 | | Report (issue) | | 02 )Σ=0.99 (Al2.01 Si0.01 )Σ=2.02 O4 . (2) Geco mine, Canada; by electron microprobe, average of six points...Group: Forms two series, with spinel, and with hercynite. Spinel group. Occurrence: An accessory mineral...staurolite, cordierite, pyrite, chalcopyrite (Geco mine, Canada). Distribution: Many localities, but most... Abundant at Falun, Sweden. From the Silberberg mine, near Bodenmais, Bavaria, Germany. At Tiriolo, near...Cotopaxi mine, Fremont Co., Colorado. In Canada, found at the Geco mine, Manitouwadge, Ontario; in Hudson |  | | Journal (article/letter/editorial) | | Example from the GecoMine, ManitouwadgeDistrict, Ontario, Canada ERICH U. PETERSEN Departmentof Geologyand...massive sulfidedeposits arethe majorsource of tin in Canada(e.g.,KiddCreekandSullivan;Mulligan, 1975). Tin... Gecovolcanogenic massive sulfidedeposit.The Geco mine is well suitedfor a studyof massivesulfide-related...abundances in various rock typesassociated with the Geco massivesulfide ores and reported that cassiteriteis...occurrenceand origin of tin in the Geco deposit. GeologicSetting Regionaland district geology The Manitouwadgeminingdistrict |  | | Journal (article/letter/editorial) | | Benson Mine District, Adirondack Mountains, New York and the Manitouwadge Massive Sulfide District, Ontario...Ontario, Canada, we have found several h6gbomite occurrences and believe that h6gbomite is more widespread...aluruinous rocks than previously recognized. At Benson Mine, an iron-rich h6gbomite (H6g) occurs with K-feldspar-magnetite...(Ilm)-biotite-almandine (Alm)-sillimanite (Sil)-quartz (Qz)-hercynite (Hc)-corundum (Cor)-rutile (Ru). At Manitouwadge...h6gbomite is found with gedrite-eordierite-staurolite-hercynite-magnetite_+ quartz + ilmenite _+futile + biotite |  | | Journal (article/letter/editorial) | | Departmentof Geology,Universityof Toronto,Toronto,Ontario, CanadaM5S 1A1 Abstract Zincianspinel [(Zn,Fe...studieshave determined thermodynamicdata for hercynite(Pillayet al., 1960; Rezukhinaet al., 1963; McLean...respectively.Calculatedvaluesof AH, AS, and AG•' mine the likely originof spinelin a numberof local- at...Gunter (1976). Molar volumesfor hematite,magnetite,hercynite,iron, and corundum arefromRobieet al. (1978) andthatfor...-lz gh-gahnite mt-magnetite sp-Zn-Fe spinelhc-hercynite sph-sphalerite po-pyrrhotite • -18 logf02 -22 |  | | Journal (article/letter/editorial) | | volcanogenic massive sulphide camp: Manitouwadge, Ontario, Canada Yuanming Pan a, M i c h a e l E. Fleet b ... Sask. STN OWO, Canada bDepartment of Earth Sciences, University of Western Ontario, London, Ont. N6A...N6A 5BZ Canada Received 12 April 1994; revised version accepted 20 February 1995 Abstract Cordierite-orthoamphibole...massive sulphide (VMS) deposits at Manitouwadge, Ontario. Trace-element characteristics, particularly those...Archaean terranes. The Manitouwadge mining camp, Ontario, Canada represents one of the classic localities of |  | | Journal (article/letter/editorial) | | analogue of ilmenite was first described from the North mine at Broken Hill, New South Wales, Australia by Brown...subsequently from the nearby Melbourne Rockwell mine at Little Broken Hill by Birch et al. (1982) and...Alvi Fe3+ Fe2+ Mn Mg Zn Ca Mol. percent Gahnite Hercynite Spinel Andradite Grossular Spessartine Pyrope...terms of the most abundant end member (gahnite, hercynite and spinel) (Fig. 4). Using the compositional...and then increases outward. Correspondingly the hercynite content behaves in a reverse manner. Poikiloblastic |  | Heimann, A., Spry, P. G., Teale, G. S., Jacobson, C. E. (2006) CORONAS, SYMPLECTITIC TEXTURES, AND REACTIONS INVOLVING ALUMINOUS MINERALS IN GEDRITE - CORDIERITE - GARNET GNEISS FROM EVERGREEN, FRONT RANGE, COLORADO. The Canadian Mineralogist, 44 (5) 1025-1044 doi:10.2113/gscanmin.44.5.1025 | Journal (article/letter/editorial) | | of aluminous minerals, including zinc-bearing hercynite (hc), staurolite (st), corundum (crn), cordierite...nowhere in contact with gedrite and garnet. Zincian hercynite – cordierite symplectites occur within the inner...whereas staurolite – corundum – cordierite and hercynite – cordierite pseudomorphs mimic the shape of prismatic...fluid-to-rock ratio. Reactions involving zincian hercynite were developed owing to the presence of sphalerite...gedrite – cordierite – garnet gneiss, zincian hercynite, corona, symplectite, Evergreen, Front Range, |  | | Journal (article/letter/editorial) | | Caledonides (Spry & Scott 1986b), the Linda deposit, Canada (Zaleski et al. 1991), and the Mamandur deposit...Mg in the tetrahedral site, whereas gahnite, hercynite, and spinel refer to zinc-bearing spinels dominated...Mountain and Cotopaxi deposits and the Grape Creek district near Canyon City and noted the intimate association...considered small, with the largest being the Sedalia mine, which contained about 1.2 million tonnes of ore...deposit, Quebec (Bernier 1992), the Geco Cu–Zn deposit, Ontario (Zaleski & Peterson 1995), the Don Mario |  | | Journal (article/letter/editorial) | | minute (mostly 0.1 ram) grains with fine-grained hercynite, magnetite, and rutile in two coarse-grained ...+ ZnO + H 2 0 + 02 = cordierite + chlorite + hercynite + hoegbomite + magnetite + B203. The conditions...orthopyroxene, gedrite, anthophyllite, spinel-hercynite, and rutile. Hoegbomite has a chemistry similar...Ellammankovilpatti, Tamil Nadu, India. Hoegbomite (H6g) and hercynite (Sp) in cordierite (Crd) between two prisms of...at Ellammankovilpatff. Tourmaline, magnetite, hercynite, rutile, biotite, monazite (3083E only), zircon |  | | Journal (article/letter/editorial) | | i o n s i n t e r m e d i a t e b e t w e e n hercynite a n d g a h n i t e is c o m m o n in h i g h.... . . . . . . . . 30 m o l e % z .......... hercynite x .......... 40 .z. . . . . . . . . . ~80 ...mole per cent of the end members gahnite (Zn), hercynite (Fe), and Mg-spinel (Mg) Part of the cordierite...cent gahnite and from 20 to 27 mole per cent hercynite. The grains are h o m o g e n o u s in composition...Biotite Breakdown and the Formation of Gahnite 40 hercynite ~o t 30 ".,% oo ' "5 Fig. 5. Plot of mole |  | | Journal (article/letter/editorial) | | Deposit of the English River Subprovince, Ontario, Canada: Evidence for an Exhalative Origin and Effects...Sciences, University of Saskatchewan, Saskatoon, Canada S7N 5E2 Abstract The Werner Lake Co-Cu-Au deposit...of significant Co in the waste rocks at the old mine site and the discovery of six lenses along strike...Zambian copper belt, Africa; and the Sykesville district, Maryland Piedmont), all of which are thought...PAN AND THERENS Pikwitonei Ashuanipi a Sashigo Bay in g as sk Bird River Winnipeg River James |  | | Journal (article/letter/editorial) | | one sample is a secondaryproduct of a Zn-beaing hercynite. The FeO content rangesfrom 28 to 30 wt0/0,making...in contact with zincian hdgbomite and zincian hercynite. In a second sample, a small grain of green spinel...Archean granite-greenstone terrane in the northeast district of Botswana. The belt consists of polymetamorphosed...(Sp), gahnite (Gh), zincian hdgbomite(Zn-Hg),and hercynite(Hc). - Fe,., as FeO. 0.00 55.62 34.75 0.25 3...greenspinelis not clear.Spinel D-I36 is a zincian hercynite. Chlorite. In both samplesthe chemistry of the |  | | Journal (article/letter/editorial) | | gahnite from Al-rich metasediments (27 - 28 % of hercynite, 8 % of spinel and 1 % of galaxite end member)...Zahraniční metamorfovaná sulfidická ložiska: Geco, Ontario (Spry 1982; Spry, Scott 1986); Namaqualand,...gahnite-forming reaction, Geco base-mental deposit, Manitouwadge, Ontario. Can. Mineral. 20, 549-553 |  | | Journal (article/letter/editorial) | | the structure, indicating a composition on the hercynite pleonaste boundary, while the presence of about...and green hercynite, but no clear replacement relationship is evident between the hercynite and hrgbomite...phlogopite-staurolite-cordierite schists within the Geco base-metal deposit of Ontario (Spry, 1982) appears to have formed |  | | Journal (article/letter/editorial) | | supracrustalrocksmetamorphosed to the upper amphibolitefacies.The mine sequenceat the north gold zone consistsof nodular...ratiosincreasesymmetricallyaway from the ore zone. The mine sequenceis interpreted asa metamorphosed exhala...gold deposit being mined in the Grenville province,Canada. Lead and zinc mineralization was first discovered...body of gold-silvermineralizationnorth of the old mine workings(McAdamandFlanagan,1976) andbegan mining...its characteristicsin terms of the metamorphism. District Geology tholeiitic affinity characteristicof |  | | Book | | CA 94804-1659 Earth Treasures trom the Royal Ontario Museum ie es ¥ ¥ A> i ; \ Pig era , . ... Gems«Minerals Earth Treasures from the Royal Ontario Museum Gems & Minerals reveals the beauty and splendor...and minerals from the collection of the Royal Ontario Museum in Toronto. Minerals and gems form naturally... -Gems« Minerals Earth Treasures from the Royal Ontario Museum Dr. Bicriberly Tait 20 v|Meu? FIREFLY...Photographs copyright © 2011 Royal Ontario Museum, Toronto, Ontario, Canada. All rights reserved. No part |  | | Journal (article/letter/editorial) | | the sample is a solid solution of Mgspinel and hercynite ( Mg = 0.65ÿ0.75), occasionally with small amounts...is the highest-temperature rock from from Ti-hercynite. which hoÈgbomite has been reported so far. However...oxygen, water and carbon dioxide. tion; (2) spinel-hercynite association; and (3) independent grains (Grew...Ca-amphibole + Spl + Rt + H2O + CO2 + O2 ? spinel-hercynite association, possibly the most Ged + Spr + Hog...mineral shape. Textures in sample MNV-1 as well hercynite-hoÈ gbomite association from as the Mg values |  | | Journal (article/letter/editorial) | | Al2O3 FeO MnO MgO ZnO Total Isua 36 Broken Hill 8 Geco 9 Gamsberg 8 Malene 33 n.d. 56.33 3.43 0.11 0...Greenland. Terra Nova, 10, 57ÿ62. Atkin, B.P. (1978) Hercynite as a breakdown of staurolite from within the aureole...81, 1446ÿ63. Stoddard, E.F. (1979) Zinc-rich hercynite in high-grade metamorphic rocks: A product of |  | | Report (issue) | | PAPER 69-45 GEOLOGICAL SURVEY OF CANADA DEPARTMENT OF ENERGY, MINES AND RESOURCES A CATALOGUE OF...MINERALS R. J. Traill ' GEOLOGICAL SURVEY OF CANADA CANADA PAPER 69-45 A CATALOGUE OF CANADIAN MINERALS...n's Printer, Ottawa from the Geological Survey of Canada 601 Booth St., Ottawa and Canadian Government bookshops...to change without notic e Queen ' s Printer for Canada Ottawa 1970 A CATALOGUE OF CANADIAN MINERALS...has elapsed since T . Sterry Hunt in Geology of Canada, 1863 , presented the first descriptive list of |  | Roberts, M. D., Oliver, N. H. S., Fairclough, M. C., Holtta, P. S., Lahtinen, R. (2003) Geochemical and Oxygen Isotope Signature of Sea-FloorAlteration Associated with a Polydeformed and Highly Metamorphosed MassiveSulfide Deposit, Ruostesuo, Central Finland. Economic Geology, 98 (3) 535-556 doi:10.2113/gsecongeo.98.3.535 | Journal (article/letter/editorial) | | Massive sulfide deposits in the Vihanti-Pyhäsalmi district, central Finland, are hosted by a highly deformed...massive sulfide deposits in the Vihanti-Pyhäsalmi district and exploration strategies that couple chemostratigraphy...isotope mapping is a viable exploration tool in the district and in other mineralized upper amphibolite to...districts (e.g., Manitouwadge greenstone belt, Ontario, Canada; Zaleski and † Corresponding author: e-mail...the Proterozoic Vihanti-Pyhäsalmi metallogenic district of central Finland, numerous massive sulfide occurrences |  | | Journal (article/letter/editorial) | | between the end members ZnA1204 and FeAlzO4 (hercynite), the latter making up about 313 tool%. Cr203...7n0 2o v v ~o v "~ 6o ~ ~ ao ~ ~_ Hercynite etc Fe0tot (+Mg0, Mn0} Fig. 3a, b. Chemical...phases diaspore, titanian hematite, and gahnite. Hercynite, FeAlaO4, is only present in minor amounts of...compositions were not encountered. Endmember hercynite shown in parenthesis is for referenceonly 323...Nigerite-h6gbomitespinel assemblages from Manitouwadge, Ontario and their significance (abstr). EOS Trans Am Geophys |  | | Book (volume) | | cushion cut rhodochrosite (25.56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern...promising diamond fields being vigorously explored in Canada and the United States. Experts agree that in several...diamond-bearing kimberlite bodies, most likely in Canada. Systematic large-scale mining of sapphire-bearing...operators, Morefield Mine, Amelia, VA; Max & Suzy Berchtold, Royal Rainbow Mine, Laytonville, CA; Ralph...Herndon, Center Ossipee, NH; Raymond Hietapakka, Thunder Bay, ONT; Pat Hodge, Palmer’s Trading Post, Cave-in-Rock |  | Novák, Milan, Vieira, Romeu, Lima, Alexandre, Škoda, Radek, Martins, Tania, dos Anjos Ribeiro, Maria (2009) Ferronigerite with dominant substitution TiSn−1 in muscovite+chlorite aggregate from massive quartz nodule associated with a petalite-rich aplite-pegmatite of the Barroso-Alvão pegmatite field, Northern Portugal. Neues Jahrbuch für Mineralogie - Abhandlungen, 186 (1) 67-78 doi:10.1127/0077-7757/2009/0132 | Journal (article/letter/editorial) | | staurolite, dumortierite, chrysoberyl, corundum, hercynite) is the most common. Cassiterite or gahnite and...with cordierite, gedrite, anthophyllite, spinel, hercynite, corundum, garnet, chlorite, magnetite, rutile...gahnite-forming reaction from the Geco base metal deposit, Ontario. – Canad. Miner. 20: 549–553. Van...rare-element granitic pegmatite group, northwestern Ontario. – Canad. Miner. 36: 609–635. Vrána, S. (1979): |  | Lougheed, H. Donald, McClenaghan, M. Beth, Layton-Matthews, Dan, Leybourne, Matthew (2020) Exploration Potential of Fine-Fraction Heavy Mineral Concentrates from Till Using Automated Mineralogy: A Case Study from the Izok Lake Cu–Zn–Pb–Ag VMS Deposit, Nunavut, Canada. Minerals, 10 (4) 310 doi:10.3390/min10040310 | Journal (article/letter/editorial) | | the Izok Lake Cu–Zn–Pb–Ag VMS Deposit, Nunavut, Canada H. Donald Lougheed 1, *, M. Beth McClenaghan 2...University, 36 Union St., Kingston, ON K7L 3N6, Canada; dlayton@queensu.ca (D.L.-M.); m.leybourne@queensu...L.) Geological Survey of Canada, 601 Booth St., Ottawa, ON K1A 0E8, Canada; beth.mcclenaghan@canada.ca...University, 64 Bader Lane, Kingston, ON K7L 3N6, Canada Correspondence: 5hdl@queensu.ca Received: 15 February...important facet of modern mineral exploration in Canada and northern Europe. Till heavy mineral concentrate | | | Book (volume) | | promising diamond fields being vigorously explored in Canada and the United States. Experts agree that in several...dia1nond-bearing kimberlite bodies, most likely in Canada. Systematic large-scale mining of sapphire-bearing...operators, Morefield Mine, Amelia, VA; Max & Suzy Berchtold, Royal Rainbow Mine, Laytonville, CA; Ralph...Herndon, Center Ossipee, NH; Raymond Hietapakka, Thunder Bay, ONT; Pat Hodge, Palmer's Trading Post, Cave-in-Rock...& Lorna Lukinuk, Precious Purple Gemstones, Thunder Bay, ONT; ·Earl G. Matheson, Anoraq Resources, Vancouver |
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