 | | Report (issue) | | SrMn6 4+Mn2 3+O16 Strontiomelane Crystal Data: Monoclinic. Point Group: 2/m. Physical Properties: Cleavage:...9.88(1) X-ray Powder Pattern: Praborna Mn deposit, Aosta Valley, Italy. 3.15 (100), 3.13 (80), 2.409...83 0.17 1.39 12.77 97.80 (1) Praborna Mn deposit, Aosta Valley, Italy; electron microprobe analysis;...Distribution: From the Praborna Mn deposit, 5 km south of Saint-Marcel, Aosta Valley, Italy. Name: The strontium...Perseil, J. Brugger, and P.-J. Chiappero (1999) Strontiomelane, SrMn 6 4+Mn 2 3+O16, a new mineral species |  | | Journal (article/letter/editorial) | | Fransolet Heinz-JuÈrgen Bernhardt Hollandite±strontiomelane solid solutions coexisting with kanonaite and...member, this is also the second occurrence of strontiomelane. The coexisting ``viridine'' (= kanonaite)...been documented in the famous Saint-Marcel mine, Praborna, Aosta Valley, Italy (Perseil 1988), in the Falotta...braunite ores from Maritime Alps and Eastern Liguria, Italy (Cabella et al. 1995) and from the Sanbagawa metamorphic...(Banno 1996). Moreover, in 1999 the new mineral strontiomelane, in which Sr has the prevailing role among |  | | 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...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 |  | | Journal (article/letter/editorial) | | the manganese concentrations St. Marcel-Praborna, Aosta Valley, Italy: petrology and crystal-chemistry...0.2 Sb 5§ per O = 2) from St. Marcel-Praborna in the Aosta Valley, Italy, were re-examined. These compositions...rom6ite, crystal-chemistry, petrology, St. Marcel-Praborna, Italy. Introduction Tins article examines in...manganese concentrations at St. Marcel-Praborna, Val d'Aosta, Italy. A substantial bibliography concerning...late stages of retrograde metamorphism at St. Marcel-Praborna, seems to be rather unusual. The presence of |  | | Journal (article/letter/editorial) | | Università di Pisa, Via S. Maria 53, I-56126 Pisa, Italy *Corresponding author, e-mail: pasero@dst.unipi...Mitchell et al. (2000) Cryptomelane Manjiroite Strontiomelane Priderite group (M4þ ¼ Ti) Priderite Redledgeite...as I2/m (e.g., cryptomelane) or P21/n (e.g., strontiomelane). The lowering of symmetry may be related to...al., 1987) and Montaldo di Mondovı̀, Piedmont, Italy (Cabella et al., 1992). The crystal structure of...described by Nambu & Tanida (1967) from the Kohare mine, Iwate Prefecture, Japan. Its chemical composition |  | 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 |  | | Journal (article/letter/editorial) | | (Banno 1996). Strontiomelane, a Sr-analogue of hollandite, was recently reported from the Praborna Mn deposit...deposit, Italy (Meisser et al. 1999). This occurrence shows that, in addition to epidote-group minerals,...second report following the type crystal from Woods mine, Australia (Kawachi et al. 1996). Aggregates of...5, 1.5, 4.8, and 0.4 wt%, respectively, and strontiomelane (Sr), coronadite (Pb), cryptomelane (K) and...respectively. Some grains can be classified as strontiomelane (Fig. 4b). TiO2, Al2O3, and Fe2O3 contents |  | 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 |  | Biagioni, Cristian, Capalbo, Carmen, Lezzerini, Marco, Pasero, Marco (2014) Ferrihollandite, BaMn4+6Fe3+2O16, from Apuan Alps, Tuscany, Italy: description and crystal structure. European Journal of Mineralogy, 26 (1) 171-178 doi:10.1127/0935-1221/2013/0025-2353 | Journal (article/letter/editorial) | | Ferrihollandite, BaMn4þ6Fe3þ2O16, from Apuan Alps, Tuscany, Italy: description and crystal structure CRISTIAN BIAGIONI*...Università di Pisa, Via S. Maria 53, 56126 Pisa, Italy *Corresponding author, e-mail: biagioni@dst.unipi...hydrothermal ores from Vagli, Apuan Alps, Tuscany, Italy, on the basis of chemical and X-ray diffraction...oxides, crystal structure, Apuan Alps, Tuscany, Italy. describe a phase having Ba2þ as dominant tunnel...al., 1996) and mannardite from the Monte Arsiccio mine (Biagioni et al., 2009a). Fig. 1. Ferrihollandite |  | | 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...minerals. The Praborna mine is the type locality for roméite, piemonite and strontiomelane. Manganiandrosite-(Ce)...Manganiandrosite-(Ce) was collected on the dumps of the mine and occurs as elongated grains a few tens of micrometers |  | Chukanov, Nikita V., Aksenov, Sergey M., Jančev, Simeon, Pekov, Igor V., Göttlicher, Jörg, Polekhovsky, Yury S., Rusakov, Vyacheslav S., Nelyubina, Yuliya V., Van, Konstantin V. (2016) A new mineral species ferricoronadite, Pb[Mn4+6(Fe3+,Mn3+)2]O16: mineralogical characterization, crystal chemistry and physical properties. Physics and Chemistry of Minerals, 43 (7) 503-514 doi:10.1007/s00269-016-0811-z | Journal (article/letter/editorial) | | The new mineral was collected in the Babuna River valley, in talus at the bottom of the Kalugeri Hill. It...00(Mn7.58Al0.15V0.14Fe0.07 Mg0.06)O16 from the Imiter mine, Morocco, and (c) cryptomelane (K0.6Na0.15Ba0.05)(Mn7...mode. Raw data were integrated using the program SAINT and scaled, merged and corrected for Lorentz-polarization...Ankangite from the Monte Arsiccio mine (Apuan Alps, Tuscany, Italy): occurrence, crystal structure, and...Ferrihollandite, BaMn64+Fe23+O16, from Apuan Alps, Tuscany, Italy: description and crystal structure. Eur J Mineral |  | | Journal (issue) | | prachtige rhodochrosietskalenoëders van de N’Chwaning Mine (ZuidAfrika). Alleen het rond brilliantslijpsel...12 cm breed, 15 cm dik en 12 cm hoog – van Kunar Valley (Afghanistan), met centraal in het diepblauwe kristal...(Afghanistan) en de klassiekers van de Himalaya Mine (Pala, California) vertegenwoordigd. Ere wie ere...aggregaatje van rhodochrosiet. Veldbreedte 3 mm. Gambatesa mine, Val Graveglia, Italië. Verzameling en foto R. Bracco...studie van mangaanafzettingen elders in Italië (bv. Praborna, waar in 1853 piemontiet werd ontdekt), bleef |  | | 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 |  | | Journal (issue) | | Articles Large barite crystals from the Elandsrand gold mine, South A fr ic a ................................. Lyckberg Prehnite from La Combe de la Selle, Saint Christophe-en-Oisans, Isere, France...............Paterson (NJ), Brumado district Museum, Himalaya mine $10 (Brazil), Bosch Collection $10 v.9/#5 Turkish...(PA-MD), Mcguinnessite v Pereta Mine (Italy), Cetine Mine (Italy) v Mineral Fraud, LeadhillsWanlockhead...$10 v .15/#5 Jacupiranga mine (Brazil), Jensen quarry (CA), Cunha Baixa mine, Paulkerrite $10 .16/#4 |  | | 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 |  | | 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 |
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Praborna Mine, Saint-Marcel, Aosta Valley, Italy