 | | Journal (article/letter/editorial) | | high-pressure ophiolite metasediments of Praborna ore deposit (Aosta Valley, Western Alps) SIMONE TUMIATI1,*...Studi di Milano, via Botticelli 23, 20133 Milano, Italy *Corresponding author, e-mail: simone.tumiati@unimi...degli Studi di Padova, via Giotto 1, 35137 Padova, Italy 3 Equipe Géobiosphère actuelle et primitive; Institut...deposit of Praborna crops out in the Zermatt-Saas unit of the Western Alps, in the St. Marcel valley. It represents...to the bulk-rock chemistry. Compared to shales, Praborna is enriched in Mn (up to 38.7 wt% Mn2O3) and in |  | | Journal (article/letter/editorial) | | manganese concentrations at St. Marcel-Praborna, Aosta Valley, Italy: petrography and crystal chemistry...D.C., 429 Arsenopalladinite, from the Cau~ iron mine, Itabira District, Minas Gerais, Brazil, 455 ARSLAN...Broken Hill, 143 AUSTRIA, deposition and transport of gold in the Veitsch deposit, 253 Baddeleyite, new occurences...497; high in Ti from ignimbrites from the Zilan Valley, Eastern Turkey, 750 BIRCH, W.D., 143, 305 Birimian...570 BRAZIL, palladium minerals from the Cau8 iron mine, Itabira District, Minas Gerais, 455 BRIGATrl, M |  | Tumiati, Simone, Merlini, Marco, Godard, Gaston, Hanfland, Michael, Fumagalli, Patrizia (2020) Orthovanadate wakefieldite-(Ce) in symplectites replacing vanadium-bearing omphacite in the ultra-oxidized manganese deposit of Praborna (Aosta Valley, Western Italian Alps). American Mineralogist, 105 (8). 1242-1253 doi:10.2138/am-2020-7219 | Journal (article/letter/editorial) | | the ultra-oxidized manganese deposit of Praborna (Aosta Valley, Western Italian Alps) Simone Tumiati1...Studi di Milano, via Mangiagalli 34, 20133 Milano, Italy 2 Université de Paris, Institut de Physique du Globe...005)O4⸱nH2O has been found in metacherts from Praborna (Italian Alps) as micrometer-sized euhedral crystals...wakefieldite-(La) from the manganese and iron Glücksstern Mine associated with hausmannite Mn2+Mn3+ 2 O4 (Thuringia...suggested as representative of the protolith of the Praborna eclogite-facies metacherts (Tumiati et al. 2010) |  | | Journal (article/letter/editorial) | | manganese concentrations at St. Marcel-Praborna, Aosta Valley, Italy: petrography and crystal-chemistry...manganese concentrations at St. Marcel-Praborna in the Aosta Valley, Italy. These titanites arc chemically...titanite, crystal-chemistry, petrography, St. Marcel-Praborna, Italy. Introduction THE manganese concentrations...MnO) collected by de Lom (1843) from the St. Marcel-Praborna locality. Fermor (1908) also mentioned 'greenovite'...electron microprobe on greenovites from St. Marcel-Praborna, Mottana and Griffin (1979) recorded Mn contents |  | Cenki-Tok, Bénédicte, Ragu, Alain, Armbruster, Thomas, Chopin, Christian, Medenbach, Olaf (2006) New Mn- and rare-earth-rich epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite-(Ce) European Journal of Mineralogy, 18 (5) 569-582 doi:10.1127/0935-1221/2006/0018-0569 | Journal (article/letter/editorial) | | site; it occurs at the Praborna manganese mine, Saint-Marcel, Aosta valley, Italy, in a Mesozoic eclogite-facies...The locality studied, the Praborna mine near Saint-Marcel, Val d’Aosta, Italy, belongs to the eclogite-facies...Paradiso massif at the upper end of the Maurienne Valley, France (Chopin, 1978), and on the north-eastern...latter magnificently developed near Praborna, at the Servette mine (Martin & Tartarotti, 1989)] points...compositional banding of the protolith. The Praborna mine near Saint-Marcel is a classical locality from which |  | Cabella, Roberto, Basso, Riccardo, Lucchetti, Gabriella, Marescotti, Pietro, Martinelli, Alberto, Nayak, Virendra Kumar (2003) Squawcreekite-rutile solid solution from the Kajlidongri Mine (India) European Journal of Mineralogy, 15 (2) 427-433 doi:10.1127/0935-1221/2003/0015-0427 | Journal (article/letter/editorial) | | Squawcreekite-rutile solid solution from the Kajlidongri Mine (India) ROBERTO CABELLA1*, RICCARDO BASSO1, GABRIELLA...Università di Genova, Corso Europa 26, I-16132 Genova, Italy * Corresponding author, e-mail: cabella@dipteris...recognised in quartz veins from the Kajlidongri manganese mine District Jhabua, Madhya Pradesh (India): this finding... U.S.A), the Esperansa tin mine (Durango, Mexico), and the Olimpiada gold deposit (Enisei Ridge, Russia)...is Fe3+, Mn3+, Al). In rutile from St. Marcel-Praborna, Italy, Smith & Perseil (1997) recognised that |  | | Catalog/List | | grey mass with Actinolite, large 2x3 inch ..Bastnas Mine Sweden £30 12. SCAPOLITE completely clear single...NATIVE GOLD seven or eight micro spots on small quartz crystals, possibly some with faces. lxl Mine, Washoe...on lxl inch matrix Arizona USA £18 · Inspiration mine, Gila County, 21. HAMBERGITE chalky-white crystalline...tabular twinned crystal about 1cm size ( Telino Mine, Linopolis, Minas Gerais Brazil) £25 . 1'fa Be PO4...TITANITE variety "Greenovite" (Praborna Mine, St Marcel, Aosta Italy) pink vein about 3mm wide and 3cm |  | | Catalog/List | | with micro Sphalerite on 2x2 matrix Lers Malines Mine, Gard, France £20 4. BENTORITE a very rare, Cr containing...mineral as a single crystal like this £30 . Koksha Valley, Badakshan, Afganistan 7. SCOLECITE single terminated...crystals, possible Dickite micros too. Panteg-y-Gaseg Mine, Amlwch Anglesey, Wales £18 I 0. PENNANTITE small...matrix. Plates are about I to 1.5 mm size (Benallt Mine,Lleyn, Wales) £30 11. BOURNONITE good blocky grey...crystals,. all over 2.5 x2.5 inch surface Likasi Mine, Katanga Congo £25 14. SIDERITE rich red-brown |  | | Catalog/List | | 1077 ■ ALLOPHANE Hawkswood Mine, Cornwall 220 ■ CLINOSAFFLORITE Capitol Mine. Gowganda, Ontario.Canada...£3 lx2£6 CurichAdamile 766 ■ DIOPTASE Christmas Mine, Gila County, Arizona ,USA Green elongated micro...lxl£6 CuSi0 .. - - -- -·- 131 ■ DOLOMITE Carrock Mine, Caldbeck Fells, Cumbria FERROAN DOLOMITE, rich...massive lxl £1 lx2 £2 2x2 £5 104 ■ EMMONSITE Bambolla Mine, Moctezuma, Mexico Green crusts on matrix. quite...sandstone lxl £3.50 1140 ■ ERYTHRITE Skutterud Cobalt Mine. Vikersund Norway Pink coating on schist. quite |  | | Journal (article/letter/editorial) | | Tungsten-bearing rutile from the Kori Kollo gold mine, Bolivia C. M. R~CE, K. E. DARKE, J. W. STILL...hydrothermal fluids in the oxide zone of the Kori Kollo gold deposit. The futile shows sector zoning in basal...fluids. KEYWORDS-" tungsten, rutile, jarosite, gold deposits, Bolivia. Introduction TUNGSTEN-BEARING...W-bearing rutile have been reported. In the Hemlo gold deposit, Ontario, Canada (Harris, 1986) rutile occurs...hydrothermal alteration zone at the Kori Kollo gold mine, Bolivia. 9 1998 The Mineralogical Society Geological |  | | Journal (article/letter/editorial) | | found at Hashupa and at Alchuri, in the Shigar Valley, Northern Areas, Pakistan (Blauwet 2006). • Good...striated epidotes in matrix, from the Calumet iron mine, Colorado. Epidote was described in 1801 by Haüy...collectors. Within the United States, the Green Monster mine, Prince of Wales Island, Alaska, has yielded superb...quartz (Leavens and Thomssen 1977); the Calumet iron mine, Chaffee County, Colorado, is a notable locale for...quartz and yellow-green titanite, from the Capelinha mine, Minas Gerais, Brazil, are relatively inexpensive |  | | Journal (article/letter/editorial) | | chemistry of roméite from the type locality Praborna (Italy), from Massiac (France), and from four newly...discovered by Damour (1841) in the Praborna mine (Piemont, Italy) and named in honor of French mineralogist...mineralogist Romé de l’Isle (1736–1790). Although the Praborna roméite was originally described as CaSb32 O4...description: (1) Sample MGL37726 from Praborna, Piemont, Italy. (2) Grain FI10/c, Fianel, Val Ferrera...Na2O CaO MnO UO2 PbO F OH )(OH,F) 2 Fianel 15 1 Praborna 7 Analysis N° Deposit Pointsb Table 2 Selected |  | | Catalog/List | | pinkish fine grained mass in Calcite.(Dark Star Mine,Ravalli County, Montana USA) 1 x 14 £2.50 1x1 £4...guite rich black masses in matrix (Union Carbide Mine, Wilson Springs Garland County, Arkansas USA) 1x1...fairly sparse, green crusts on matrix. (San Miguel Mine Moctezuma Mexico) 1cm piece £ 5 5mm £3 WITH UNUSUAL...CO/3 0 Quite rich yellow crusts on matrix. (Outpost Mine, San Domingo Wash Maricopa County Arizona) Ixliins...MINERAL !I dark red micro's on matrix. (Getchell Mine,Humboldt Co . Nevada USA) 5mm £4 up to 1.5cm £7 |  | | Report (issue) | | a = 9.51 Z=8 X-ray Powder Pattern: Vermilion mine, Sudbury, Canada. 2.85 (100), 1.674 (80), 1.820...00 (1) Vermilion mine, Sudbury, Canada; contains trace chalcopyrite. (2) Friday mine, Julian, California...USA, from the Friday mine, Julian, San Diego Co., California; the Key West mine, Clark Co., Nevada; the...the Copper King mine, Gold Hill district, Boulder Co., Colorado; the Lick Fork deposit, Floyd Co., Virginia;...Virginia; and the Gap Nickel mine, Lancaster Co., Pennsylvania. In Canada, from the Vermilion, Levack |  | | Journal (article/letter/editorial) | | Oberhalbstein, Switzerland (Geiger 1948), at Praborna in the Aosta Valley, Italy (Martin-Vernizzi 1984, Perseil 1991)...1991), and in the Ligurian Alps, Italy (Cortesogno et al. 1979), in other chert-hosted deposits in the...1993), in sandstone-hosted deposits at the Kombat mine, Namibia (Dunn 1991); and in carbonate-hosted deposits...metamorphism. REGIONAL GEOLOGY Val Ferrera, a high valley with the source of a tributary to the Rhine in...Fianel 3: Starlera 4: Bergwiesen SP Val Ferrera Italy Thusis 3 2 1 SB 4? SP ? ? S A 20 km ? |  | | Journal (article/letter/editorial) | | transport through two mixing zones affected by acid mine drainage near Silverton, Colorado— Laurence E. Schemel...pyrite and secondary weathering phases, Mother Lode gold district, Tuolumne County, California— Kaye S. Savage...1085 1097 Comparative analysis of sulfides for gold using SXRF and SIMS— I.M. Steele, L.J. Cabri, J...Rare sulfosalts from Vulcano, Aeolian Islands, Italy. III. Wittite and cannizzarite—Yu S. Borodaev, A...manganiferous deposits from St. Marcel– Praborna, Val d’Aosta, Italy—E.-A. Perseil, P. Blanc, and D. |  | | Catalog/List | | lx2 £2 lxl£3 2x2£12 lx2£5 lxl £1 ----· Hawkswood Mine, Cornwall ANDALUSITE Cabracao, Minl10, Portugal...Andalucia Spain. Type Location New East Whcal Russell mine, Devon ,England 140 grey bleby small botryoidal..._lx2_ _80 _ _____ _,o 1129 ALMANDINE Braslad iron Mine near Arendal ,Norway Unknown location I 1 63 □a...lxl£2 2x3£6 3x4£8 feldspar ALSTONITE Fallowfield Mine, Northumberland ANDRADITE Grua. Oppland Norway 5...2x3£15 Gamet ½" £3 ALTHAUSITE ANDRADITE Benallt Mine,Lleyn ,Wales Modum, Buskerud,Norway 975 44 Brown-purple |  | | Journal (article/letter/editorial) | | he co-authored the book Micro Minerals of Mont Saint-Hilaire, Québec with Dr. Robert Fisher (1923–2000)...been set up with a field trip to the Bagdad Chase mine on Sunday morning, but it was decided later to shorten...proceed further. While at a volcanology meeting in Italy, Bill met Prof. Glovanna Vazzalini at the University...held forth on Mineral Collecting in Germany and Italy. An audience member noted that his scenic photography...comparing some of its minerals to those from Mont Saint-Hilaire. Julian Gray followed with a report on the |  | | Catalog/List | | crystals on dar~ matrix. (not radioactive) (Leonie Mine, huerbach, Oberpfal Genany) Sto 10mmf3 l/2in;; ES...Silicate pinkish massiv~ with black Allanite (Bastnas Mine, Riddarhytt2n Vastm~~l2nd,Sw2deri) Cu/2 Se 039...(Ti Nb 0 rich black nasses in matrix (Karnasurt Mine, Revda, Kola Peninsula, Russia) lxl E2.50 lx2 ins...PO/~ • yellowish plates on mauvEUssingit~ (UmDa Mine, Reuda, Kola Peninsula • Russia) (6a pure plate...Group) rich fawnmassive. Xrayed meial. (Sjogruvan Mine, Grythyttan, Sweden) lxl fl.50 lx2 E3 2x2 E6 053 |  | Armbruster, Thomas, Bonazzi, Paola, Akasaka, Masahide, Bermanec, Vladimir, Chopin, Christian, Gieré, Reto, Heuss-Assbichler, Soraya, Liebscher, Axel, Menchetti, Silvio, Pan, Yuanming, Pasero, Marco (2006) Recommended nomenclature of epidote-group minerals. European Journal of Mineralogy, 18 (5) 551-567 doi:10.1127/0935-1221/2006/0018-0551 | Journal (article/letter/editorial) | | dell’Università di Firenze, Via La Pira 4, I-50121 Firenze, Italy 3Department of Geoscience, Faculty of Science and...Università di Pisa, Via S. Maria 53, I-56126 Pisa, Italy Abstract: Epidote-group minerals are monoclinic...identity with epidote. Withamite from the Yamanaka mine (Japan) described by Yoshimura & Momoi (1964) is...Fouquéite = Piemontite (Bourg Clinozoisite (St. Marcel) d’Oisans) (Sri Lanka) SiO2 36.49 38.6 38.64 22... epidote-related mineral from Praborna mine, St. Marcel, Aosta Valley, in the Italian Western Alps, was |  | | Catalog/List | | 6elect the Just give to discuss and Wellsite Gold from Russia, page 9 . Gorgeyit pag 4 Hollandite...matrix mostly with Alstonite micro's (Fallowfield Mine, Hexham) 1 x ~ ins El.50 lxl E3 lx2 ES 072 BISHUTHINITE...Pb Sb O OH yellow masses on Quartz. (Trevinnick Mine, near Port Issac Cornwall) lxl .El lx2 El.90 504...118 CONICHALC TE rich green botryoidal on matrix. (Gold Hill Hine, Tooele County) Utah, USA) lxl E2.50 lx2...species) green crusts on rock. (Childs Aldwinkle Mine, Pinal County, Arizona USA\ lxl E3 lx2 f5 2x2 ElO |  | | Catalog/List | | massive with minor Celsian and Bementite from Benallt Mine, Lleyn, Wales, (Recently tested by XRD) lxl £4 lx2...£15 £6 88 ADAMITE Ojuela Mine, Mapimi, Mexico 1036 ALSTONITE Fallowfield Mine, Northumberland Colourless...x2 £ 1.50 2x2 £3 Al SO/4 767 ■ AJOITE Christmas Mine, Gila County, Arizona USA 14 ALUMINITE Railway cutting...~-------·-·-- ·· -·· 1077 ■■ ALLOPHANE Hawkswood Mine, Cornwall 933 ANATASE Hingston Quarry,Cornwall Black...Kola Russia 501 ALLOPHANE New East Wheal Russell mine, Devon ,England grey bleby small botryoidal with |  | | Catalog/List | | ___ 2x2£3 ___ - -----~ - ~014_ _ 88 ADAMITE Ojuela Mine, Mapimi, Mexico 69 ALUMOHYDROCALCITE South Bay,...- - --··---- - - - - - · . 767 AJOITE Christmas Mine, Gila County, Arizona USA 17 ANAL CITE Talisker...North Sweden 501 ALLOPHANE New East Whcal Russell mine, Devon ,England variety VIRIDINE (Mangan rich variety)...217 ANDORITE San Jose Mine, Oruro, Bolivia 1129 ■ ALMANDINE Brnstad iron Mine near Arendnl ,Norway Pure...Bcnallt Minc,Llcyn. Wales 1036 ALSTONITE Fnllowlielcl Mine, Northumberland White masses in malrix wilh micro |  | | 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...fi1icaeousscales on matrix a (St M~rcel, Val d'Aosta Italy) W 1J:1 7Cp 1x2 f 1. 30 2x2 :t3. 00 brc~n ~~ss...yellow pea size masses &crusts on Quartz (les Anglais Mine, Massiac,Brouse France) lxl 60p 1x2 fl.10 56 BIOTITE...61 BORNITE rich purple mass in matrix.(Gortdrum Mine, Tipperary S.Ireland) location closed. lxl 50p 1x2...BOULANGERITE grey masses in and on matrix.(Melba Mine, N.E.Dundas Tasmania) lxl !1.90 1x2 !4.00 64 BOULANGERITE |  | Agangi, Andrea, Reddy, Steven M., Plavsa, Diana, Fougerouse, Denis, Clark, Chris, Roberts, Malcolm, Johnson, Tim E. (2019) Antimony in rutile as a pathfinder for orogenic gold deposits. Ore Geology Reviews, 106. 1-11 doi:10.1016/j.oregeorev.2019.01.018 | Journal (article/letter/editorial) | | Antimony in rutile as a pathfinder for orogenic gold deposits Andrea Agangi, Steven M. Reddy, Diana Plavsa...Antimony in rutile as a pathfinder for orogenic gold deposits, Ore Geology Reviews (2019), doi: https://doi... Antimony in rutile as a pathfinder for orogenic gold deposits Andrea Agangi1,2, Steven M. Reddy1, Diana...Australia aagangi@uj.ac.za Key words: Gold, antimony, orogenic gold deposit, indicator mineral, exploration...applicability of rutile as a pathfinder for orogenic gold deposits, which are an important source of this |
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Praborna Mine, Saint-Marcel, Aosta Valley, Italy