 | | Report (issue) | | Variation in fineness of gold with depth, Lily mine, Transvaal, South Jlfrica ---------------------...complete series of solid solutions with silver, copper, nickel, platinum, and palla:dium. Gold is commonly...complete series of solid solutions with silver, copper, nickel, palladium, and platinum. In association...group Ib of the periodi.c table, as do silver and copper. Its atomic number is 79, and atomic weight is...Schwartz, 1944) are pyrrhotite, arsenopyrite, chalcopyrite, sphalerite, galena, molybdenite, tellurides |  | | Journal (article/letter/editorial) | | uglies,” yet they are not only important ores of copper and silver, they can also provide impressive and...superb example of the mineral. It was from Saxony, Germany, and was to me at that time a thing of beauty and...National University] at 06:43 31 December 2014 mine in Colorado, and they found virtually the entire...silver substituting for copper. Zinc and mercury may also substitute for copper in some specimens. It is...most common, and is an important ore mineral of copper and a minor source of silver. In fact, in some |  | | Journal (issue) | | Fremontite. Canion City, Colorado Delafossite after Copper (?). Bisbee, Arizona Chalcocite after Sphalerite...through: (a) the loss of a constituent-e.g., native copper 396 Bulletin American Museum of Natural History...after calcite type, also tetrahedrite after chalcopyrite, siderite and rhodochrosite after calcite, albite...albite after adularia, aragonite after witherite, chalcopyrite after sphalerite.) Adsorption' of this kind...Certain of the pseudomorphs of chrysocolla after copper minerals such as azurite, liro'Pointed out by Miers |  | Bauer, Matthias E., Seifert, Thomas, Burisch, Mathias, Krause, Joachim, Richter, Nancy, Gutzmer, Jens (2019) Indium-bearing sulfides from the Hämmerlein skarn deposit, Erzgebirge, Germany: evidence for late-stage diffusion of indium into sphalerite. Mineralium Deposita, 54 (2) 175-192 doi:10.1007/s00126-017-0773-1 | Journal (article/letter/editorial) | | from the Hämmerlein skarn deposit, Erzgebirge, Germany: evidence for late-stage diffusion of indium into...Accepted: 27 October 2017 # Springer-Verlag GmbH Germany 2017 Abstract At the Hämmerlein skarn deposit...deposit, located in the western Erzgebirge (Germany), a major cassiteritedominated Sn mineralization stage is...found to be closely associated with Inbearing chalcopyrite. The highest In concentrations in sphalerite...the initial formation of both sphalerite and chalcopyrite. Textural relations illustrate that the diffusion |  | | Journal (article/letter/editorial) | | 2012 Olivenite TSUMEB MINE, TSUMEB, OSHIKOTO REGION, NAMIBIA H ydrothermal copper deposits are dominated...their primary mineralogy by copper-bearing sulfide minerals such as chalcopyrite. When these deposits are...2005), the sulfides become unstable and oxidize. Copper released from this reaction can form a plethora...“supergene” minerals, ranging from simple native copper and copper oxides to complex secondary minerals such...specimen of olivenite from the worldfamous Tsumeb mine in Namibia, where attempts at specimen mining have |  | | Report (issue) | | Color: Pale gray to steel-gray; tarnishes easily to copper-red or violet-gray. Luster: Metallic, brilliant...Group: F d3m. a = 9.41 Z=8 X-ray Powder Pattern: Mine la Motte, Missouri, USA. 2.86 (100), 1.670 (80)...00 (1) Littfeld, Germany; corresponds to (Co1.33 Ni1.60 Fe0.03 )Σ=2.96 S4.00 . (2) Mine la Motte, Missouri... [Vogtland=Saxony or Thuringia ck??, not in Rand-McNally, mindat.org??] Germany; by electron microprobe...Cu–Ni–Fe sulfides. Association: ullmannite. Chalcopyrite, pyrrhotite, galena, sphalerite, pyrite, millerite |  | | Journal (article/letter/editorial) | | 104, pp. 365–384 The Raúl-Condestable Iron Oxide Copper-Gold Deposit, Central Coast of Peru: Ore and Related...CH-1205 Genève, Switzerland Abstract The iron oxide copper-gold (IOCG) Raúl-Condestable deposit is located...deposition sequence (hematite-magnetite-pyrite-chalcopyrite) occurring in and near feeder structures, and...reduced deposition sequence (pyrrhotite-pyrite-chalcopyrite) found in volcaniclastic rocks and veins. Early...values are observed for pyrrhotite, pyrite, and chalcopyrite. The δ34S values depend on the stratigraphic |  | | Book | | approximately 5 cm taii and is from the Eagle's Nest mine, Piacer County, California. Ross Beaty Collection.... . • . . . . . • • . . • . . . • . . . .22 Chalcopyrite •• , . , . • . • . . . . • • • , • • , . ....• ...... • ....... • ...................... 32 Copper .......•........ . ..... . .. . ... 34 Covellite.... 14 Chalcocite . ........ ..... .. .... Chalcopyrite • ....... . . . . ... .. ..... ......22 ....Iii= Iii= ~ Bismuth .... .. •••. , . ••• _. •• Copper . . . . •. . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | vari- 3 eties. In the Joplin lead and zinc district of southwest Missouri the minerals crystallizing...covellite (copper sulfide) by heating powdered sphalerite (zinc sulfide) in a water solution of copper sulfate...blueblack powder (covellite) appears. In the Joplin district covellite after sphalerite has been found, so...naturally are the minerals which have been formed on .mine-tools, prehistoric implements, old coins and other...Museum may be seen vases and artifacts made of copper showing traces of the green coloring of malachite |  | | Journal (article/letter/editorial) | | Strashimirov Æ Rumen Petrunov Milko Kanazirski Porphyry-copper mineralisation in the central Srednogorie zone...2002 Ó Springer-Verlag 2002 Abstract The porphyry-copper systems in the central part of the Srednogorie...occurrences, all of them within the Panagyurishte ore district. The hydrothermal systems are related to Late...the major gold-copper mine at Chelopech located 10 km from the Elatsite porphyry-copper deposit. Mineralisation...Elatsite deposit, by an assemblage of bornite, chalcopyrite, platinum group element (PGE) phases, Co-Ni |  | Haluzová, E., Ackerman, L., Pašava, J., Jonášová, Š., Svojtka, M., Hrstka, T., Veselovský, F. (2015) Geochronology and characteristics of Ni-Cu-(PGE) mineralization at Rožany, Lusatian Granitoid Complex, Czech Republic. Journal of GEOsciences, 60 (4) 219-236 | Journal (article/letter/editorial) | | mineralization itself is represented by pyrrhotite, chalcopyrite and pentlandite; the latter is commonly replaced...century, Rožany deposit was important source of copper, and in the 17th century it was mined for Ni. The...characterized by predominant occurrence of pyrrhotite, chalcopyrite, minor Fe–Ni sulphides (violarite, pentlandite)...pyrrhotite–pentlandite ore, (b) massive pyrrhotite–chalcopyrite ore and (c) disseminated ore. Within these types...sector field ICP–MS (Element 2, Thermo Scientific, Germany) at the IG CAS. The internal precision was always |  | | Journal (article/letter/editorial) | | thermoelectric power values are shown in microvolt/o C. with copper as the reference metal. Most of the experimental...GALENA PbS 160 _248 -490 _210 150 max. 2100 CHALCOPYRITE CuFeSg PYRRHOTITE Fer-xS MILLERITE NiS l4...in Fig. 2. The specimen was clamped between two copper blocks, the top one was heated with steam, the...Mexico Cornwall Bristol, Conn. Bristol, Conn. Thuringia StromeyeriteAgCuS Ontario Saxony Arizona Bornite...Bornite Cu6FeSl Butte, Mont. Sangerhausen, Germany Silverton, Colo. Bisbee, Ariz. 265 495 / .) 190 250 |  | | Catalog/List | | faces. 3-tx2x2". £11.50. 3. ALLANITE. Mary Kathleen Mine, queensland, Australia. Sharp, lustrous black, well...2txltxl".£4.75. APATITE. Ehrenfriedersdorf, Saxony, Germany. Specimen A - Select, transparent, pale greenish-blue...lxfxf". £4.50. 11. 12. 13. -2AZURITE. Ting-Tpng Mine, Gwennap, Cornwall. Rich, bright blue small sharp...colourful specimen. 3x2xlf". 1:8.00. BARYTES. Ladywash Mine, Eyam, Derbyshire. Lustrous, creamy, tabular bladed...t"· £6.50. NATIVE BISMUTH. Schneeberg, saxony, Germany. Choice, very pure, bright metallic 15. silvery |  | | Catalog/List | | .... . Utah Toelle County, Gold Hill, Gold Hill mine --=.rransparent micro crystals on limonite gossen........ . AJOITE Copper aluminum silicate' Arizona Pima County, Ajo, New Cornelia mine Sky blue micro xls...silicate CLEAVELANDITE Virginia Amelia, Rutherford mine #2 Lustrous white twin xl groups, minor muscovite...ALLEMONTITE An intergrowth of arsenic and antimony Germany Harz Mountains, Andreasberg Rich gray botryoidal...Lead telluride • Colorado Saguache County, Klondike mine Brilliant metallic tin white cleavable mass in quartz |  | | Book | | and Technology Brennhausgasse 14 09596 Freiberg Germany Library of Congress Cataloging-in-Publication...for Geosciences and Natural Resources Hannover, Germany Preface The extraordinary growth of the computer................ 62 3 .2.8.1 Letneye, Dombarovsk District ....................................................... 62 3.2.8.2 Komsomolskoye, Mednogorsk District ...................................... 64 3.2.8.................... 65 3.2.8.6 Bakr-Tau, Baimak District, Bashkirian Republic ....................... 66 |  | | Journal (article/letter/editorial) | | 1007/s00126-006-0086-2 ARTICLE Melissa J. Gregory Copper mobility in the Eastern Creek Volcanics, Mount...Palaeoproterozoic Eastern Creek Volcanics are a series of copper-rich tholeiitic basalts which occur adjacent to...to the giant sediment-hosted Mount Isa copper deposit in Queensland, Australia. The volcanic rocks are...provide evidence for the local mobilisation of copper during regional greenschist facies metamorphism...interpretation is based on the observation that copper-bearing magmatic titanomagnetite was destabilised |  | | Journal (article/letter/editorial) | | troilite, Fe-rich pentlandite, chalcopyrite, cubanite, talnahite, bornite and copper (low sulfur association);...second one is composed of monoclinic pyrrhotite, chalcopyrite, Ni-rich pentlandite and pyrite (high sulfur...gabbro-dolerites. Keywords: Norilsk 1 intrusion; platinum–copper–nickel deposits; disseminated ores; mineralogy... Introduction The platinum–copper–nickel deposits of the Norilsk District are located in the northwestern...Norilsk 1 deposit) is located between the Zapolyarniy mine in the north and The taxite gabbro-dolerite of the |  | | Journal (article/letter/editorial) | | crystal'ized cinnabar which comes from the Culver-Baer mine, Sonoma Co., Calif. Colorado—An interesting article...Michigan, Ann Arbor, Mich.) The Micanite pegmatite district lies across the Park-Fremont County line in south-central...village of Micanite. The pegmatite of the Micanite district contains unusually large 378 ROCKS AND MINERALS...operating a cobalt mine in the Blackbird district of Lemhi Co., Idaho. This mine is reported to be the...the largest cobalt mine in the U. S. Reliable reports say that plans are being made to construct a large |  | Runyon, Simone E., Seedorff, Eric, Barton, Mark D., Steele-MacInnis, Matthew, Lecumberri-Sanchez, Pilar, Mazdab, Frank K. (2019) Coarse muscovite veins and alteration in porphyry systems. Ore Geology Reviews, 113. 103045 doi:10.1016/j.oregeorev.2019.103045 | Journal (article/letter/editorial) | | none. JO U R N AL PR E- Keywords: porphyry copper, greisen, coarse muscovite alteration, hydrothermal...and alteration occur in porphyry copper and porphyry molybdenum-copper systems within the Laramide arc...arc in Arizona, as well as at the Yerington district in Nevada. This work describes coarse muscovite in...to 12 km: MiamiInspiration, Sierrita-Esperanza, Copper Basin (Crown King), Granite Mountain (roots of...(Kelvin-Riverside district), E- Sycamore Canyon, the New Cornelia mine (Ajo district), and two systems |  | | Catalog/List | | ...... Utah Toelle County, Gold Hill, Gold Hill mine ~ransparent micro crystals on gossen with minor...resembles lapis AJOITE Copper aluminum silicate Arizona Pima County, Ajo, New Cornelia mine Sky blue micro xls...Derby mine White xlline lamellar mass with minor lepidolite . Virginia Amelia, Rutherford mine !r2 Lustrous...ALLEMONTITE An intergrowth of arsenic and antimony Germany Harz Mountains, Andreasberg Rich gray botryoidal...Lead telluride Colorado Saguache County, Klondike mine Cleavage plates in quartz with pyrite ......... |  | | Journal (article/letter/editorial) | | associations from Greenland, Canada, Morocco and Germany were investigated with respect to their sulfide...and pyrite) are common and occur with minor chalcopyrite and sphalerite, but they are rare and in cases...Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, Germany DOI: 10.1127/njma/2018/0095 eschweizerbart_xxx...etHier 1984; o’driscoll et al. 2009). Porphyry copper deposits are linked to dioritic to andesitic magmatism...magmatism, common sulfides here are chalcopyrite and other Cu-sulfides (e.g. bornite and cubanite), molybdenite |  | | Journal (article/letter/editorial) | | These were said to have occurred in the Jungfer mine at Mfisen in Westphalia, associated with chalybite...placodine was subsequently found at the Jungfer mine, and the properties of the material agreed with...baryte, anhydrite, and gypsum, at Eisleben in Thuringia, and named maucherit by Griinling (1913), after...structure in calcite at the Moose Horn mine, Elk Lake, Temiskaming district, Ontario. An analysis of this material...Ontario Museum of Mineralogy), Eisleben, Thuringia, Germany (type locality). Three specimens, lt--St |  | | Journal (article/letter/editorial) | | sulphides formed at the expense of disseminated chalcopyrite (presumably argentian)± galena as the hypogene... to Yemen, in the south (Fig. 1). The Zalm gold mine is the most prominent geologic landmark in the area...displaying very characteristic secondary minerals of copper and other metals, possibly including precious....investigation of the ancient gold workings at the Zalm mine. Also, Jackson et al. (1963) studied the area as...studied geology and gold mineralization at the Zalm mine during 4 exploration in the area (Figs. 1 and |  | | Journal (article/letter/editorial) | | directly for their metal content (such as native copper) or from which we can extract metals through a...pollutants responsible for the generation of acid mine-waste runoff, for production of acid rain, and for...processes (such as recently documented losses of copper, nickel and other metals from smelters in the Norils’k...typical example of “chalcopyrite disease”, in which finely dispersed grains of chalcopyrite and pyrrhotite...not a single mechanism by which all samples of chalcopyrite disease have formed; instead, whereas coprecipitation |  | | Journal (article/letter/editorial) | | Siegenite-bearing assemblages found at the Great Orme Mine, Llandudno, North Wales R. A. Ixer C. J. Stanley...Valley-type ores of the Southeast Missouri Lead District, U.S.A. (llagni, 1986) and the ubiquitous presence...Orme Mine especially those that may have been exploited in the Bronze Age. The Great Orme Mine (SH772831)...Here epigenetic copper mineralization cuts Asbian carbonates and belongs to the copper-dolomite class...orefields. Indeed, this copper mineralization is the first example of the copper-dolomite association to |
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