 | | 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...braunite, garnet, clinopyroxene, white mica and manganiandrosite) were investigated with ion and electron microprobes |  | 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) | | epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite-(Ce) BÉNÉDICTE CENKI-TOK1, 2,...androsite series. Manganiandrosite-(Ce) has dominant Mn3+ in the M1 site; it occurs at the Praborna manganese...manganese mine, Saint-Marcel, Aosta valley, Italy, in a Mesozoic eclogite-facies ophiolitic unit of the western...yellow, q orange-brown, * red-brown. Vanadoandrosite-(Ce) has dominant V3+ in M1. It occurs at the Vielle...of these new androsites suggests that khristovite-(Ce) also has significant Mn2+ on A1 and should be reanalysed |  | 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...univocally indicative of the redox conditions of CE the entire rock column of a subduction zone, from |  | | 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...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...latter magnificently developed near Praborna, at the Servette mine (Martin and Tartarotti, 1989)] points |  | 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) | | pages 1242–1253, 2020 Orthovanadate wakefieldite-(Ce) in symplectites replacing vanadium-bearing omphacite...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...therefore identified as Ca- and Y-bearing wakefieldite-(Ce) (ideally CeV5+O4). Cell parameters are in agreement |  | | Report (issue) | | Mn2+CeMn3+AlMn2+Si2O7SiO4O(OH) Manganiandrosite-(Ce) Crystal Data: Monoclinic. Point Group: 2/m. As... 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...the dumps of the Praborna Mn deposit, Saint-Marcel, Val d’Aosta, Italy, Name: The Ce analogue of manganiandrosite-(La)...epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite-(Ce). Eur. J. Mineral., 18, 569-582 |  | | 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...(catalog no. 61504). T.S.E. MANGANIANDROSITE-(CE)*, VANADOANDROSITE-(CE)* B. Cenki-Tok, A. Ragu, T. Armbruster...epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite(Ce). Eur. J. Mineral., 18, 569–582...metacherts. Manganiandrosite-(Ce) was discovered in the Praborna Mn deposit, Saint-Marcel, Val d’Aosta |  | | Journal (article/letter/editorial) | | Crystal System if M1 = Mg. Otherwise Allanite-(Ce) (Ca,Ce,La)2(Al,Fe2+,Fe3+)3Si3O12(OH) Monoclinic a proper...Monoclinic attached; the prefixes Allanite-(Y) (Y,Ce,Ca)2(Al,Fe3+)3Si3O12(OH) Monoclinic ferro and mangano...respecDissakisite-(Ce) Ca(Ce,La)MgAl2(SiO4)3(OH) Monoclinic Dissakisite-(La) Ca(La,Ce)MgAl2(SiO4)3(OH)...Ce)MgAl2(SiO4)3(OH) Monoclinic tively. The dominant Dollaseite-(Ce) CaCeMg2AlSi3O11(F,OH)2 Monoclinic cation on A2 (other...desigFerriallanite-(Ce) CaCeFe3+AlFe3+Si3O12(OH) Monoclinic nation. Table 2 shows Khristovite-(Ce) (Ca,REE)REE(Mg |  | 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...piemontite-(Sr) (new), androsite-(La) (old) = manganiandrosite-(La) (new). Before a mineral name can be assigned...epidote-group minerals such as dissakisite-(Ce), dollaseite-(Ce), khristovite-(Ce), and androsite-(La). Until 1988...identity with epidote. Withamite from the Yamanaka mine (Japan) described by Yoshimura & Momoi (1964) is |  | Bonazzi, P., Holtstam, D., Bindi, L., Nysten, P., Capitani, G. (2009) Multi-analytical approach to solve the puzzle of an allanite-subgroup mineral from Kesebol, Vastra Gotaland, Sweden. American Mineralogist, 94 (1) 121-134 doi:10.2138/am.2009.2998 | Journal (article/letter/editorial) | | Università di Firenze, via La Pira 4, I-50121 Firenze, Italy 2 Naturhistoriska riksmuseet, Box 50007, SE-104...Università di Firenze, via La Pira 4, I-50121 Firenze, Italy 4 Department of Earth Sciences, Uppsala University...Università di Bari, Via E. Orabona 4, I-70125, Bari, Italy 1 aBstract Dark-brownish, euhedral crystals of...Västra Götaland, Sweden, associated with gasparite-(Ce), chernovite(Y), rhodonite, andradite, manganoan...)(SiO4)O(OH), which is related to ferriallanite-(Ce) by the substitutional vector M3(Mn2+) → M3(Fe2+) |  | | 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) | | crystal cluster, 3 cm across, from the Machacamarca mine (Viboras Vein), near Colavi, Potosí Department,...good friend of mine, Jim Minette, worked as superintendent of a large open-pit borax mine that produced...W. E. Sheffield (fl. 1808) Chrysocolla Dalehead mine, Cumberland (Cumbria), England W. E. Sheffield was...Sowerby for study and illustration. The Dalehead mine, source of this chrysocolla, is also known as one...California and the big asbestos mine at Asbestos, Quebec, Canada. The mine at Boron produced many fine and |
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