 | Shalaby, Ibrahim M., Stumpfl, Eugen, Helmy, Hassan M., El Mahallawi, Mahmoud M., Kamel, Omar A. (2004) Silver and silver-bearing minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt. Mineralium Deposita, 39 (5) 608-621 doi:10.1007/s00126-004-0427-y | Journal (article/letter/editorial) | | minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt Received: 22 August...2004 Abstract The Um Samiuki Zn–Cu–Pb–Ag mineralisation, south Eastern Desert, Egypt is hosted by felsic...at the top of rhyolitic breccia in the Western and Eastern mine areas. In each occurrence, a bornite-bearing...magnetite are accessory phases. Covellite and digenite are common secondary minerals. Bornite, tetrahedrite–tennantite...and covellite accommodate 80% of silver in the Um Samiuki deposit. Ag was incorporated in the crystal structure |  | | Report (issue) | | c = 7.803 Z = 32 X-ray Powder Pattern: Foster mine, Cobalt, Canada. 2.606 (100), 2.070 (70), 3.51 (60)...(2) 60.7 24.8 14.8 Total 100.0 100.3 (1) Foster mine, Canada; by electron microprobe, corresponding to...calcite (Foster mine, Canada); bornite, chalcocite, chalcopyrite, djurleite, digenite, tennantite, stromeyerite...aragonite (Sedmochislenitsi mine, Bulgaria). Distribution: In Canada, from the Foster mine, Coleman Township,...Echo Bay mine, Great Bear Lake, Northwest Territories. In the USA, at the Colorado Central mine, Georgetown |  | | Journal (article/letter/editorial) | | Shield. The Jabal Zalm area is located in the western Arabian Peninsula that is occupied by the so-called... to Yemen, in the south (Fig. 1). The Zalm gold mine is the most prominent geologic landmark in the area...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...Eberlé (1999) carried out exploration of the Zalm mine and the surrounding area. Agar (1985, 1988) recognized |  | | Journal (article/letter/editorial) | | Proterozoic rocks of El Beida area, south Eastern Desert, Egypt M. A. Obeid, A. M. Hussein and M. A. Abdallah Synopsis...Synopsis The El Beida area of the Eastern Desert, Egypt, comprises a wide variety of Late Proterozoic rocks...Eastern Desert of Egypt.25 In ancient times gold came largely from Nubia in south Egypt. Crushing implements...mines—in particular, Fawakhir, Barramiya, Sukkari and Um Garayat. 33 Between 1902 and 1958 about 6.9 t of...Late Proterozoic rocks of the Eastern Desert of Egypt: the dextral northwest Qena–Safaga, the dextral |  | | Journal (article/letter/editorial) | | veins in the Hamash area, South-Eastern Desert, Egypt H. M. H e l m y 1 and R. Kaindl 2 1 Geology Department...Faculty of Science, El Minia University, E1 Minia, Egypt Institut ffir Mineralogie-Kristallographie und Petrologie...Desert of Egypt. Four generations of genetically related quartz veins occur in the Hamash mine area. Two...were altered to secondary chalcocite, bornite and digenite and a second generation of pyrite (PII and PIII)...Generationen von Quarzg~ingen kommen im Gebiet der Hamash Mine vor. Zwei Alterationstypen sind in der N/ihe der |  | | Book | | blue-white copper sulphides of the chalcocite—anilite—digenite—djurleite group; ‘TiO, mineral’ for uncharacterized...during mining and milling, are introduced into mine concentrates and mill products. Often they have...chalcopyrite, magnetite and pentlandite. Kambalda, Western Ib Australia IImenite and haematite. Unknown...softer copper and silver sulphides. Bornite (brown-red, left) has an symplectite-like intergrowth with,...Polished block, plane polarized light, x 80, air 250 um I, right) also is complexly intergrown with chalcocite |  | | Journal (article/letter/editorial) | | replacement products represented by sulfides (covellite, digenite, and chalcocite), native copper, cuprite, carbonates...lower part of the High Folded Zone, a part of the Western Zagros Fold-Thrust Tectonic Zone of Iraq (Fig....ridges of the Pila Spi Formation, whereas the western part trends E/W where the dolomitic limestone ridges...studies. According to Jassim and Buday (2006), the red clastics of the Gercus Formation were deposited as...minerals, are composed of sulfides (chalcocite, digenite, and covellite), native copper, oxide (cuprite) |  | Demir, Yilmaz, Uysal, Ibrahim, Burhan Sadiklar, M., Sipahi, Ferkan (2008) Mineralogy, mineral chemistry, and fluid inclusion investigation of Köstere hydrothermal vein-type deposit (Gümüşhane, NE-Turkey) Neues Jahrbuch für Mineralogie - Abhandlungen, 185 (2) 215-232 doi:10.1127/0077-7757/2008/0122 | Journal (article/letter/editorial) | | felsic volcanic rocks in the northeastern Black Sea Region of Turkey. Total silver content of the Köstere...formation of Köstere deposit. Key words: Köstere mine, ore mineralogy, mineral chemistry, fluid inclusions...Introduction Ore deposits found in the east Black Sea region of Turkey are divided into four main zones...on E-W line in the region, and includes Köstere mine, was studied by various researchers (Buser & Cvetic...et al. 2007). The Köstere mine, which is situated in the eastern Black Sea region of Turkey with the |  | | Journal (article/letter/editorial) | | Bisha Volcanic-Associated Massive Sulfide Deposit, Western Nakfa Terrane, Eritrea C. TUCKER BARRIE,† 29 Euclid...deposit in a newly discovered VMS district in western Eritrea. The host stratigraphic section comprises...enrichment, with predominant chalcocite, and lesser digenite, covellite, and bornite, along with pyrite, minor...geologic mapping, and stream sediment sampling in western Eritrea. Sampling of the surface gossan in 1999...the Neoproterozoic volcanosedimentary terrane of western Eritrea. Presently, the Bisha deposit has 39.01 |  | | Journal (article/letter/editorial) | | to double through 2050, exceeding production. The mine production will peak in a narrow window of time...carbonate rocks) occurring between red occurring beds of continental red beds continental origin1).and (Figure...Currently, economic resources sustain an expected mine life of 50–60 years at a production rate of 30 Mt...(from 1936). In 1936 the construction of the Lena mine started, and later it was decided to build two further...including including 14.468 the Lena mine, 4.026 MtMt in the Nowy Kościół mine (1954–1967) and and 37.914 Mt |  | Sadati, Seyedeh Narges, Yazdi, Mohammad, Mao, Jingwen, Behzadi, Mehrdad, Adabi, Mohammad Hossein, Lingang, Xu, Zhenyu, Chen, Mokhtari, Mir Ali Asghar (2016) Sulfide mineral chemistry investigation of sediment-hosted stratiform copper deposits, Nahand-Ivand area, NW Iran. Ore Geology Reviews, 72. 760-776 doi:10.1016/j.oregeorev.2015.09.018 | Journal (article/letter/editorial) | | they are surrounded by immature, coarse-grained red-bed sediments. These deposits are the products of...long lived flow of copper-enriched fluids through red beds that may be continuing to the present day )Hitzman...ranging from the Cu-rich sulfides or chalcocite–digenite (Cu2S–Cu1.75S) series, to the Cu-poor sulfides...the Tabriz basin. This area is situated in the western Alborz–Azerbaijan geostructural zone of Iran (Nabavi...with gypsum 761 beds overlain by Upper Cambrian red sandstone and other Paleozoic and Mesozoic sedimentary |  | Mikulski, Stanisław Z., Oszczepalski, Sławomir, Sadłowska, Katarzyna, Chmielewski, Andrzej, Małek, Rafał (2020) Trace Element Distributions in the Zn-Pb (Mississippi Valley-Type) and Cu-Ag (Kupferschiefer) Sediment-Hosted Deposits in Poland. Minerals, 10 (1) 75 doi:10.3390/min10010075 | Journal (article/letter/editorial) | | djurleite ≤ 9080 ppm, yarrowite ≤ 6614 ppm, and digenite ≤ 3545 ppm). Silver minerals and alloys, as well...Craton (Laurussia-Baltica) from mosaic terranes in Western and Central Europe (Gondwana blocks, e.g., [17]...through the Zn-Pb ore deposit of the Pomorzany mine modified mine modified after [22]. after [22]. Ore Mineralization...(1) Late [38],from (2) 6% Early 15% in the Olkusz mine and <2% in the Trzebionka deposit [2,6]. Cretaceous...Pomorzany mine (E) massive crystalline marcasite pyrite (McPy2) with sphalerite (SpDB2) and mine (E) massive |  | | Book (edition) | | sometimes red tinges, cobalt shows pink shades, while iron displays pronounced tones of red, brown, and...specimens. Left: Internal reflections of hematite (red), azurite (blue), and malachite (green). Common...(bottom): Polysynthetic hematite twinning under XPL, red internal reflections are also visible. 5 Twinning...filling. Right (second from top): Late proustite (red internal reflections) filling quartz druse (milky);...structures of various sizes. Right (top): Cinnabar (red internal reflections) replaces fungal filaments; |  | Mitchell, Andrew H. G., Myint, Win, Lynn, Kyi, Htay, Myint Thein, Oo, Maw, Zaw, Thein (2011) Geology of the High Sulfidation Copper Deposits, Monywa Mine, Myanmar. Resource Geology, 61 (1) 1-29 doi:10.1111/j.1751-3928.2010.00145.x | Journal (article/letter/editorial) | | Geology of the High Sulfidation Copper Deposits, Monywa Mine, Myanmar Andrew H. G. Mitchell,1 Win Myint,2 Kyi...Myanmar and 2Myanmar Ivanhoe Copper Company Limited, Mine Site, Monywa, Myanmar Abstract The 50 km2 Monywa...continuation of the Sunda-Andaman magmatic arc through western Myanmar. There are four deposits; Sabetaung, Sabetaung...breccias probably post-date andesite porphyries in the mine area and lack ore-grade copper. Host rocks to mineralization...mineralization is structurally-controlled with digenite-chalcocite in breccia dykes, in steeply dipping |  | | Report (issue) | | Pennsylvania and Klemic and others' (1963) Geology and Urani um Occurrences of the Northern Half of the Lehighton...feldspar in a clay and limonite matrix 2. Zone "B." Red-gray radioactive siltstone containing angular to...biotite in a sericite-chlorite matrix 8 15 3. A. Red subgraywacke 20 feet from ore zone at Prospect 31...The occurrences are in gray to green zones within red bed formations of continental origin. Mineralization...fragments. Pyrite, bornite, chalcopyrite, galena, digenite, chalcocite and covellite have been identified |  | | Journal (article/letter/editorial) | | mineral assemblage including typically chalcocite-digenite (Cu1.85S1.12 and Cu1.99S1.01), covellite (CuS...total replacement of chalcopyrite by chalcocite-digenite during the late hydrothermal stage; and (4) formation...commonly occurs together with enargite or covellite-digenite-pyrite (Ossandón et al., 2001; Rivera et al.,...characterized by Cu-bearing sulfides veinlets containing red hematite, anhydrite, and very little or no pyrite...covellite-digenite (Ossandón et al., 2001) in combination with chalcopyrite, bornite, digenite and/or covellite |  | | Book | | and Iron Mineralization in Pegmatite at the Bemco Mine Prospect, Cranberry Lake, New Jersey. A.H. Vassiliou...Dolostones Adjacent to Mineralized Breccias (Coy Mine, Mascot-Jefferson City District) and Non-Mineralized...been instrumental in discovering the Heath Steel Mine, and we discussed our favorite professor many times...copper-uranium mine. Upon his recommendation and that of his former student, Phil Merritt, the mine was reopened...discovery to an ore deposit . The Lee Creek phosphate mine, which has been producing phosphate rock and phosphate |  | | Journal (article/letter/editorial) | | to l 0 btm in size) and framboidal clusters of digenite, chalcocite and minor covellite, dispersed throughout...comparison with pyrite framboids is presented. Digenite usually dominates over chalcocite among dispersed...monocline, Poland). 1 Shore of the Kupferschiefer Sea; 2 dominant chatcocite; 3 dominant bornite; 4 dominant...Metzler 1984 and Wedepohl 1980, modified) 263 digenite (Cul.sS) and chalcocite (Cu2S). Potter (1977)...Cua.32_ L4S (GoNe 1980)), anilite (Cul.75S), low digenite (CUl.768), djurleite (CUl.93_ 1.96S), low chalcocite |  | | Journal (article/letter/editorial) | | of Science, Menoufia University, Shebin El-Kom, Egypt 4 Centre de Recherches Pétrographiques et Géochimiques... Three such phases were identified at the Nkana mine in Zambia (Brems et al. 2009). They are characterized...the Lower Orebody and Upper Orebody at the Nchanga mine in Zambia (McGowan et al. 2003). The Cu–Co mineralization...recognized in the Kamoto ore deposit, located in the western part of the Katanga Copperbelt (DRC). It was at...bornite, digenite, and chalcocite. Our Re–Os dating was performed on carrollite, bornite, digenite, and chalcocite |  | | Journal (article/letter/editorial) | | OF SULFIDE ASSEMBLAGES IN THE FORMER WILHELMINE MINE, SPESSART, BAVARIA, GERMANY Martin OKRUSCH§ Mineralogisches...mineralization in the abandoned Wilhelmine copper mine, Sommerkahl, Spessart, northwestern Bavaria, Germany...enargite I, pyrite I, chalcopyrite I, bornite I and digenite I. (ii) During a subsequent stage of recrystallization...grains of tennantite II, enargite II, bornite II, digenite II, pyrite II and chalcopyrite II. Minimum temperatures...composition of fine-grained to submicroscopic digenite–bornite intergrowths, exsolved from an initial |  | | Journal (article/letter/editorial) | | UTH-CENTRAL KANS,4S Introduction lands surroundedthe sea (Johnson,1974). Under these conditionsthick sequ...this sea. The easternshoreran north-souththrough Dolomite oœ south-central Kansas. Permian red beds form...arsto tending from north-centralTexas through western parallelthis ancientshoreline.(Johnson,1974). The...south-central Kansas. Chalcocite and 300-œoot-thick red Ninnescah Shale and is straticovelliteare the major...Little informa- The Ninnescahis mainly composedof red shaleswith tion is available,however,on the nature |  | El Desouky, H. A., Muchez, P., Dewaele, S., Boutwood, A., Tyler, R. (2008) Postorogenic Origin of the Stratiform Cu Mineralization at Lufukwe, Lufilian Foreland, Democratic Republic of Congo. Economic Geology, 103 (3) 555-582 doi:10.2113/gsecongeo.103.3.555 | Journal (article/letter/editorial) | | occurrence, is located in the northern part of the western flank of the anticline. This part of the anticline...(chalcopyrite, bornite, and chalcocite) and supergene (digenite, covellite, and minor native copper), with malachite...and metallogenesis remain enigmatic. The Dikulushi mine (Fig. 2), one of the richest (~2.44 Mt of ore with...producing copper-silver mine in the Lufilian foreland. Since exploration of this mine by ANVIL in 1997 to...prospect ~80 km south and ~8 km west of the Dikulushi mine (Fig. 2). Although the copper ore grades at these |  | | Journal (article/letter/editorial) | | vanadium-rich gold ore from the Oroya Shoot, Paringa South mine, Golden Mile, Kalgoorlie: 3. Ore mineralogy, Pb-Te...the giant Golden Mile deposit, Yilgarn Craton, Western Australia is controlled by reverse faults, which...at 300 °C) and increased salinity indicated by digenite-covellite and Cl-bearing altaite. The average...School of Earth and Environment, The University of Western Australia, 35 Stirling Highway, Perth, W.A. 6000...2 School of Earth Sciences, The University of Western Australia, 35 Stirling Highway, Perth, W.A. 6000 |  | Schumer, Benjamin N., Stegen, Ralph J., Barton, Mark D., Hiskey, J. Brent, Downs, Robert T. (2019) Mineralogical Profile of Supergene Sulfide Ore in the Western Copper Area, Morenci Mine, Arizona. The Canadian Mineralogist, 57 (3) 391-401 doi:10.3749/canmin.1800020 | Journal (article/letter/editorial) | | PROFILE OF SUPERGENE SULFIDE ORE IN THE WESTERN COPPER AREA, MORENCI MINE, ARIZONA BENJAMIN N. SCHUMER§* University...from drill hole MOR-4511 in the Western Copper area of the Morenci mine, Greenlee County, Arizona, have...an electron microprobe study on copper sulfides in red bed copper deposits of Alberta. Reich et al. (2010)...investigate trace element chemistry of supergene digenite in Chilean copper deposits. Reich & Vasconcelos...Cu–S Name Formula Cu:S Chalcocite Djurleite Digenite* Roxbyite Anilite Geerite Spionkopite Yarrowite |  | | Journal (article/letter/editorial) | | (Fig. 1), others exsolve both chalcopyrite and digenite. Recent studies (Brett, 1962a)have shown that...Cu-Fe-S. This field extends from chalcocite and digenite to a at 700' C. (Fig- 2, after Yund and point...about 2 per cent of fine grains of chalcocite(or digenite).At 200. C. they obtained chalcopyrite in addition...specimencontainingbornite with a Iittle chalcopyritefrom the Jinmu Mine, Japan, a skarn deposit,exsolved additional chalcopyritewhen...Morimoto el al. (1960)heatedbornite from the Carn Brea Mine, Cornwall, a hypothermal deposit, at 175" C. in |
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