 | | Journal (article/letter/editorial) | | 47â68 DOI 10.1007/s00710-006-0146-4 Coexisting calderite and spessartine garnets in eclogite-facies metacherts...at the Praborna mine near Saint-Marcel, Val dâAoste, Italy, and in the upper Maurienne Valley, France...coexisting euhedral garnets (10â100 mm in size for the calderite to mm-size for spessartine) to sharp overgrowths...garnet, between yellow spessartine and yellow calderite, and is only revealed by back-scattered electron... 48 B. Cenki-Tok and C. Chopin Introduction Calderite, Mn3 Fe3ĂŸ 2 Si3 O12 , is the manganese ferric |  | | 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 GeÌobiospheÌre 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 |  | Cenki-Tok, BĂ©nĂ©dicte, 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...are rhodochrosite and Mn-pyroxenoid, with minor calderite, spessartine, hematite and pyrophanite. The structural...The locality studied, the Praborna mine near Saint-Marcel, Val dâAosta, 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 mĂ©langes? 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 dellâAmbiente 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 mĂ©lange...with care. From the study of mĂ©lange rocks at Praborna, the distribution of oxygen at subduction zones |  | | Report (issue) | | X-ray Powder Pattern: Praborna Mn deposit, Saint-Marcel, Val dâAosta, Italy. [calculated pattern] 2...0.07 [1.45] 96.59 (1) Praborna Mn deposit, Saint-Marcel, Val dâAosta, Italy; average of 4 electron microprobe...Tephroite, Mn-pyroxenoid, hematite, calderite; or spessartine, calderite, hematite, pyrophanite. Distribution:...Distribution: From the dumps of the Praborna Mn deposit, Saint-Marcel, Val dâAosta, Italy, Name: The Ce analogue of |  | 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 UniversitĂ© de Paris, Institut de Physique du Globe...005)O4âž±nH2O has been found in metacherts from Praborna (Italian Alps) as micrometer-sized euhedral crystals...wakefieldite-(La) from the manganese and iron GlĂŒcksstern 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) | | 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 dâAosta, Italy, which belongs to the eclogitic...friedelite, and humite-group minerals. The Praborna mine is the type locality for romĂ©ite, 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) | | 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) | | found at Hashupa and at Alchuri, in the Shigar Valley, Northern Areas, Pakistan (Blauwet 2006). âąâGood...striated epidotes in matrix, from the Calumet iron mine, Colorado. Epidote was described in 1801 by HaĂŒy...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 |  | | 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 |  | | 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]âą6HzO...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 4:23â34 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 MinĂ©ralconnu sus le nom de Mine de Manganese violet du PiĂ©dmont, faite au Labratoire |  | | Journal (article/letter/editorial) | | hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is ïŹrst and foremost recognized...According to the Raw Materials Group (Sweden), the world mine production in 2005 stood at 19.3 m t metal content...mining company. âą World mine production âą Proven + probable resources âą Mine production by country âą | | | Journal (article/letter/editorial) | | hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is ïŹrst and foremost recognized...According to the Raw Materials Group (Sweden), the world mine production in 2005 stood at 19.3 m t metal content...mining company. âą World mine production âą Proven + probable resources âą Mine production by country âą |  | 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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