 | | Journal (issue) | | Institute of Romania Prof. Dr. Gheorghe Damian, President of the Society of Economic Geology of Romania Editor...France Marian Munteanu, Geological Institute of Romania Essaid Bilal, Ecole des Mines, St. Etienne, France...Cuza” University, Iaşi, Romania Ioan Pintea, Geological Institute of Romania Grigore Buia, University...University of Petroşani, Romania Giorgios Christofides, Aristotle University of Thessaloniki, Greece Floarea...Cluj-Napoca, North University Center of Baia Mare, Romania Gheorghe Damian, Technical University Cluj-Napoca |  | | Journal (article/letter/editorial) | | Washington, DC 20560 pohwatp@si.edu Vgvtcjgftkvg Cavnic, Romania T he minerals of the tennantite group are...they are not only important ores of copper and silver, they can also provide impressive and beautiful...the density may increase to 5.1 with increasing silver content (Berry and Mason 1959). It is brittle and...complex tetrahedrite crystal on matrix from Cavnic, Romania. Carnegie Museum of Natural History specimen...Tetrahedrite also forms a series with freibergite, with silver substituting for copper. Zinc and mercury may also |  | Grancea, Luminita, Bailly, Laurent, Leroy, Jacques, Banks, David, Marcoux, Eric, Milési, Jean, Cuney, Michel, André, Anne, Istvan, Dumitru, Fabre, Cécile (2002) Fluid evolution in the Baia Mare epithermal gold/polymetallic district, Inner Carpathians, Romania. Mineralium Deposita, 37 (6) 630-647 doi:10.1007/s00126-002-0276-5 | Journal (article/letter/editorial) | | gold /polymetallic district, Inner Carpathians, Romania Received: 20 November 2000 / Accepted: 16 November...Springer-Verlag 2002 Abstract The Baia Mare district (Romania) represents a complex segment of the Neogene/Quaternary...the largest deposits. Ore fluids at Baia Sprie, Cavnic and Sasar deposits had temperatures of 320 to 150...IPEG Maramures, Victoriei 146, Baia Mare 4800, Romania progressively lower temperatures. The halogen...extends from Slovakia, Hungary and Ukraine to Romania, includes some important epithermal goldpolymetallic |  | | Journal (article/letter/editorial) | | performed on the two major Miocene mining districts of Romania, Baia Mare and Apuseni Mountains. These two districts...Bucharest, 1, N. Balcescu Avenue, 70111, Bucharest, Romania J.P. Milési BRGM, REM/MESY 3, avenue C. Guillemin...Keywords Lead isotopes Æ Epithermal Æ Porphyry Æ Romania Æ Carpathians Introduction The Southern Apuseni...important copper, gold, silver, lead and zinc mines of Romania (Baia Sprie, Cavnic, Sasar, Rosia Poieni...extends from Slovakia through Hungary and Ukraine to Romania. This volcanic area includes some important epithermal |  | | Journal (article/letter/editorial) | | BaseMetals-Gold HydrothermalOre Deposits of Baia Mare, Romania BARBU LANG Abstract The basemetals-goldhydrothermaldepositsnear...depositsin the Gutii Mountains near Baia Mare, Romania, have Mountains consist of a unit of the Neo-...km from central Slovakiaand Hungary to central Romania (Fig. 1). Volcanic activity began in the early...east. However, 1336 ORE DEPOSITS, BAIA MARE, ROMANIA recent data permit a reevaluationof this relatively...SlovakJanand Hungarian units to the Gutii Mountains of Romania. The second trend, northwestsoutheast, extends |  | | Journal (issue) | | Zacaminte) Founded 1910 by the Geological Institute of Romania VOL. ISSN 1220-5648 85 No. 1 CONTENT page...some Neogene magmatites of |Metaliferi Mts. – Romania ………………………… 1 Gheorghe C. POPESCU, Antonela NEACŞU...porphyry copper deposits from Metaliferi Mountains (Romania) …..…………….……. 7 Essaid BILAL, Fernando Machado...Cireşata porphyry deposit, Metaliferi Mountains, Romania ….……………… 19 S. MIHAI, M. ZLĂGNEAN, S. HALGA Mining...porphyry Cu-Au systems at Voia, Metaliferi Mts., Romania ……………………………………………………………………………………………......… 38 Ion |  | | Catalog/List | | has been the source of fine Cobalt, Copper, and Silver minerals for many years now. Talmessite is one... May 4, 2014 | 12:00 PM CT 15 52011 NATIVE SILVER Batopilas, Andres del Rio District, Mun. de Batopilas...an old Silver mining camp characterized by ore bodies composed of fabulously rich Native Silver usually...Within those veins, crystals of virtually pure Silver sprout from the walls of the ore zone. This specimen...“herringbone” pattern mixed with “wires” of Native Silver that, if straightened, would measure close to 2 |  | Damian, Gheorghe, Buzatu, Andrei, Apopei, Andrei Ionuţ, Damian, Floarea, Maftei, Andreea Elena (2021) Hydrothermal Sphalerites from Ore Deposits of Baia Mare Area. Minerals, 11 (12) 1323 doi:10.3390/min11121323 | Journal (article/letter/editorial) | | Ioan Cuza” University of Ias, i, 700505 Ias, i, Romania; andrei.buzatu@uaic.ro (A.B.); andrei.apopei@uaic...Technical University of Cluj-Napoca, 430083 Baia Mare, Romania; floareadamian@yahoo.com Institute for Interdisciplinary...Ioan Cuza” University of Ias, i, 700057 Ias, i, Romania; andreea.maftei@uaic.ro Correspondence: gheorghe...from the Baia Mare and Oas, areas (northwestern Romania). Sphalerite samples were analyzed with an electron...and Oas, areas. The sphalerites from Baia Sprie, Cavnic, Iba, Turt, Penigher, and Breiner have a low Fe |  | | Journal (issue) | | of ten pieces in this quality have been seen. Romania This past summer there has been an important find...find is certainly notable. From the Boldul Mine in Cavnic there was a find of attractive calcite/quartz/chalcopyrite...crystals); cinnabar in red botryoidal crystalline from Cavnic; and very nice, for the locality, realgar from...(crystals to 5 mm on pyrite) and wolframite from Cavnic (crystals to l cm+). The latter very high quality...Fifties, i.e. chiastolite crystals from Madera County, CA. They used to be very common, almost ubiquitous |  | | Catalog/List | | CHALCOPYRITE ON QUARTZ (8cm x 6cm x 3cm) Cavnic, Romania. Very attractive flat based piece with sugary...OLIVENITE (5cm x 3cm x 3cm) Majuba Hill Mine, Pershing County, Nevada, U.S.A. Area 4 x 2.5 cm richly covered...(3.5cm x 2.5cm x 2cm) Majuba Hill Mine, Pershing County, Nevada, U.S.A. Very rich little specimen of small...£28 29. NEPTUNITE (5cm x 3cm x 1.5cm) San Benito County, California, U.S.A. Terminated very bright black...£22 31. QUARTZ ON PYRITE (7cm x 5cm x 5cm) Cavnic, Romania. Radiating group of terminated white quartz |  | | Journal (article/letter/editorial) | | Cirotan (Indonesia), Orcopampa (Peru) and Cavnic (Romania). In these deposits, the manganiferous minerals...boiling, Cirotan, Indonesia, Orcopampa, Peru, Cavnic, Romania. SOMMAIRE Les minéraux de manganèse, fréquemment...soufre, Cirotan (Indonésie), Orcopampa (Pérou) et Cavnic (Roumanie). Dans ces gisements, les minéraux de...ébullition, Cirotan, Indonésie, Orcopampa, Pérou, Cavnic, Roumanie. INTRODUCTION GEOLOGICAL SETTING Manganiferous...deposition. In the Cavnic mine, in the Baia Mare mining district, northern Romania, they crystallized |  | | Book | | Udubaşa (1938, Ocnele Mari, Romania) Director of the Geological Institute of Romania, Bucharest; President...President of the Mineralogical Society of Romania; Member of the Commission for New Minerals and Mineral Names...and about 100 articles - one-third outside of Romania. Rudolf Duda (1944, Vojany, Slovakia) Head of the...Hungary (Sándor Szakáll) Poland (Ewa Kos/.owska) Romania (Gheorghe Udubasa) Slovakia (Rudolf Duda) Ukraine...Hungary (Sándor Szakáll), Poland (Ewa Kos/.owska). Romania (Gheorghe Udubasa), Slovakia (Rudolf Duda). Ukraine | | | Book | | eum. Kosice. SLK; GIR = Geological Institute of Romania, Bucharest, ROM; GM= Gold Museum, Brad, ROM : GYV...data. Bogdan Marinescu (Geological lnstilllte of Romania): Necolai Terteleac (De. ign-Art-Foto. Bucharest):...Gheorghe llinca. Mihai Tatu (Geological lnstillltc of Romania, Bucharest): Marian Lupule cu (Univcr. ity of Bucharc...a) ROM Porubsky potok. Poruba ood Vihorlmom SLK Cavnic('') (Kapnikbanya) ROM Ciclo,•a Montan:,(?) (Csikto...deposit. which partly extends southward i1110 Romania. Genetic Types of Mineral Occun·ences early all |  | | Report (issue) | | a summer 2017 find at Quan Zhou city, Yong Chun County, Fujian Province. Gemmy, lushly blue-purple cubic...Fluorite, 4.3 cm, from Quan Zhou City, Yong Chun County, Fujian, China. The Arkenstone specimen and photo...a locality—not further specified—in Williamson County, Texas. These are loose floral clusters and stalactiform...yellow-green. Calcite, 6.7 cm, from Williamson County, Texas. Barnett Fine Minerals specimen and photo...a large, gorgeous rhodochrosite from Cavnic, Maramures, Romania; and below it is one of John’s three |  | | Journal (article/letter/editorial) | | 29 January 2015 FRENCH CREEK IRON MINE, CHESTER COUNTY, PENNSYLVANIA M any minerals described in this...locality is the French Creek iron mine, Chester County, Pennsylvania, an occurrence worthy of consideration...example of chalcopyrite from French Creek, Chester County, Pennsylvania. The 10-cm-wide specimen has chalcopyrite...mines at Rossie, St. Lawrence County, at the Sterling mine, Jefferson County, and in very large crystals...associated with brookite in quartz at Ellenville, Ulster County, New York. In Virginia, chalcopyrite crystals to |  | | Journal (article/letter/editorial) | | informal family is polybasite, a relatively common silver ore mineral that is rare as fine specimens. Although...essentially a silver antimony sulfide in which copper occurs in substitution for silver in amounts up...(Ag,Cu)16(As,Sb)2S11. Pseudomorphs of stephanite, silver, pyrite, and marcasite after polybasite have been...stephanite, tetrahedrite and other silver and lead sulfosalts; silver; gold; acanthite; and a wide assortment...states. For example, many of Colorado’s important silver localities contain polybasite (Eckel 1997). Some |  | Tămaș, Călin Gabriel, Andrii, Mădălina Paula, Kovács, Réka, Drăgușanu, Sergiu, Cauuet, Béatrice (2021) Sphalerite Composition in Low- and Intermediate-Sulfidation Epithermal Ore Bodies from the Roșia Montană Au-Ag Ore Deposit, Apuseni Mountains, Romania. Minerals, 11 (6) 634 doi:10.3390/min11060634 | Journal (article/letter/editorial) | | Montană Au-Ag Ore Deposit, Apuseni Mountains, Romania Călin Gabriel Tămas, 1,2 , Mădălina Paula Andrii...1, M. Kogălniceanu Street, 400084 Cluj-Napoca, Romania; calin.tamas@ubbcluj.ro (C.G.T.); kovacsreka056@gmail...in the Apuseni Mountains and Baia Mare region, Romania. Two compositional trends of the Fe vs. Mn content...intermediate-sulfidation Au-Ag Ore Deposit, Apuseni Mountains, Romania. Minerals 2021, 11, 634. https://doi.org/10.3390/...ore deposit from the South Apuseni Mountains (Romania) consists of both low-sulfidation and intermediate-sulfidation |  | | Book | | minerals (the origin of native copper and native silver under the reduction conditions in the cementation...is associated with cuprite, 1nalachite, azurite, silver, chalkocite, bornite and other minerals. The largest...Russia; crystals up to 30 mm ('3/i6in) were found Silver, 52 mm, Freiberg, Germany Copper, 120 mm, Keweenaw... 9 Silver Ag CUBIC ••• Properties: C - silver-white, tarnishes gray to black; S - silver-white;...minerals. The best specimens of crystallized and wire silver come from Kongsberg, Norway, where wires up to |  | | Book | | minerals (the origin of native copper and native silver under the reduction conditions in the cementation...is associated with cuprite, malachite, azurite, silver, chalkocite, bornitc and other minerals. The largest...Russia; crystals up to 30 mm ( : Vie in) were found Silver. 52 mm. Freiberg. Germany Copper. 120 mm. Keweenaw... f I Silver Ag CUBIC • • • Properties: C silver-white, tarnishes gray to black: S - silver-white;...minerals. The best specimens of crystallized and wire silver come from Kongsberg, Norway, where wires up to |  | | Journal (article/letter/editorial) | | in Chester County, Pennsylvania; the Cofer deposit in the Mineral district of Louisa County, Virginia...occurrences of Sevier County and with tetrahedrite and galena in Montgomery County, Arkansas. Fine bournonite...known are those from the Park City district, Summit County, Utah, where at one time crystals reaching several...University] at 07:53 01 January 2015 Daly-Judge, and Silver King. It has also been reported from the Albion...mine in the Little Cottonwood district, Salt Lake County, Utah. It was an ore mineral in scattered Arizona |  | | Journal (issue) | | Crystals from the Flambeau Mine Near Ladysmith, Rusk County, Wisconsin Perry M. Ponshock and William S. Cordua...The Flambeau Mine, located near Ladysmith, Rusk County, Wisconsin, produced nearly 1.8 million tons of...minerals of the Palermo Mines in North Groton, Grafton County, New Hampshire. He has also generously contributed...and/or joint surfaces, at times intergrown with silver. Small clusters and arborescent clusters also occur...Low-grade AND high-grade. Gold, mostly. Platinum. Some silver. Roo-bidium and gallium, too. Low-grade all over |  | | Journal (article/letter/editorial) | | November 2014 Covellite Summitville, Rio Grande County, Colorado Two minerals are typically formed when...localities as the Loudville mine, Easthampton, Hampshire County, Massachusetts; Mineral Hill, WakeFigure 1. A surprisingly...photo. field, Carroll County, New Hampshire; the Ecton mine, Montgomery County, Pennsylvania; and many...quarries such as those around Prospect Park, Passaic County. It was a minor ore mineral in many districts including...Mineral district, Louisa County, and the Virgilina district, Halifax County, Virginia; the Ducktown district |  | | Report (issue) | | (Offenbánya), Săcărı̂mb (Nagyág), and Cavnic (Kapnikbánya), Romania. From Adervielle, Hautes-Pyrénées...Schellbourne, White Pine Co., Nevada; and from Butte, Silver Bow Co., Montana. Name: For the originally reported |  | | Book | | cuprite, and some native elements such as gold, silver, copper, and diamond. Crystals bounded by faces...an activator, usually manganese, copper, lead, silver, uranium, elements of rare earths, water molecules...Cementation zones are usually enriched with gold, silver, and some other metals, whose content in unweathered...ores of silver-lead-zine in quartz-carbonate veins; the formation of nickelcobalt-bismuth-silver-uranium...radiating with gamma rays. There are, however, some silver-containing minerals which lose their colour for |  | | Book | | cuprite, and some native eJements such as gold, silver, copper, and diamond. Crystals bounded by faces...an activator, usually manganese, copper, lead, silver, uranium, elements of rare earths, water molecules...Cementation zones are usually enriched with gold, silver, and some other metals, whose content in unweathered...ores of silver-lead-zinc in quartz-carbonate veins; the formation of nickelcobalt-bismuth-silver-uranium...radiating with gamma rays. There are, however, some silver-containing minerals which lose their colour for |
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