 | Du, Shengjiang, Wen, Hanjie, Liu, Shirong, Qin, Chaojian, Yan, Yongfeng, Yang, Guangshu, Feng, Pengyu (2020) Mineralogy and Metallogenesis of the Sanbao Mn–Ag (Zn-Pb) Deposit in the Laojunshan Ore District, SE Yunnan Province, China. Minerals, 10 (8) 650 doi:10.3390/min10080650 | Journal (article/letter/editorial) | | mineralization. Results show that manganite and romanèchite are the major Ag-bearing minerals. Cassiterite...Keywords: the Sanbao Mn–Ag deposit; manganite; romanèchite; rhodochrosite; Caledonian granitic pluton; China...confirmed that Ag exists mainly in manganite and romanèchite in the state of isomorphism. It is important...large-scale deposit. The main faults trend NW and NE and dip at a relatively high angle to the east in...and romanèchite (Figure 4d,e). The strong oxidized ore mainly consists of manganite, romanèchite, pyrolusite |  | | Journal (article/letter/editorial) | | amounts of hollandite, cryptomelane, todorkite, romanèchite, pyrolusite, and X-ray amorphous Mn oxide. Chemically...pyrolusite, and todorokite, with lesser amounts romanèchite (Table 2, Fig. 6). These phases have also been...plagioclase, Pyr = pyrolusite, Qtz = quartz, Rmn = romanèchite, Tod = todorokite, UHG = undifferentiated hollandite-group...Cryptomelane Hollandite Pyrolusite Todorokite Romanèchite 20 30 40 50 60 70 Position (°2θ) FIG....cryptomelane, hollandite, pyrolusite, todorokite, and romanèchite. however, neither phase was identified in this |  | | Journal (article/letter/editorial) | | homepage: www.elsevier.de/chemer The fluorite deposits NE of Regensburg, SE Germany—A mineralogical and chemical...late 1980s when the last mines were shut down in NE Bavaria. Both fluorite mining districts are separated...structure, the NNW-trending boundary fault of the NE Bavarian Basement, controls vein-type fluorite deposits...Introduction The Nabburg-Wölsendorf mining district in NE Bavaria, Germany, once belonged to the most famous...(Dill and Weber, 2011). The mineralized areas in NE Bavaria are comparable with respect to the age of |  | | Journal (volume) | | by World War II. Bob served in North Africa and Italy, returning with a large suite of minerals from Monte...the Russell Society (2013) CORONADITE AND ROMANÈCHITE FROM THE NORTHERN PENNINE OREFIELD Stephen MORETON...identified the Great Dun Fell “psilomelane” as romanèchite and described coronadite from Sedling Vein, Weardale...supported by detailed chemical data. Whilst romanèchite is distinguishable from other manganese oxides...two MnO6 units wide by two high (2 x 2). In romanèchite they are wider (2 x 3), and other permutations |  | | Journal (article/letter/editorial) | | setting El Bahariya Depression is a large, oval-shaped, NE-oriented depression in the center of the Western...mine areas. El Bahariya Depression is deformed by a NE-trending rightlateral wrench fault system (Fig. 1)...almost aligned in an enechelon pattern along the main NE-striking wrench faults. In the three mine areas,...todorokite, birnessite, aurorite, manjiroite, romanèchite, hollandite, and pyrolusite, are developed between...essential element in psilomelane (hollandite and romanèchite) and todorokite. Barite is found in many stratigraphic |  | Göb, S., Wenzel, T., Bau, M., Jacob, D. E., Loges, A., Markl, G. (2011) The redistribution of rare-earth elements in secondary minerals of hydrothermal veins, Schwarzwald, southwestern Germany. The Canadian Mineralogist, 49 (5) 1305-1333 doi:10.3749/canmin.49.5.1305 | Journal (article/letter/editorial) | | TR. La churchite et rhabdophane, phosphates de TR, ne coexistent pas dans ce district, et apparaissent...membre du groupe de la mixite ne peut donc incorporer que les TR qui ne sont pas incorporées par le minéral...(SG52; chemical composition close to asbolane and romanèchite) from the Clara mine is intergrown with a mixite-group...asbolane [(Cu,Co,Ni) 2–xMn(O,OH) 4•xH 2O] and romanèchite [(Ba,H2O)2Mn5O10]. Normalized to 1 and 5 apfu...chemistry of mixite group minerals from Sardinia (Italy). Neues Jahrb. Mineral., Monatsh., 487-499. Onac |  | | Book | | Lawrencium Mendelevium Magnesium Manganese Mo N Na Nb Nd Ne Ni No Np O Os P Pa Pb Pd Pm Po Pt Pr Pu Ra Rb Re...first faceting probably involved diamond cutting in Italy prior to the 15th century. First, only the natural...dazzling white marble being quarried at Carrara, Italy, is metamorphosed from a very pure limestone. ROCKS...This massive specimen from Monte Amiata, Tuscany, Italy, also contains cinnabar crystals. cystalline cinnabar...meteorites and as a sublimate on Mount Vesuvius, Italy. MINERALS | SULFIDES 61 PROFILE Stibnite crystals |  | | Journal (issue) | | currently being mined. M. L. S. C. Chavez photo. 45°NE. The miners noticed the presence of a few blocks...K feldspars from the Adamello Massif (Northern Italy). Acta Crystallographica, B34, 2699–2707. DEER,...Cristalli, where superb specimens, including many from Italy, preen on their shelves, and everything about the...Record, volume 53, May–June, 2022 Figure 28. Romanèchite with goethite, 5.8 cm, from Királyszentistván...miniature and small-cabinet-size combinations of romanèchite with goethite from a 2020 find at a place called |  | | Journal (article/letter/editorial) | | Mn4+ ) 0.5 O4 2 O12 •3(H2 O) 7 O14 ·2.8H2 O Romanèchite (psilomelane) [(Ba,H2 O,Mn5 O10 , Ba(Mn4+ ,...Fe-carbonate (siderite, ankerite) iron deposit at Rudabánya, NE Hungary [67]. This was followed by the small-size...Mg, Ba, Fe) such as cryptomelane, jacobsite, romanèchite, and manjiorite [26,34,43,44,47,56,73]. In accordance...Ferrihollandite, BaMn4+ 6Fe3+ 2O16, from Apuan Alps, Tuscany, Italy: Description and crystal structure. Eur. J. Mineral |  | Dumitras, D.-G., Marincea, S., Bilal, E., Hatert, F. (2008) APATITE-(CaOH) IN THE FOSSIL BAT GUANO DEPOSIT FROM THE "DRY" CIOCLOVINA CAVE, SUREANU MOUNTAINS, ROMANIA. The Canadian Mineralogist, 46 (2) 431-445 doi:10.3749/canmin.46.2.431 | Journal (article/letter/editorial) | | remplacement du Ca par d’autres cations est mineur, ne comptant que pour 0.71 à 4.07% des sites occupés... aragonite, hematite, goethite, birnessite, romanèchite, todorokite and kaolinite. Onac et al. (2002...hydroxylapatite, and taranakite from Apulian caves (southern Italy): new mineralogical data. Am. Mineral. 76, 1722-1727 |  | Molnár, Zsombor, Polgári, Márta, Hein, James R., Józsa, Sándor, Fekete, József, Gyollai, Ildikó, Fintor, Krisztián, Bíró, Lóránt, Szabó, Máté, Rapi, Sándor, Forgó, Péter, Vigh, Tamás (2017) Fe-Mn oxide indications in the feeder and mound zone of the Jurassic Mn-carbonate ore deposit, Úrkút, Hungary. Ore Geology Reviews, 86. 839-855 doi:10.1016/j.oregeorev.2016.11.005 | Journal (article/letter/editorial) | | proximity to fracture zones oriented N-NW–S-SE along the NE-SW mountain trending unit of approximately 12 km...as goethite, and less TE commonly Mn oxides romanèchite, manganite, groutite, pyrolusite, birnessite...and mound indications consist of Mn oxides (romanèchite, manganite, groutite, pyrolusite, birnessite |  | | Journal (article/letter/editorial) | | mol.% Ks), 16.3–17.2 wt.% Na2O (78.5– 82.1 mol.% Ne), with a small amount of Fe2O3 (between 0.9 and 2...composition suggest some similarities with “romanèchite” described from the Oldoinyo Lengai calcite carbonatite |  | | Journal (issue) | | type of phenomenal quartz • A new gemstone from Italy: “Violan quartz” • New sources of marble-hosted...and Salvador Assael, a New York importer born in Italy. Wan purchased and enlarged Tahiti Perles, an operation...luxury retailers in the United States, France, Italy, and Japan. As part of the branding process, Perles...The Pearl Book. www.cibjo.us/pearl.pdf, Milan, Italy. TRANSFORMATION OF THE CULTURED PEARL INDUSTRY...color—greenish blue to blue to violet; RI—no=1.638–1.640 and ne=1.618–1.620; birefringence—0.018–0.021; SG—3.06–3 |  | | Journal (article/letter/editorial) | | Golden, CO, 80401, USA c Applied Petrographics, 4909 NE 320th Avenue, Camas, WA, 98607, USA b a r t i c...Ramsdellite/pyrolusite Cryptomelane Hollandite Coronadite Romanèchite Fe3+ 2 O3 Fe3+ OOH Mn4+ O2 K1-1.5 (Mn4+ ,Mn3+ |  | | Journal (article/letter/editorial) | | consists of hollandite, pyrolusite, ramsdellite, romanèchite and cryptomelane with massive, breccia, botroydal...to 600 m, a thickness of up to 7 m and mainly NW, NE and EW striking. They consist of psilomelane, criptomelane...calcite veins of a thickness between 50 and 300 mm and NE to EW striking. The ore paragenesis mainly consists...and some tens of meters long, located in ENEWSW and NE-SW faults (Brodtkorb, 1999). The hypogene ore paragenesis |  | | Book | | géométrie définie par un ensemble d'éléments de symétrie ne sont donc plus des minéraux, (centre, axes, plans)...que quelques minéraux ne formant aucun cristal, car leurs éléments atomiques ne sont pas rangés selon...possible de caractéristiques, chose facile s’il ne faut que peu de matériel (couleur du trait, dureté...voisin de dureté supérieure, etc. jusqu'à celui qui ne le raye pas : tous deux sont alors de même dureté...(minéral à rayer, et une rayure sans qu'en général ne se non ébréchures du témoin utilisé). Voir aussi |  | | Journal (article/letter/editorial) | | Universitario di Monte S. Angelo, Napoli 80126, Italy; bGeoZentrum Nordbayern, University of Erlangen-Nuremberg...Osservatorio Vesuviano, Via Diocleziano 328, Napoli 80124, Italy Email address: boni@unina.it © 2018 Institute of...Università degli Studi di Napoli Federico II, Napoli, Italy (a.cauceglia@ studenti.unina.it); bAdventus Zinc...sulphides precipitated at or near equilibrium. (U+Th)/Ne ages of two hematite samples from the Glengonnar...occurrence of ore veins on normal faults and (U+Th)/Ne ages implies emplacement APPLIED EARTH SCIENCE |  | | Book | | voulez laisser vos empreintes dans le sable du temps, ne traînez pas les pieds »... et lisez ce bel ouvrage...conservateur du Musée géologique de Lausanne. RE ne Moins connue que l’île de Groix (surnommée « l'île...brièvement les trois types principaux de roche. Ces roches ne sont pas immuables dans le temps: en effet, l'érosion...évi_demment non ! L'arénophile (collectionneur de sables) ne connaît peut-être pas le pipekrake. Ce mot suédois...naturellement dans les sables. Des larves de phryganes ne sont pas rares dans les sables de ruisseaux ou de |  | | Journal (article/letter/editorial) | | Schmölz-Erbendorf (NE Bavaria) Germany Dill 1985 Zn-Pb-(Cu) vein-type Ni-Fe vein-type Berg (NE Bavaria) Germany... Lichtenberg-Issigau- Cu-F vein-type Siebenhitz (NE Bavaria) Germany Gudden 1975; Schmid 1981; Dill...cerussite cerussite Cubearing coronadite Freihung (NE Bavaria) Germany Clifford et al. 1986; Banks & Russell... Auronzo Italy Arlt & Diamond 1998 Schwaz Austria Dill & Bäumler 2007 Tirschenreuth (NE Bavaria)...BrandholzGoldkronach Wolfersgrün (NE Bavaria) Germany Dill et al. 2009 Auerbach (NE Bavaria) Germany Reference |  | | Journal (article/letter/editorial) | | Richterite Riebeckite Rinkite Rodalquilarite Romanèchite Romeite Roquesite Roscoelite Roselite Rustenburgite...Piampaludo–Savona in the western Ligurian Alps, Italy, an eclogitic ferrogabbro layer is enclosed in the...Romania, Cala-Sierra Morena, Spain, San Leone, Italy and Dirrigi, Turkey (syenite and monzonite intrusions...1986) (Fig. 09.04). Elba and Gavorrano-Tuscany, Italy, have replacement and skarn-type affiliation. In...iron deposit at Gavorrano in southwestern Tuscany, Italy, at the contact between Neogene subvolcanic magmatic | | | Journal (article/letter/editorial) | | Richterite Riebeckite Rinkite Rodalquilarite Romanèchite Romeite Roquesite Roscoelite Roselite Rustenburgite...Piampaludo–Savona in the western Ligurian Alps, Italy, an eclogitic ferrogabbro layer is enclosed in the...Romania, Cala-Sierra Morena, Spain, San Leone, Italy and Dirrigi, Turkey (syenite and monzonite intrusions...1986) (Fig. 09.04). Elba and Gavorrano-Tuscany, Italy, have replacement and skarn-type affiliation. In...iron deposit at Gavorrano in southwestern Tuscany, Italy, at the contact between Neogene subvolcanic magmatic |  | | Book (chapter) | | trzaskawka = halite, Papp 105 (2004). tsao-chui-ne = mercury, de Fourestier 359 (1999). tsargorodtsevite...vermiculite, Robertson 36 (1954). tungomelane = W-rich romanèchite, MM 26, 343 (1943). tungpait = tongbaite, László |  | | Journal (issue) | | sandwich board sign at the junction of U.S. 97 and NE Pony Butte Road that was advertising the Polka-Dot...breakfast in Madras, and by the time we reached the NE Pony Butte turnoff at 9 a.m., the thermometer was...minerals as manganite, manganosite, hausmannite, romanèchite and hollandite. These often occur together and...Over 200,000 in mind. Fluorescent minerals and Dr NE, Deming NM 88030. 479specimens on hand, unique gift...Panorama Gem and Mineral Club, Colville Ag Trade Center; NE WA Fairgrounds; Fri. 8:30-6, Sat. 9-5; Free Admission; |  | | Book | | bringing back looted treasures from Greece to Italy. Ironically, the statue was saved and preserved...black | Locations Spain, South America, US, Japan, Italy, Norway, Greece, Slovakia Crystals with mixed shapes...White, grayish, brownish | Locations Portugal, Italy, France, Czech Republic, Brazil, Myanmar Transparent...Streak Pale brown to yellowish | Locations Sweden, Italy, France, Austria, Brazil, US Rutile needles Multiple...Vitreous to resinous | Streak White | Locations Spain, Italy, China Lively coral color Aragonite sputnik | |  | | Journal (issue) | | Miguel Calvo Zaragoza, Spain Renato Pagano Milan, Italy Joe Polityka Staten Island, NY Jeffrey A. Scovil...Potosíite Pseudoboléite Ranciéite Rhönite Rokühnite Romanèchite Roméite Römerite Röntgenite-(Ce) Rosickýite Rosiérésite...icminerals@earthlink.net Quality Minerals from Italy & Worldwide www.ItalianMinerals.com e-mail: italianminerals@libero...towards the enrichment of mineralogy in the U.S. NE T YEAR . . . A truly special and unprecedented theme...tundrite blade rom the nd at Mont Saintilaire. i re . ne o the World’s most photographed scenic spots the |
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