 | | Journal (article/letter/editorial) | | periods when some chance discovery in an active mine makes them briefly available to collectors. Chalcocite...as pseudomorphs after chalcopyrite, chalcocite, enargite, arsenopyrite, sphalerite, and bornite. Excellent...copper minerals from such localities as the Loudville mine, Easthampton, Hampshire County, Massachusetts; Mineral...Figure 3. An aesthetic specimen from the East Colusa mine, Butte, Montana, consisting of sharply developed...field, Carroll County, New Hampshire; the Ecton mine, Montgomery County, Pennsylvania; and many New Jersey |  | | Report (issue) | | Enargite Cu3 AsS4 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic. Point...La Rioja Province. In the Philippine Islands, at Mancayan, Luzon. From the Chinkuashi mine, Keelung,...Kaize-mura, Nagano Prefecture, and in the Teine mine, Hokkaido, Japan. In the USA, in splendent crystals...Tirol. From Bor, Serbia. In Italy, on Sardinia, at Alghero and Calabona. At Tsumeb, Namibia. Name: From...Sundberg (1998) Stacking disorder and polytypism in enargite and luzonite. Amer. Mineral., 83, 365–372. (4) |  | | Report (issue) | | Chalcopyrite, chalcocite, djurleite, bornite, enargite, pyrite, other sulfides. Distribution: Numerous...material. In Italy, from Vesuvius, Campania [TL] and as large crystals from the Calabona mine, Alghero, Sardinia...Kedabek, Caucasus Mountains, Russia. In the Bou-Skour mine, Bou Azzer district, Morocco. In the USA, from Butte...in Arizona. In the Sierra de Famatina, La Rioja Province, Argentina. Name: To honor Niccolò Covelli (1790–1829)... Mineral Museum, University of Naples, Naples, Italy, 12338. References: (1) Palache, C., H. Berman |  | | Journal (article/letter/editorial) | | Lattanzi Epithermal precious metal deposits of Italy±an overview Received: 13 October 1998 / Accepted:...view of Italy. It was only in the late 1980s that two districts were recognized, in Sardinia and southern...UniversitaÁ di Cagliari, via Trentino 51, Cagliari, Italy alent). The onset of (presumably meteoric) hydrothermal...records and/or exploration potential are in Spain, Italy, Yugoslavia, Hungary, Bulgaria, Slovakia, Ukraina...in Italy was neglected until the late 1980s, when two main districts were recognized in Sardinia and |  | | Report (issue) | | fine-grained, massive, intimately intergrown with enargite. Twinning: Common on {112}, also polysynthetic...Polymorphism & Series: Mineral Group: Dimorphous with enargite; forms a series with famatinite. Stannite group...formed at low to medium temperatures. Association: Enargite, tetrahedrite–tennantite, colusite, stannoidite...the Lepanto mine, Mankayan, Luzon, Philippines [TL], as an ore mineral. In the Chinkuashi mine, Keelung...localities. From the Sierra Famatina, La Rioja Province, Argentina. In the Julcani district, at Cerro |  | | Journal (article/letter/editorial) | | Article Chemical state of arsenic and copper in enargite: evidences from EPR and X-ray absorption spectroscopies...table Abstract: The chemical state of elements in enargite, Cu3AsS4, has been traditionally interpreted assigning...the understanding of the oxidation process of enargite, that has important implications for both environmental...magnetometry. XANES spectra at the Cu K-edge for enargite and other copper sulphides show the expected affinities...affinities between the spectra of enargite and chalcopyrite (although the pre-edge feature typical of |  | Ruggieri, Giovanni, Lattanzi, Pierfranco, Luxoro, Silvana S., Dessi, Roberto, Benvenuti, Marco, Tanelli, Giuseppe (1997) Geology, mineralogy, and fluid inclusion data of the Furtei high-sulfidation gold deposit, Sardinia, Italy. Economic Geology, 92 (1) 1-19 doi:10.2113/gsecongeo.92.1.1 | Journal (article/letter/editorial) | | Dataof the FurteiHigh-Sulfidation GoldDeposit,Sardinia, Italy GIOVANNI lqUGGIERI, InstitutoInternazionale...Ricerche Geotermiche, CNR,PiazzaSolferino 2, 56100Pisa,Italy PIERFRANCO LATTANZI, Dipartimento di Scienze dellaTerra...09127Caglian', Italy SILVANA S. LUXORO, ROBERTODESSi, Progemisa, Via Contivecchi 7, 09122Cagliari,Italy MARCO...50121Firenze,Italy Abstract Theepithermal high-sulfidation golddeposit at Furtei(Sardinia, Italy)contains...verticalzoningof the mineralassemblage: at higherlevelspyrite-enargite-luzonite-gold are present,whereas in the deepzonethe |  | | Journal (issue) | | (a mass of small cavities), from Cagliari, Sardinia, Italy. Right: Needle-shaped crystals of aurichalcite...Zaire, and in various parts of F ranee, Greece, Italy and Russia. FACT Above: An example of aurichalcite...of Jibethenite crystals from Kakanda in Shaba Province, Zaire. m r- LI M N E R A L S ex: w z...Vesuvius, the famous volcano m ::lJ near Naples in,Italy. So great was the heat of the eruption that solid...Vesuvius near Naples in Italy. Covellite is also found in various parts of Sardinia, Argentina, Bolivia, |  | Orgeval, J. J., Caron, C., Lancelot, J., Omenetto, P., Gandin, A., Libertà, A., Courjault Radé, P., Tollon, F., Laurent, Ph., Maluski, H., Béziat, P., Salpeteur, Y., Sini, G., Elter, F.M., Baratto, M. (2000) Genesis of polymetallic and precious-metal ores in the Western Mediterranean province (Cévennes, France–Sardinia, Italy) Applied Earth Science, 109 (2) 77-94 doi:10.1179/aes.2000.109.2.77 | Journal (article/letter/editorial) | | in the Western Mediterranean province (Cévennes, France– Sardinia, Italy) Downloaded by [Laurentian University]...Lower Palaeozoic Iglesiente domain of southwest Sardinia and the southern Cévennes–Montagne Noire Variscan...gold province of Sardinia is genetically quite distinct from the Palaeozoic lead–zinc province of Iglesiente...(southern Cévennes, Montagne Noire) and southwestern Sardinia (Iglesiente–Sulcis). Essentially Cambro-Ordovician...attractive example54 and the Tertiary gold of western Sardinia is a new, economically interesting discovery.77a |  | | Journal (article/letter/editorial) | | Summary Arsenian goldfieldite from the Marian Gold Mine, Philippines, which is hosted by the Cordon Syenite...(1907), who investigated ores from the M o h a w k Mine, Goldfield, Nevada. An analysis by Palmer, published... / I b-'\\,7/ ,j _/ t't l/ \ / M ar ia, Gold Mine / t S c. [ { ~ / //"'~- ,J/ ~// , /"// ...(1975) provided an analysis ofgoldfieldite from Sardinia. More recently, Tsepin et al. (1977), Spiridonov...goldfieldite and tellurian tennantite from the Marian Gold Mine (northern Luzon, Philippines; Fig. 1), which, in |  | | Journal (article/letter/editorial) | | Washington, DC 20013 pohwatp@si.edu ENARGITE Longfellow Mine, Red Mountain District, San Juan County...group is the subject of this column—enargite. The name enargite is derived from the Greek έναργ ής...(001). Enargite also occurs in granular or massive habits. One of the characteristics of enargite crystals...are the striations along prism faces. Although enargite has perfect {110} cleavage, it also has distinct...indistinct cleavage. Twinning is common on {320}, and enargite may occur as interpenetrating trillings having |  | | Journal (article/letter/editorial) | | (White & Hedenquist, 1990), are characterized by enargite-gold mineralization, and http://journals.cambridge...Zelenka (1975). argillic alteration with or without enargite-gold mineralization above inferred porphyry systems...PYROCLASTIC FLOWS soo 2.c. Associated intrusive rocks MINE SE UPPER ANOESITES MIDDLE PYROCLASTICS AN0ESITES...porphyry copper system beneath the kaolinite-alunite enargite-gold deposit. AS, adularia-sericite epithermal...epithermal gold; KA, kaolinite-alunite epithermal enargite-gold; P, porphyry copper; V, andesitic volcanic rocks |  | | Book (volume) | | to try to list all of the mining geologists and mine managers who made these visits possible and who...Netherlands-Extreme Western Germany, Switzerland, and Italy. Volume V (or Volume III, Part III) will take up...current electoral and administrative departments. In Italy the deposits are listed alphabetically, except for...east of Coimbra (N40°12 N, 8 ° 2 5 W ) in the province off Beira f Baixa and some 25 km slightly NofW...crude ore averages about 0.3 per cent of WO3. The mine can produce 2000 to 2500 tons per day of tungsten |  | | Journal (issue) | | On The Cover Covellite specimen, Calabona Mine, Sardinia, Italy (ROB LAVINSKY, The Arkenstone/iRocks...(and a few other fortunate campers) to a diferent mine and teach us the techniques of mining there. hey...distant mountains, a lake, and a tiny town. At the mine hauled out various screens of diferent diameters...than Butte covellite specimens from the Calabona Mine, Italy are unrivaled in terms of iridescence. WIKIMEDIA...“richest hill on Earth” at Butte, Montana’s Leonard Mine. As a matter of fact, covellite enjoys some royal |  | | Book | | Geografico De Agostini, Novara 1967 Printed in Italy by IGDA, Novara SBN 0 85613 108 3 Crystallography...andalusite, danburite, topaz, olivine, cordierite, enargite, chalcocite, bournonite, hemimorphite, and aurichalcite...garnet known as hessonite . Val d’Ala, Piedmont, Italy (4 mm). The rhombic-shaped face in the centre is...Cubic system. Triglyphic pyrite, from Traversella, Italy (30 mm). The corner of the crystal is interrupted...form. 17 Cubic system. Pyrite from Grosseto, Italy (10 mm). The pentagona l dodecahedral form ofthis |  | Yuan, Qi, Wei, Min, Wang, Zhiqiang, Wang, Ge, Duan, Xue (2004) Preparation and Characterization of L-aspartic Acid-intercalated Layered Double Hydroxide. Clays and Clay Minerals, 52 (1) 40-46 doi:10.1346/ccmn.2004.0520105 | Journal (article/letter/editorial) | | 46 Yuan et al. Manasse, E. (1919) Enargite from Calabona (Sardinia). Attitude Society Toscana Science |  | | Book | | aurifères des roches volcaniques de Rodalquilar, Province d' Almeria. ARGENT Ag Cubique. Les cristaux nets...allongées Vue générale des installations de la mine d'or de l'entreprise nationale Adaro, à Rodalquilar...Guadalajara ; Guadalcanal, province de Séville et ceux de Las Her rerias, province d' Almeria. ELE,\J F...dans les mines de Jaroso, _Almagrcra, dans la province d'Almcria. De l'allemand W1SMUTH, d'origine inconnue...étain. Abondant en Saxe, Allemagne; à Sorata, province de La Paz, Bolivie; Kingsgate, Nouvelles Galles |  | | Book (volume) | | Spain by F. Vazquez Guzman Portugal by D. Thadeu Italy by P. Zuffardi European part of the U.S.S.R. by...Southwest Europe embraces France, Spain, Portugal and Italy. Each volume has an introductory chapter of the...Cordillera Pyreneo-Proven!yal chain Corsica and Sardinia . Mineralization in relation to tectonic evolution...Elisa and Dorinda Barruecopardo Golpejas or Bellita mine Morille-Martinamor El Cubito El Trasqui16n. Santa...Baixo Tejo and Sado Basins Silica sand deposits Italy by P. Zuffardi Introduction Geological setting Stratigraphy |  | | Journal (issue) | | miners drill holes in the rock at Taxco silver mine in Mexico. Right: North Sea drilling rig 'Claymore-A'...crystals set in an asbestos base from Sondrio in Italy. Actinolite has high mechanical sensitivity - this...(matrix) from Balzano, Italy. Below: Note the blackness of these crystals from Novara, Italy. ~ Actinolite forms...British Columbia (Canada), in the Alpine regions of Italy, in New Zealand, in Siberia (Russia) and in Alaska...particularly in the Ojuela result of some chemical Mine in Durango State. reaction that has occurred Significant |  | | Book | | (Federal Republic of, FRG) Great Britain Ireland Italy Netherlands Norway Portugal Spain Sweden Swi~erland...Saxony, GDR llfeld, Harz, GDR Rio Marina, Elba, Italy Schneeberg, Saxony, GD R Wolfsberg, Harz, GDR Freiberg...particularly interesting collection of miners' lamps and mine surveying instruments. Ancient and mediaeval mining...worn by mine officials of Saxony on ceremonial occasions. A special attraction is a model mine, 20m below...N. from the main railway station, landmark is a mine headframe. Tues.- Fri. 8.30-17.30 hrs.; Sat.- Sun |  | | Book | | Guastoni; Roberto Appiani. Originally published: Italy : Mondadori, 2003. [256] p. : col. photos. ; cm...CAPTIONS Page 1: Cuprite crystals from the Ray mine, Arizona Pages 2-3: Liroconite from PERFECT CLEAVAGE...Susa Valley, Piedmont, Italy Pages 8-9: Beryl from the Codera Valley, Lombardy, Italy Pages 42-43: Silver...Mount Bregaceto, Liguria, Italy Pages 104-105: Azurite crystals from Sardinia, Italy Pages 118-119: Boracite...160-161: Elbaite crystals from the island of Elba, Italy Pages 244-245: Whewellite crystals from the Czech |  | | Book | | Right: This silver specimen from Seed. Sarrabus. Sardinia, is called filiform from its threadlike appearance...Keweenaw area of north Michigan; at the Copper Queen mine, Bisbee, Arizona and at Georgetown, New Mexico....appraisal. Many Right: Native mercury from Lucca. Italy. This form is extremely rare as mercury is normally...States, in California and Texas; and in Spain and Italy. Treatment. Occurs naturally in such small drops...areas including Kimberley, Pretoria (the Premier mine is in this area), and Jagersfontein in the Orange |  | | Book (edition) | | sample of scheelite, coming from Traversella (Turin, Italy), in light natural (above) and exposed Other...that a collector in the field should visit are mine dumps and quarry rubble heaps, where there will...small deposits are found near Pisa and Florence (Italy). Uses Native copper rarely occurs in large enough... lb) was mined. How- been from the Guanajuato mine (Mexico), about 500 billion kilos (460,000,000 tons)...day. Found in southern Europe on the island of Sardinia. Uses An excellent ore of the metal silver, but |  | | Book | | mineral or gem society in almost every state and province, attend regular meetings, and go on conducted...by his discovery of the world’s largest diamond mine. Nevertheless, the amateur will surely find many...extent. 59o _The ability of some minerals such as enargite and stibnite to fuse or melt in the flame of a...have come from the Calabona mine at Al- ghero on the Mediterranean island of Sardinia. Similar specimens...rocks. Such an occurrence is the one at the Sullivan mine, Kimberley, B. C. 57 STIBNITE KEYS: Metallic |  | | Book | | mineral pigments. LEFT: Malachite, Bwana M’Kubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22...Namibia * 20 x 18 x 14 cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1 x 1 om Acicular...Brazil * 5 x 3 x 0.6 cm Platy muscovite, José Pinto Mine, Jaguaracu, Minas Gerais, Brazil * 12 x 19 x 6 cm...Malawi * 10 x 10 x 7 cm Calcite, San Sebastian Mine, Charcas, San Luis Potosi, Mexico * 10 x 8 x 6.5...divided by the weight of an Graphite, Black Donald Mine, Renfrew County, Ontario, Canada * 14 x 11 x 10 |
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Calabona Mine, Alghero, Sassari Province, Sardinia, Italy