gssajg.107.4.545 | Journal (article/letter/editorial) | | AND BRIAN MARSHALL 545 Late-magmatic calcite-pyrrhotite-chalcopyrite mineralisation associated with ...Geological Society of South Africa ABSTRACT Calcite-pyrrhotite-chalcopyrite veins are pervasively developed...chlorite, calcite, apatite, sphene, zircon (rare), pyrrhotite, chalcopyrite and pyrite. With increasing degree...the fluids gave rise to aggregates of calcite, pyrrhotite, rare chalcopyrite and sphene. The existence...presence of sulphur (manifested by the calcite-pyrrhotite veins), and the apparent overprint of a high |  | | Report (issue) | | Other minerals commonly found include pyrite, pyrrhotite, bornite, chalcocite, siderite, malachite, azurite...molybdenite. Molybdenite also occurs in a small granite quarry hortheast of Wilton in Granville County. In the...Molybdenum has also been prospected at the Neverson Quarry in Wilson County and in Halifax County on the Ellis...dense. Previouis Investigations Copper Prospect (CuP)* Since the mid 1850's many reports have been written...rock carries minor sulphides. Foust Copper Mine (CuP) Location: Located in southern Alamance County, |  | | Report (issue) | | Soft Myrrhine The Barber Cup Carved of banded fluorite, the Barber Cup is thought to be one of only...vessels described by Pliny as "vasa myrrhina. " The cup is 9.5 x 13.5 cm and is housed at the British Museum...vessels: the Barber and Crawford cups. The Crawford Cup can be traced directly back to a tomb discovered...sold the contents of the tomb, except the Crawford Cup but including another similar vessel, to a Greek...subsequently buried, is thought to be Roman. The Barber Cup, pictured left, turned up in a collection in Brussels |  | Kozdon, Reinhard, Kita, Noriko T., Huberty, Jason M., Fournelle, John H., Johnson, Craig A., Valley, John W. (2010) In situ sulfur isotope analysis of sulfide minerals by SIMS: Precision and accuracy, with application to thermometry of ā¼3.5Ga Pilbara cherts. Chemical Geology, 275 (3) 243-253 doi:10.1016/j.chemgeo.2010.05.015 | Journal (article/letter/editorial) | | precision for Ī“34S is Ā±0.3ā° for chalcopyrite and pyrrhotite, and Ā±0.2ā° for pyrite (2SD) using a 1.6 nA primary...approaches Ā±0.3ā° (2SD) for chalcopyrite, pyrite and pyrrhotite and Ā±0.6ā° for sphalerite. Measurements of Ī“34S...grain-to-grain precision of Ā±0.3ā° (2SD) for chalcopyrite, pyrrhotite, and Ā±0.2ā° for pyrite. Previous studies have...analyzed several sulļ¬de minerals (chalcopyrite, pyrrhotite, and pyrite) with analytical precisions between...homogeneous natural sulļ¬de minerals, chalcopyrite, pyrrhotite, and pyrite. In the second part, we address the |  | | Journal (issue) | | Wanlockhead in 1981. Spiky white aragonite and a pyrrhotite - tarnished brassy coloured platy crystals with...discovery made by Chris and colleagues in the Durnford Quarry a few years ago. In addition there were 10 examples...and crednerite on rhodochrosite from Torr Works Quarry. 2. Tony Lee. Tonyās entry focused on minerals...collected over a decade from the granite aggregate quarry at New Cliffe Hill in Leicestershire. A poster...poster in the cabinet stated that up to 2005 this quarry produced 5 million tons per annum of granite for road |  | | Journal (article/letter/editorial) | | elsevier.com/locate/epsl DiĀ”usion of osmium in pyrrhotite and pyrite: implications for closure of the Re^Os...the diffusion behavior of osmium in pyrite and pyrrhotite. Experiments consisted of either (1) isothermal...diffusion couples consisting of natural pyrite or pyrrhotite crystals packed against powdered Os-bearing Fe-sulfide...microprobe analyses across sectioned run products (pyrrhotite). Results of the first type of diffusion experiment...at 500Ā³C was calculated. Experiments involving pyrrhotite over the temperature range of 950^1100Ā³C showed |  | | Book (volume) | | analyses; to Prof. Eric Pirard (UniversitĆ© de LiĆØge, Belgium), some CopperBelt ores (DR Congo); and to Dr. MarĆa...the projectās colleagues (University of LiĆØge , Belgium; ThinSectionLab, France; KGHM, Poland; Cobre Las...Analysis 19 Fig. 1.8 Allotriomorphic gold and pyrrhotite, interstitial in vein inļ¬ll of idiomorphic arsenopyrite...Textures Fig. 1.17 Massive, compact, ore of pyrrhotite, chalcopyrite, sphalerite, arsenopyrite, quartz...(dsp). b Massive nickelite ore (with maucherite, pyrrhotite, chalcopyrite). CR-374, Frood Mine, Sudbury, |  | | Journal (article/letter/editorial) | | minerals are : 1. Halloysite from the Hospital Quarry, near Elgin ; 2. Fibrolite from Pressendye Hill...Glen Urquhart, and from the Tiree marble; 17. Pyrrhotite from Fiermore, Blair Athol ; 18. Pyromorphitāe...Aragonite from Leadhills; 20. Reddle from Newton Quarry, near Elgin; 21. Lydian stone from Kinkell, Fife...the Giantās Causeway ; 25. Ozokerite from Binny Quarry, Linlithgowshire. B. H. B. Peridotites near Peekskill...and evenly curved, with the exception of sevei-a1 cup-shaped depressions, due, apparently, to unequal exfoliation |  | McCubbin, F. M., Shearer, C. K., Burger, P. V., Hauri, E. H., Wang, J., Elardo, S. M., Papike, J. J. (2014) Volatile abundances of coexisting merrillite and apatite in the martian meteorite Shergotty: Implications for merrillite in hydrous magmas. American Mineralogist, 99 (7) 1347-1354 doi:10.2138/am.2014.4782 | Journal (article/letter/editorial) | | volatile-free fluorine, which was analyzed with the Faraday cup, resulting in a detection limit for fluorine of approximately...fluorine which was analyzed with theBrought faraday cup, in a detection limit Technical for fluorine of approximately...multipliers, so F was analyzed using a Faraday cup. The Faraday cup has a significantly larger background than...of pyroxene, maskelynite, magnetite, ilmenite, pyrrhotite, apatite, merrillite, fayalitic olivine, and...maskelynite, = clinopyroxene, Si = silica,Ap and Po pyrrhotite. Me = Merrillite, Ti-Mt = the phaseolivine, abbreviations |  | | Report (issue) | | ;ut46 XOR Znc122 80-90 Moc12 J I I / 10D Cuc64 Cup 3 4 Z np 130 Mop 10 ) I ... ļæ½ I I I I I I...diorites in the western limb of the outcrop, pyrite, pyrrhotite and chalcopyri te are generally present in both...only result of note was 360 ppm Cu in one of the quarry samples. Allt Eilidh In the valley of Allt Eilidh...abundance. It is occasionally accompanied by pyrrhotite and rarely by traces of chalcopyrite. Other accessories...disseminated pyrite and another had disseminated pyrrhotite and chalcopyrite. Trace element contents are |  | | Journal (article/letter/editorial) | | des Eglantines 2, B61 10 Montigny-le-Tilleul. Belgium Baltimore Mineral Society (8-10 September 2000):...symposium theme for 1999 was Minerals of the Eureka Quarry (located in Bucks County). Late March and early...speaker, described the Minerals of the Hunting Hill Quarry, slated for a field trip on the following Sunday;...for the projected field trip to the Hunting Hill quarry, but not before U.S. Geological Survey member Andrew...sorts (1998 was the minerals of the Baveno granite quarry) and a social dinner with lectures on Saturday |  | | Report (issue) | | occurrence Princess sodalite mine Vardy quarry Golding-Keene quarry Egan Chute occurrences York River tactite...tactite zone occurrence Morrison quarry Davis quarry York River corundum occurrence Childs Mine Rankin...Mine Woodcox occurrence Padwell Mine Eagle Lake quarry Crystal Lake fluoborite occurrence Crystal Lake...Tory Hill - Gooderham - Kinmount Hadley granite quarry Canadian All-Metals mine Gibson Road (western)...occurrence Gill quarries Highway 507 road-cut Fraser quarry Nu-World uranium mine Dancey tremolite occurrence |  | | Journal (article/letter/editorial) | | in the rock. Sulfide globules of pentlandite, pyrrhotite and cubanite are prominent in the intermediate...Key words: Submarine volcanism, pentlandite, pyrrhotite, cubanite, titanomagnetite, Ti-bearing chromite...type (b) consisting of small (< 5 Āµm) euhedral pyrrhotite forming spherulitic clusters, and type (c) forming...forming blades of single-phase euhedral pyrrhotite coating vesicle walls. are associated with smaller...clinopyroxene, ol = olivine, ap = apatite. sulfide = pyrrhotite and multiphase sulfide (Fe, Ni, Cu and Zn) Province |  | | Journal (article/letter/editorial) | | 4 0.10 0.10 0.10 1.0 4.0 2.0 Marginalzone--pyrrhotite lake traverse Po 4 51.69 Pierite 64 Po 6...mostcommonassemblage foundduringthe present study was pyrrhotite-pentlandite-cubanite-chalcopyrite. Representativeanalysesare...monosulfide solidsolutionwould have recrystallizedinto pyrrhotite, pentlandite,and cubanite(Kullerud et al., 1969)...and Cu in the intrusion as determined in our pyrrhotite. Chalcopyriteis rare and occurseither asdiscrete...the PGE If sulfideliquid (now representedby pyrrhotite, pentlandite,andcubanite)wasthe mainphasecontrollingthe |  | Simon, A. C., Candela, P. A., Piccoli, P. M., Mengason, M., Englander, L. (2008) The effect of crystal-melt partitioning on the budgets of Cu, Au, and Ag. American Mineralogist, 93 (8) 1437-1448 doi:10.2138/am.2008.2812 | Journal (article/letter/editorial) | | magnetite, ulvƶspinelmagnetite solid solution, and pyrrhotite crystallization on the budgets of Au, Cu, and...Partition coefficients for Cu and Au between pyrrhotite and melt indicate that a temperature change from...that the co-crystallization of magnetite and pyrrhotite sequester no more than 2% Ag, 7% Cu, and 37%...crystallization, the presence of end-member magnetite and pyrrhotite do not appear to inhibit the Cu-, Au-, and Ag-ore...silicate melt to a crystallizing phase such as pyrrhotite (PO) can be described by one possible equilibrium |  | Cui, Huan, Kitajima, Kouki, Spicuzza, Michael J., Fournelle, John H., Ishida, Akizumi, Brown, Philip E., Valley, John W. (2018) Searching for the Great Oxidation Event in North America: A Reappraisal of the Huronian Supergroup by SIMS Sulfur Four-Isotope Analysis. Astrobiology, 18 (5) 519-538 doi:10.1089/ast.2017.1722 | Journal (article/letter/editorial) | | petrography, we reinterpret the dominance of pyrrhotite in the studied sections, which was previously...in the Huronian samples, which include pyrite, pyrrhotite, chalcopyrite, sphalerite, pentlandite, and cobaltite...analysis in this study. Only grains of pyrite, pyrrhotite, and chalcopyrite, that have been shown not to...Huronian samples show close association between pyrrhotite (Po) and chlorite (Cht). Images B, D, F, H show...were detected simultaneously using four Faraday cup detectors with modified slits as described by Ushikubo |  | Stergiou, Christos L., Melfos, Vasilios, Voudouris, Panagiotis, Papadopoulou, Lambrini, Spry, Paul G., Peytcheva, Irena, Dimitrova, Dimitrina, Stefanova, Elitsa, Giouri, Katerina (2021) Rare and Critical Metals in Pyrite, Chalcopyrite, Magnetite, and Titanite from the Vathi Porphyry Cu-AuĀ±Mo Deposit, Northern Greece. Minerals, 11 (6) 630 doi:10.3390/min11060630 | Journal (article/letter/editorial) | | pyrite and chalcopyrite reveal the presence of pyrrhotite, galena, and Bi-telluride inclusions in pyrite...and (5) sphalerite + galena + arsenopyrite + pyrrhotite + pyrite + tetrahedrite Ā± stibnite Ā± tennantite...sample (sericitic alteration); (f) pyrite (Py), pyrrhotite (Po), and chalcopyrite (Cpy) in E-type vein from...Au Ā± Bn Ā± Mol Ā± Po Ā± Pn Ā± Tnt Ā± Ttr Ā± Wt Ā± Flt Ā± Cup Ā± Sch Latite Propylitic Epithermal Quartz monzonite...Cal = calcite, Chl = chlorite, Cpy = chalcopyrite, Cup = cuprobismutite, Dol = dolomite, Ep = epidote, Flt |  | BULLOCK, Emma S., McKEEGAN, Kevin D., GOUNELLE, Matthieu, GRADY, Monica M., RUSSELL, Sara S. (2010) Sulfur isotopic composition of Fe-Ni sulfide grains in CI and CM carbonaceous chondrites. Meteoritics & Planetary Science, 45 (5) 885-898 doi:10.1111/j.1945-5100.2010.01052.x | Journal (article/letter/editorial) | | 2001). Sulļ¬de minerals identiļ¬ed in the CI1s are pyrrhotite ([Fe,Ni]1)xS); pentlandite ([Fe,Ni]9S8), and...The sulļ¬de minerals found in CM chondrites are pyrrhotite, pentlandite, troilite (FeS), tochilinite (interlayered...a sulļ¬de intermediate in composition between pyrrhotite and pentlandite āintermediate sulļ¬deā. Sulļ¬des...32S, 33S, and 34S negative ion beams in Faraday cup detectors. Primary beam currents were 1ā2 nA, resulting...analytical sessions, pyrite (Balmat, d34S = 15.1&), pyrrhotite (Anderson, d34S = 1.4&), and CDT (ā0.0&) were |  | | Book | | Nickel. ā The principal ore of nickel is pyrrhotite, ORES OF METALS 7 composed essentially and...reappreciable quantity of nickel. gion, Ontario, the pyrrhotite is mixed with small quantities of pentlandite...quantities of copper pyrites, zinc blende, galena, pyrrhotite, magnetite, mispickel, rides, molybdenite, ...The quartz carries small quantities of pyrite, pyrrhotite, mispickel, and free gold. drifting done,...seem to be associated with copper pyrites. Pyrrhotite, mispickel, and molybdenite occasionally galena |  | | Journal (article/letter/editorial) | | include anhydrite, galena, honessite, millerite, pyrrhotite, smithsonite, smythite, and sulfur. The first...1957), where it was found as inclusions with pyrrhotite and other iron sulfides in calcite, barite, dolomite...on {0221}, 4 cm across; Meshberger Stone, Inc. quarry, Bartholomew County. Richard Russell specimen and...largest crystal 3.5 cm across; Berry Materials quarry, JennĀ ings C o . J . Kielbaso specimen; R . Russell...right): Pyrite, 1.5 cm high; Rensselaer Stone C o . quarry, Jasper County. Vernon Swanson speciĀ men; Richard |  | | Journal (article/letter/editorial) | | occurrences designatedas economicpentlandite-pyrrhotite deposits. In addition TALLY.1.- SampleLocalities...of pentlanditein assemblages with pyrrhotite or pyrite and pyrrhotite as groupedby Harris and Nickel. It...conventionalmethods and the final product was purified from pyrrhotite by dissolvingit in oxalic Kouvo et al., 1959;...2 mg and its concentration in the sample ite-pyrrhotite (and pyrke) assemblages. is not lessthan ca....support the sen.tspecimens from economicpentlandite-pyrrhotite opinion that the thermal stability of the cobaltian |
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