 | | 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 |  | Caucia, Franca, Scacchetti, Maurizio, Marinoni, Luigi, Gilio, Mattia, Langone, Antonio, Bartoli, Omar, Vanotti, Marco, Foianini, Ivano (2021) An Attractive Blue Diopside from Sissone Valley, Western Alps, Italy. Minerals, 11 (8) 837 doi:10.3390/min11080837 | Journal (article/letter/editorial) | | Attractive Blue Diopside from Sissone Valley, Western Alps, Italy Franca Caucia 1, *, Maurizio Scacchetti...Attractive Blue Diopside from Sissone Valley, Western Alps, Italy. Minerals 2021, 11, 837. https:// doi...University of Pavia, Via Ferrata 1, 27100 Pavia, Italy; mauscacchetti@alice.it (M.S.); luigitito.marinoni@unipv...ResourcesInstitute CNR, Via Ferrata 1, 27100 Pavia, Italy; langone@igg.cnr.it Geosciences Department, University...University of Padova, Via Gradenigo 6, 35100 Padova, Italy; omar.bartoli@unipd.it Correspondence: caucia@crystal |  | | 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 |  | | 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 |  | 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) | | Universit)t di Bologna, Italy, C.N.R. Centro per la Cristallografia strutturale, Pavia, Italy, Naturhistorisches...from the manganese deposit of Praborna, near St. Marcel (Aosta Valley, Italy) occur in two different varieties:...("Violan") von der Manganlagerstiitte Praborna bei St. Marcel (Aosta-Tal, Italien) bilden entweder idiomorphe...in the Mn-orebody Praborna near St. Marcel in the Aosta Valley (northwestern Italy). It was originally...an impure material intimately intergrown with tremolite. His second analysis was later confirmed by Schluttig |  | | 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 |  | | 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 |  | | Report (issue) | | 30 0.14 0.00 Total 100.00 3+ 3+ (1) St. Marcel, Italy; corresponds to (Ca1:78 Mn 2+ 0:13 Na 0:10 K0:03...andesites, and diorites. Association: Epidote, tremolite, glaucophane, orthoclase, quartz, calcite. Distribution:...localities. In the Praborna mine, south of St. Marcel, Val d'Aosta, Piedmont, Italy. In Sweden, on SÄorhº...Garnet Lake and in the Agnew Meadow mine, Madera Co., and in the Braito mine, Plumas Co., California; in the...Tucson Mountains, Pima Co., Arizona; at the Idarado mine, Ouray Co., Colorado; in Yuba Canyon, Peavine Mountain |  | Hughes, Lewis, Burgess, Ray, Chavrit, Déborah, Pawley, Alison, Tartèse, Romain, Droop, Giles, Ballentine, Chris J., Lyon, Ian (2018) Halogen behaviour in subduction zones: Eclogite facies rocks from the Western and Central Alps. Geochimica et Cosmochimica Acta, 243. 1-23 doi:10.1016/j.gca.2018.09.024 | Journal (article/letter/editorial) | | ocean floor origin for the complex. The St. Marcel valley (Fig. 1, locality 3) includes both oceanic and...collected from Servette and Fontillon, near St. Marcel. They are representative of a suite of eclogitised...collected from the Lago di Cignana and the Praborna manganese mine areas. DC50B is a garnet mica schist, in...antigoritization, laumontite → lawsonite + quartz + H2O and tremolite + chlorite + albite → glaucophane + epidote +...Lustres Formation in the Alps (Saint-Veran, France and Traversiera Massif, Italy). In: Baumgartner P.O., O’Dogerthy |  | | Journal (article/letter/editorial) | | Studi di Milano, Via Mangiagalli 34, 20133 Milano, Italy (davide.zanoni@unimi.it) 2 Dipartimento di Scienze...degli Studi di Pavia, Via Ferrata 1, 27100 Pavia, Italy 1 Short title: OCEAN FLOOR TO SUBDUCTION RECORD...oceanic Zermatt-Saas Zone (Western Alps, northwestern Italy) during Alpine subduction. Rodingites occur in the...upper Valtournanche (Val d’Aosta, northwestern Italy), consists of high-pressure/ultra-highpressure (HP/UHP)...et al., 2009) and, south of the Aosta-Ranzola fault (St. Marcel valley), 2.1 ± 0.3 GPa and 550 ± 60 °C |  | | Report (issue) | | 062 c = 5.300 X-ray Powder Pattern: Kajlidongri mine, India. (ICDD 20-1390). 2.699 (100), 8.40 (90),...4.01 0.16 Total 97.18 97.20 (1) Kajlidongri mine, India; by electron microprobe, total Fe as Fe2O...microcline, diopside, plagioclase, apatite, tremolite (Ka jlidongri mine, India); omphacite, garnet, rutile,...California, USA). Distribution: In the Ka jlidongri mine, Jhabua district, Madhya Pradesh, India. From near...Island, Venezuela. In the Praborna mine, near St. Marcel, Val d'Aosta, Italy. At Ward Creek, Cazadero |  | | 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 |  | | Book (volume) | | anfiboli I a) Anfiboli monoclini Cummingtonite Tremolite Actinolite Richterite Orneblenda I Edenite Kaersutite...esagonali di calcite. Monte Rosso di Verra, presso Saint Jacques, Champoluc, Val d'Aosta. In basso, a destra:...aghi sottili, anche in Val d ' Aosta (Montjo vet e Bellecombe presso Saint Vincent, Monte Rosso di Verra...si trova rararnente nella miniera di Saint Marcel in Val d' Aosta, come localita unica al mon do. Il violano...4 - Violano, in masse tipicamente violacee. St. Marcel, Val d'Aosta (1 x). 264 Traversel l ite Un'altra |  | | 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 |  | | Journal (article/letter/editorial) | | HzO + HCI +_braunite + hematite = piemontite + tremolite + albite + chlorite + calcite + quartz + NaC1...§ piemontites from braunite quartzites at Praborna, Italy, contain up to about 33 mole % Mn 3§ in early...piemontite and thulite has been done. At the idle Mn-mine of Vitali, Andros island, Greece, piemontites of...Muscovite Chlorite Piemontite Thulite Spessartine Tremolite Cymrite Celsian Calcite Braunite Hematite Hollandite...piemontite, albite, cymrite, muscovite, and minor tremolite, braunite, thulite, barite, hollandite, titanite |  | | 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 |  | | Journal (article/letter/editorial) | | from Saas-Fee area (Switzerland) to the Aosta valley (Italy; Fig. 1c), belongs to the internal Liguro–...2008). Serpentinite breccias from the southern Aosta valley (Mont Avic area) described by Tartarotti et...pseudomorphs in the whole ophiolite unit (Täsch valley: Bearth, 1966; Fry and Fyfe, 1971; Fry and Barnicoat...Valtournanche: Ernst and Dal Piaz, 1978; Saint-Marcel valley: Martin and Tartarotti, 1989). Complexity...shear zones commonly exhibit talc-, chlorite- and tremolite-bearing schists (Martin et al., 2008). Shearing |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | cm large and containing quartz, clinozoisite, tremolite, phengite, calcite and dolomite are crosscutting...1995. Geology of the Internal Zone of the Grand Saint Bernard Nappe: a metamorphic Late Paleozoic volcano-sedimentary...volcano-sedimentary sequence in South-Western Aosta Valley (Western Alps). In: Lombardo, B. (Ed.), Studies..., 1987. The HP–LT manganiferous quartzites of Praborna, Piemont ophiolite nappe, Italian Western Alps...ophiolitic glaucophanites of the lower St Marcel valley (Aosta, Italy). Ofioliti 14 (3), 135–156. Massonne |  | | 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 |  | Holtstam, Dan, Cámara, Fernando, Skogby, Henrik, Karlsson, Andreas, Langhof, Jörgen (2019) Description and recognition of potassic-richterite, an amphibole supergroup mineral from the Pajsberg ore field, Värmland, Sweden. Mineralogy and Petrology, 113 (1) 7-16 doi:10.1007/s00710-018-0623-6 | Journal (article/letter/editorial) | | Milano, Via Luigi Mangiagalli 34, 20133 Milan, Italy dominant amphibole varieties in what is now defined...reported from the metamorphosed Praborna manganese ore deposit, Val d’Aosta, Italy (Mottana and Griffin 1986;...Holtstam et al. a pyroclastic deposit, Monte Somma, Italy. A K-rich richteritic amphibole with Fe2+ > Mg ...mean the Stora Pajsberg mine (59 °47.04’ N; 14 °19.03′ E), or the Harstigen mine (59 °47.10’ N, 14 °18...physical resemblance to skarn from the Stora Pajsberg mine. It was originally collected by the mineralogist |  | | Catalog/List | | Vetralla Italy) Ixlins £4.50 396 TORBERNITE Cu UO PO/4 slightly radioactive. (Old Gunislake Mine Cornwall)...Phlogopite Mica. (Possibly slightly radioactive)(Palabora Mine,S.Africa lxl £5 1x2 £10 WITH UNUSUAL ELEMENTS...sections in matrix with Eudialyte.Rare not Rich (Umba Mine,Lovozero Massif,Kola Russia) lxl £4 1x2 £7.50 239...silvery areas in matrix with Tellurite. (La Bambolla Mine Moctezuma, Sonora Mexico) lxl £10 14 x 54 ins £5...CO/3 0 Quite rich yellow crusts on matrix. (Outpost Mine, San Domingo Wash Maricopa County Arizona) lx)4ins |
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Praborna Mine, Saint-Marcel, Aosta Valley, Italy