 | 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 ZnāCuāPbāAg 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...and covellite accommodate 80% of silver in the Um Samiuki deposit. Ag was incorporated in the crystal structure...D. Lentz I. M. Shalaby Geological Survey of Egypt, Egypt E. Stumpļ¬ Institute of Mineralogy and Petrology |  | | Journal (article/letter/editorial) | | since the second half of the 19th century at the western margin of the Magnitogorsk paleovolcanic belt in...Bugulygyr Horizon. Upsection, they give way to the deep red jasper replaced in vertical and lateral directions...jasperites and, in turn, is overlain by the deep red jasper. The orebody is confined to gray cherty siltstones...siltstones in the southern area where the red silicites rapidly pinch out. The second (northern) area...deposit 2 ā” b 5 ā” b 6 7 3 4 D1em Ć„(D2) d 8 UM(O-S) Fig. 2. Position of the South Faizuly and Kyzyltash |  | | Journal (article/letter/editorial) | | Mn-silicates from the Smith prospect and MangaChrome mine, Sierra Nevada, California were deposited as ocean...Manga-Chrome mine also contains layers rich in manganoan calcite and caryopilite. Tephroite, rhodonite...MangaChrome as metavolcanic clasts and as Mn-poor, red, garnet- and hematite-rich layers. There is no evidence...samples from the Smith prospect and Manga-Chrome mine have high Mn/Fe and low concentrations of Ni, Cu...sediments and crusts that are forming near modern sea floor vents. The Sierra Nevada deposits formed as |  | | Book | | district of Faynan, Jordan, and its surroundings. Red dots in the image show mining and smelting sites...metallurgical remains in Timna (Israel) and Sinai (Egypt), at a time when the political conditions made it...of this mining region in the Southern Levant and Egypt. The incorporation of objects from Israel was most...important source of the ore mineralizations in the western area are in Timna, roughly 30 km north of modern...Wadi Arabah is Faynan, ca. 80 km south of the Dead Sea. Further south, in the Wadi Abu Khusheibah and in |  | | Journal (article/letter/editorial) | | deposits Shikoku Accretionary complex Metamorphism Deep-sea MnāFe nodules a b s t r a c t Numerous bedded manganese...along Benioff plane of the subducting Philippine Sea Plate (PHS), as well as the formation of accretionary...Kunimiyama-Akatsuki (No. 38) mines, the radiolarian ages of red chert embedding the manganese deposits were determined...the mines (Nos. 5ā9) such as Sanpo within the western Ehime area, various manganese silicateācarbonate...silicateācarbonate ores (Type B) consisting of rhodonite, tephroite, braunite, Mn-bearing garnet, manganogrunerite and |  | | Journal (article/letter/editorial) | | unusual manganese silicate occurrence at the Hoskins mine, Grenfell district, New South Wales P. M. Ashley...unusual manganese silicate occurrence at the Hoskins mine, Grenfell district, New South Wales, Australian...unusual manganese silicate occurrence at the Hoskins mine, Grenfell district, New South Wales P. M. Ashley...Silurian Hoskins Formation at the Hoskins manganese mine near Grenfell, NSW. Two dominant mineral assemblages...jasper, containing abundant rhodonite and/or tephroite, plus subordinate carbonates, quartz, hausmannite |  | | Journal (issue) | | itself with the recent closure of the world famous mine of the New Jersey Zinc Company at Franklin, N. J...equalled anywhere. Well do we remember the magnificent red colored zincite, the huge black colored crystals...the common gangue in the mines, presented a fire-red fluorescence. Only Langban had limited amounts of...gave us large, magnificent masses, showing fire-red, brilliant green, and vivid canary-yellow, all in...as many as 15 distinct shades of red, ranging from a delicate pink-red to a vivid cerise. The green fluorescing |  | | Report (Issue volume) | | ALLEGHANYITE Amador County: Alleghanyite occurs with tephroite and other manganese minerals at the Germolis prospect...1, Thin tabular crystals of andorite Thompson mine, Darwin (1) p. 17. district, are in the rich silver...Mines CDMG (21752) in the from the Buchanan is mine near Knowles. APHTHITALITE Inyo County: 1, Aphthitalite...Alpine mine, occurs as fibrous aggregates on serpentine from the vicinity of the Florence Mack mine, E....BETA-URANOTIL Sm reported with uranoBristol Method mine (Hope uranmm prospect) Bernardino CounMj: phane |  | | Journal (article/letter/editorial) | | willemite, franklinite, and zincite. Franklinite, tephroite, pyroxene, and biotite compose the leanly mineralized...sequence, with tephroite, zincite, and franklinite following in undetermined order; tephroite and zincite...observed only in the presence of tephroite. There is evidence that tephroite has replaced willemite. Manganese...possibly replaced the zinc in willemite to form tephroite and may have resulted in the formation of zincite...differences in <10 micron franklinite inclusions. Red franklinite is nonmagnetic with a unit cell dimension |  | | Journal (article/letter/editorial) | | (primary). (b) Braunite - hausmannite spessartine tephroite quartz (metamorphic). (c) Hydrated manganese silicates...petrological characteristics of island are volcanics, sea floor basalts, cherts and shallow water limestones...apparently conformable (stratiform), within layered red jasper and white chert. The oxide shows evidence...to 10 m in thickness, occurs conformably within red jasper and white chert. Above the main manganese...their radiolarian cherts and lavas represent ancient sea-floor rocks adjacent to a subduction related, volcanic |  | | Journal (issue) | | smoky quartz, citrine, amethyst, Š°Šæd otl1ers), red and Š«uŠµ corundum, nep\1rite, jadeite, turqŠ½oise,...small corundum crystals. Large crystals of purple-red corundum are concentrated in th_e inner ŃŠ¾Š³Šµ, where...value consideraŠ¬!y . The color ofthe rŠ½Š¬Ń is purple-red, rather deep, Š°Šæd caŠ½sed Š¬Ń the presence of chrome... Ye,rzorire(omamenta/srone), rack(basalr)1vir/1 red spors of ca,Ā·bonares. Š£ŠµŃŠ¾Š³- Š£Š°k/Ń River, Subpo/a...interest to gemologists due to their very deep purple-red color, its even distribt1tion, and their asterism |  | | Journal (issue) | | 3 Oinochrysotile Pseudomorphs from the Sterling Mine. Ogdensburg. New Jersey by Carl A. Francis A Note...Wawayandaite 16 Research Reports: Forsterite-Tephroite Series 17 Glaucochroite 18 The Lettish Symposium...first discovered on a specimen from the Franklin Mine. An abstract of the description appears elsewhere...unique list. It was reported from the El Dragbn mine, Potosi, Bolivia, by Grundmann et al (1990) in Mineralogical... as part of a larger study of the forsterite-tephroite solid-solution series (Francis, 1985), caramel-colored |  | | Journal (article/letter/editorial) | | consist of Mn-silicates and carbonates (such as tephroite, rhodonite, caryopilite, and rhodochrosite), andradite...Most of the manganese deposits are located in the western part of the Magnitogorsk palaeovolcanic belt stretching...andesite-basaltic complexes, is developed in 43 its western and eastern slopes and is reconstructed as fragments... and (7) Lis'Iiy Gory. The foundation: M ā maļ¬c, UM ā ultramaļ¬c. bedding of rocks dipping to the west...the eastern part to a few tens of metres in the western part. An ophiolite association is developed to |  | | Book | | major constituenls together with willemite and tephroite. It is also shown by the numerous less-common...owned the famous Succasunna (or Dickerson) magnelite mine from 1807 to 1852. The Canfield collection was general...from the district. The Franklin Museum, located on Mine Hill beside the Buckwheat open cut, was founded...place in the mines, such as a level and stope in the mine coordinate system. There also has been confusion...material set aside for purchase also could be found in mine offices or at 8 Introduction the shaft heads; |  | | Journal (article/letter/editorial) | | sediments(ancient continentaldepositsand recent deep sea nodules) and their metamorphosed equivalents. The...blage of spessartite-rhodonite-rhodochrosite-tephroite and other manganese pyroxenesand amphiboles. The...as chemical(or very rarely clasticas sugof deep-sea nodules,manganese sediments in modern gested by Pouit...sedimentary type. The typewill alsoincludethe recentdeep-sea Park (1956) classifiedmanganeseorebodieson a sedimentary...OH)is('DONNAY ETAL,196S) RHOOONITE -- MnO. SiO 2 TEPHROITE -- 2 MnO. SiO2 CARBONATE RHODOCHROSITE -- |  | | Journal (article/letter/editorial) | | The South Faizuly deposit is localized at the western flank of the Magnitogorsk paleovolcanic belt (Fig...rhyolites (Karamalytash Formation) on the limbs. The western limb is bounded by a thrust fault that steeply...mudstone; (2ā6) Bugulygyr Horizon (D2ef2): (2) brown red jasper; (3) gray cherty siltstone; (4, 5) manganese...2ā4 m thick, lenticular bodies of jasperite (dark red hematiteāquartz rocks) that are currently considered...Zaikova, 2003). Upsection, they give way to the brown red thinbanded jasper that makes up the main body of |  | | Journal (article/letter/editorial) | | ores of the Camp Bird and nearby areas in the western San Juan indicated similar conditions of formation...study of the manganeseminerals of the Sunnyside mine at Eureka may give further information on this problem...Goddard and the writer visited Eureka, but as the mine was not operating at the time of the visit it became...mill at Eureka. These Frc. 1. Alleghanyite (a), tephroite (locally with alleghanyite), and friedelite (f)...Sysrpru The principal workings of the Sunnyside mine are located about 7 miles north-northeast of Silverton |  | | Journal (article/letter/editorial) | | the mineraldeposits.The memoirby Palache(1935) western of the New Jersey Highlands. The gives a bibliographyof...late Paleozoicand .bythe from about 1930 to the mine closing. They relate intrusionof basicigneousdikes.../ ! ! ! Franklin Marble 'N Gneiss Sterling Mine 1 Mile I I Scale FIG.1. Sketch mapof theFranklin-Sterling...about25Ćø (Fig. 2). Toward the northern end of the mine the plungeof the keel fiattensand then reversesslightly...text in part modify the conventionsemployedorā¢ the mine maps. easternlimb was itself a tight isoclinalfold |  | | Journal (issue) | | Buckwheat Dump and at the Taylor House, a replica of a mine section and pumping station. Hours are 9 to 9 on..."Rehiring of a maintenance crew at the Sterling zinc mine at Ogdensburg, closed since 1957, has undoubtedly...subsidize prices for small producers owns the Sterling mine, is described therefore, not likely to be affected...token political gesture toward congressmen from Western producing states where many of the marginal mines... New Jersey Zinc Company (Cont.) The Ogdensburg mine was closed in August 1958. It was the first voluntary |  | | Journal (article/letter/editorial) | | THE SUNNYSIDE MINE EUREKA MINING DISTRICT SAN JUAN COUNTY, COLORADO TOM ROSEMEYER Box 586 Ouray, Colorado...Colorado 81427 The Sunnyside mine is Colorado's largest underground gold producer and to date has produced...mountain valley at an elevation of 12,240 feet, the mine was originally located on the shores of the now-drained...height of mining activity, the sprawling Sunnyside mine complex was a self-contained community with offices...boardinghouses, a hospital, and a commissary. Winters at the mine were long and harsh, often with snow depths of 10 |  | | Journal (article/letter/editorial) | | Minerals of the Hutter Mine A New Manganese-Barium Mineral Locality in Northern Pittsylvania County,...with recontouring old mine dumps at the nineteenth-century HutĀ ter iron mine in Pittsylvania County...ganese olivines and humites (manganoan fayalite, tephroite, sonolite, manganhumite, and alleghanyite), manganese...the Pittsville area, the Hutter mine (also known as the Heiter mine) ceased production in 1903 (Watson... and Energy began a project to seal mine shafts and reclaim mine dumps on the Hutter property. Recontouring |  | | Journal (article/letter/editorial) | | chondrodite. humite and clinohumite) as well as tephroite, the manganese olivine. Although P-T-X relations...parallel intergrowths of tephroite and alleghanyitefrom the Benallt manganese mine in Wales without obse...(1980) for humite. White and Hyde (1982) observe tephroite-alleghanyiteintergrowths from Hokkeyino, Kyoto...matrix. (crossedpolars, sample635).Figure lC, tephroite(Tep) grainsin a tirodite (Tir)-rhodonite(Rh) gneiss...originally reported by Ross and Kerr (1932), tephroite is not a common mineral at Bald Knob. It is difficult |  | Santos, Felipe Holanda dos, Amaral, Wagner da Silva, Konhauser, Kurt, Martins, Douglas Teixeira, Castro, Marco Paulo de, Queiroga, Glaucia Nascimento, Chi Fru, Ernest, Andersen, Morten B. (2021) Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil. Ore Geology Reviews, 137. 104283pp. doi:10.1016/j.oregeorev.2021.104283 | Journal (article/letter/editorial) | | spessartine. The silicate manganese ore has rhodonite, tephroite and spessartine. Garnetite contains spessartine... The presence of spessartine, rhodonite, and tephroite suggests peak metamorphic conditions reached amphibolite...operational mining activities in the Lagoa do Riacho mine are relatively recent and date from 2011. Its activities...rhodonite-pyroxmangite (Mn , Fe2+,Mg,Ca,SiO4), and tephroite (Mn2+2SiO4), along with non-Mn gangue minerals...The manganese-rich rocks from the Lagoa do Riacho mine show three distinct lithological groups, all containing |  | | Journal (article/letter/editorial) | | deposit has analogues in the recent ore muds of the Red Sea. Therefore, a hydrothermal sedimentary origin related...1343: From the dump of an exploration shaft in the western centre of the sphalerite-jacobsite mineralization...sphalerite-jacobsite mineralization. 421/2, 476/10a: From the western end of the skarn body. 436/16, 436/6: From the...are frequently associated with Mn2+jacobsites: tephroite (Mn2 -SiO4) at Stallmalm (Sweden), knebelite ([Mn...([Mn,Fe]2SiO4) at Tuna-HƤstberg (Sweden), tephroite and spessartine (Mn3Al2[SiO4]3) at Goriajhar (India) |  | | Journal (article/letter/editorial) | | Accepted: 31. 01. 2003 Abstract The Noda-Tamagawa mine, one of the biggest bedded manganese deposits in...pyrochroite-hausmannite passing by the intermediate tephroite ore. This zonal distribution of the manganese...results display a pattern similar to that of Black Sea sediments. A series of sulfur isotopic data obtained...that the sulfides in the rocks of the Noda-Tamagawa mine were formed during diagenesis by the intervention...words: Noda-Tamagawa mine, metamorphism of sedimentary manganese deposit, anoxic sea, sulfur and carbon |
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