 | | 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) | | at the Praborna mine near Saint-Marcel, Val d’Aoste, Italy, and in the upper Maurienne Valley, France...calcite, bustamite, magnetite. 10. Eclogite facies, Praborna, W. Alps (Martin and Kienast, 1987); with hematite...Delinesti, Romania, with spessartine, aegirine, pyrophanite, hematite, etc (wetchemical analyses, H^artopanu...Maurienne Valley, France (Chopin, 1978), on the western tip of the Gran Paradiso massif. The Saint-Marcel...Saint-Marcel locality is the famous Praborna mine, in Val d’Aosta, Italy, on the north-eastern flank of the Gran |  | 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...with minor calderite, spessartine, hematite and pyrophanite. The structural formula is A1[Mn2+0.60Ca0.40]...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 |  | Tumiati, Simone, Godard, Gaston, Martin, Silvana, Malaspina, Nadia, Poli, Stefano (2015) Ultra-oxidized rocks in subduction mélanges? Decoupling between oxygen fugacity and oxygen availability in a Mn-rich metasomatic environment. Lithos, 226. 116-130 doi:10.1016/j.lithos.2014.12.008 | Journal (article/letter/editorial) | | Milano, via b NU Mangiagalli 34, I-20133 Milano, Italy; simone.tumiati@unimi.it Institut de Physique du...degli Studi di Padova, via Giotto 1, 35137 Padova, Italy d Dipartimento di Scienze dell’Ambiente e del...Scienza 4, 20126 Milano, Italy CE ABSTRACT The manganese ore of Praborna (Italian Western Alps) is...on this dataset and the observed assemblages at Praborna, thermodynamic calculations show that these mélange...with care. From the study of mélange rocks at Praborna, the distribution of oxygen at subduction zones |  | 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) | | MANGANIFEROUS DEPOSITS FROM ST. MARCEL – PRABORNA, VAL D’AOSTA, ITALY ELENA-ADRIANA PERSEIL Laboratoire...manganiferous deposit at the St. Marcel – Praborna mine in the Val d’Aosta, Italy. Three types of fluorapatite...electron-microprobe analysis, arsenic, quencher, St. Marcel – Praborna, Italy. SOMMAIRE Nous décrivons d’importantes...concentrations manganésifères de la mine de St. Marcel – Praborna dans le Val d’Aoste, Italie. Trois types...effet d’inhibition de la luminescence, St. Marcel – Praborna, Italie. INTRODUCTION Arsenic-bearing apatite |  | | Report (issue) | | X-ray Powder Pattern: Praborna Mn deposit, Saint-Marcel, Val d’Aosta, Italy. [calculated pattern] 2...0.07 [1.45] 96.59 (1) Praborna Mn deposit, Saint-Marcel, Val d’Aosta, Italy; average of 4 electron microprobe...hematite, pyrophanite. Distribution: From the dumps of the Praborna Mn deposit, Saint-Marcel, Val d’Aosta...d’Aosta, Italy, Name: The Ce analogue of manganiandrosite-(La). An epidote-group mineral in which Mn2+ is |  | | Journal (article/letter/editorial) | | Ködnitz Valley, Eastern Alps; Abrecht (1990); Graubünden, Central Alps; Geiger (1948); Praborna and Val...grade (Gonzen, Val Graveglia) to eclogitic facies (Praborna). They developed complex assemblages of metamorphic...domain. The Turtmanntal, a tributary to the Rhone Valley in Canton Wallis, Western Switzerland, belongs...et al. 1987; Fig. 1). In the upper part of the valley, the pre-Mesozoic crystalline rocks of the “Ensemble... crossed polars. (f) Spessartine (Sps) with pyrophanite. The numerous inclusions in spessartine are fluorapatite |  | | 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) | | that was investigated is found at the Byrud emerald mine, in Eidsvoll, Akershus, southern Norway. The mineralization...pegmatite in the upper reaches of the Petreliusa River valley, Khibiny alkaline massif, Kola Peninsula Russia... was discovered in the Praborna Mn deposit, Saint-Marcel, Val d’Aosta, Italy, which belongs to the eclogitic...friedelite, and humite-group minerals. The Praborna mine is the type locality for roméite, piemonite...Manganiandrosite-(Ce) was collected on the dumps of the mine and occurs as elongated grains a few tens of micrometers |  | | 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) | | metasedimentary succession from southern Apennines (Italy): Genesis constraints T ⁎ Rosa Sinisia, , Giovanni...Basilicata, viale Ateneo Lucano 10, 85100 Potenza, Italy Dipartimento di Biologia, Ecologia e Scienze della...Calabria, via P. Bucci, 87036 Arcavacata di Rende, Italy A R T I C L E I N F O A B S T R A C T Keywords:...Apennines (at Mormanno site, Calabria-Lucania border, Italy). The mineralization mainly consists of three types...deposit from southern Apennines (at Mormanno site, Italy), extensively exploited until the 70s and here described |  | | Catalog/List | | mass. small pale blue crystals on matrix. Benallt Mine,Lleyn ,Wales lxl £5 lx2 £8 Parclho, Pariba,Brazil)...Parnmirim Region, Agua Quen1a,Bal1ia, Brazil Benallt Mine, Llcyn Wales A)£3 B) £5 3mm £4 5mm £6 lxl £6...micros gemmy yellow-green crystal section. Bcckermet Mine. Cumbria lxl £2 131 40 BARYfES 211 BRAZILIANITE...Goldstrike Pit, Elko,Nevada. U.S.A Divino des Laranjeiras Mine, Minas Gerias,Brazil Magnet Cove,Arkansas,USA ½...Comwall Wagholi Quarry,Poona,India lxl £3 Funauchi Mine, Aikta Prefecture.Japan Venice Dome, Lousiana, U |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | (Na), corundum (Al), wollastonite (Ca, Si), pyrophanite (Ti), magnetite (Fe). For REEs and Nb the standards...but higher than those reported from Tre Croci, Italy (Della Ventura et al., 1999). The highest values...from Tre Croci, Vico Volcanic complex (Latium, Italy). Min. Mag. 63 (1), 123 – 130. 142 J. Hode Vuorinen...manganese concentrations at St. Marcel-Praborna, Aosta Valley, Italy: petrography and crystal chemistry |  | | Journal (article/letter/editorial) | | it is relatively common at the nearby Jakobsberg mine, another deposit of LaÊngban type (Holtstam and...composition used included 4 mol.% ilmenite, 1 mol.% pyrophanite and 1 mol.% corundum. Densities to the nearest...and Suzuki, Y (1996) RomeÂite from the Gozaisho mine, Iwaki, Japan. , , 155ÿ160. McSwiggen, P.L., Morey...and apuanite, 2 new minerals from the Apuan Alps, Italy. , , Êngban: the La Mines, their Minerals, Geology...the manganese concentrations at St Marcel-Praborna, Aosta Valley, Italy: Petrography and crystalchemistry |  | Krmíček, Lukáš, Cempírek, Jan, Havlín, Aleš, Přichystal, Antonín, Houzar, Stanislav, Krmíčková, Michaela, Gadas, Petr (2011) Mineralogy and petrogenesis of a Ba–Ti–Zr-rich peralkaline dyke from Šebkovice (Czech Republic): Recognition of the most lamproitic Variscan intrusion. Lithos, 121 (1) 74-86 doi:10.1016/j.lithos.2010.10.005 | Journal (article/letter/editorial) | | the newly recognized lamproite swarm from Damodar Valley, India (Mitchell and Fareeduddin, 2009). Generally...recognised in the Mediterranean area, mainly from Spain, Italy, Serbia and Macedonia (e.g. Duggen et al., 2005;...Liferovich, R.P., 2004. Ecandrewsite–zincian pyrophanite from lujavrite, Pilansberg alkaline complex,...manganese concentrations at St. Marcel-Praborna, Aosta Valley, Italy; petrography and crystal-chemistry |  | Dill, Harald G., Weber, Berthold, Melcher, Frank, Wiesner, Werner, Müller, Axel (2014) Titaniferous heavy mineral aggregates as a tool in exploration for pegmatitic and aplitic rare-metal deposits (SE Germany) Ore Geology Reviews, 57. 29-52 doi:10.1016/j.oregeorev.2013.08.023 | Journal (article/letter/editorial) | | aggregates IIIa small rivulets Magnetite, ilmenite (pyrophanite), rutile, anatase, Stability field of hematite...in the ilmenite group minerals under study, pyrophanite [MnTiO3] does so (Feenstra 40 H.G. Dill et...the melt, while a stronger enrichment of the pyrophanite component in ilmenite is explained by hydrothermal...2002. The mineralized veins and the impact of old mine workings on the environment at Segura, central Portugal...manganese concentrations at St. Marcel-Praborna, Aosta Valley, Italy: petrology and crystal chemistry |  | | Journal (issue) | | Donato, Italy macco.marchesini@agip.it Renato Pagano Casella Postale 37 1-20092 Cinisello, Italy renpagan@tin...Province, Northern Italy. 1— Cassagna mine 2—Gambatesa mine 3— Molana quarry 4— Molinello mine 5— Monte Bardeneto...Bianco copper mine 7— Monte Bossea mine 8— Monte Coppello-Reppia prospect 9— Monte Porcile mine 10— Nascio...Nascio 11—Scrava mine 12— Pontori Prospect h CD ^ .L IG iU R IA f \ ( I A X , X. LA SPE^IA [ / ,...manganese district of Val Graveglia in northern Italy produced over one million tons of high-grade ore |  | | Book (edition) | | MINE andtheir LOCALITIES JAN H. BERNARD AND JAROSLAV HYRSL INERALS DESCRIBED SINCE 2004 MINERALS...dist., China Fluomatromicrolite, x 25111111, Naipa mine, Mozambique Daliranite, 5111111, Zarshouran Au-As...Domafov, Czech Rep. Juangodoyite, 60111111, Santa Rosa mine, Chile Back cover photo: Ho/fertile on hematite...piment pseudomo,phs after realga,; 75 mm, Palomo mine, Pen, Page 3: Stepite on arsenic, 45 111111,Jachymov...Saint Sainte island mount, mountain Mts. R. Penin. Vole |  | | Journal (issue) | | San Pedro Mine in Santa Fe County, and along with his son Phillip is actively exploring the mine for minerals...minerals. The San Pedro Mine is perhaps best known for producing beautiful specimens of finely crystalline...Phillip have also developed a surface exposure at the mine to produce some very nice, single, sceptered quartz...ci rc ulatio n for some years. Sulfides are real mine rals and I still regret no t buy ing a good specimen...came from the Ortiz Mine (Cunningham Gulch) around 19845. The Ortiz mountains and mine are just a few miles |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...(island), Vole. (volcano), Penin. (peninsula), St. (Saint), Ste. (Sainte). Recent developments in many countries...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO...Harding Co .. South Dakota. and at the Fuemrole No2 mine, Emery co .. Utah. Also at Menzenschwand Scbwarzwald...mainly in crystals to 5 cm at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical |  | | Report (volume) | | according to the type locality Piemont in Northern Italy. The first Cr rich epidote occurrence was described...in zoisite; sample HU93-8 from Sterzing, Tauern/Italy; photomicrograph with crossed polarized light (c)...REE-bearing piemontite from Monte Brugiana, Alpi Apuane, Italy. Eur J Mineral 4:23–34 Bonazzi P, Menchetti S (1995)...the epidote group, from Val Graveglia, Liguria, Italy. Eur J Mineral 2:519-523 Bonazzi P, Menchetti S...Cordier L (1803) Analyse du Minéralconnu sus le nom de Mine de Manganese violet du Piédmont, faite au Labratoire |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Short Hills, New Jersey. Renato Pagano: Milan, Italy. Ole V. Petersen: Geologisk Museum, Copenhagen,...Spotsylvania Co., and Partridge mine, Orange Co., VA, and at Dahlonega, GA; Homestake mine, Lawrence Co., SD; Silver...Lake Co., Breckenridge(*), Summit Co., Ground Hog mine(*), Gilman Co., Silverton and Telluride, San Juan...Mohave and Cochise Cos., AZ; Elmore, Idaho, and Valley Cos., ID; Goldfield, Esmer- 444.2 Silver 3...Ledge mine, Nevada Co., Jamestown, Tuolumne Co., Colorado quartz mine, Mariposa Co., Bonanza mine, Trinity |
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Praborna Mine, Saint-Marcel, Aosta Valley, Italy