 | | Journal (article/letter/editorial) | | Disseminatedand Pipe-Style Mineralization at the ZaaiplaatsTin Mine P. J. POLLARD, Departmentof Geology, JamesCookUniversity...Minorsubvertical veinscontainingfluorite,calcite,quartz,andsulfidescrosscutthe granitesandpipes. Threemajortypesof...granite quartz,(2) cavity-fillingquartz,fluorite,andscheelite,and(3) cassiteritefrom the Iota pipe. Theseinclusions...Liquid-vaporinclusions occurin (1) late quartzfromcavities,(2) quartz,fluorite,and calcitefrom cavitiesin the marginalpegmatite...marginalpegmatite,and (3) late quartzandcalciteinfill from the Iota pipe. Theseinclusions homogenizeto the liquidphasebetween88ø |  | | Journal (article/letter/editorial) | | © Springer-Verlag 1989 Textural evidence for quartz and feldspar dissolution as a mechanism of formation...formation for Maggs Pipe, Zaaiplaats tin mine, South Africa P.J. Pollard, R.G. Taylor and N.M. Tate Department...Lease and Bobbejaankop Granite at the Zaaiplaats mine are host to major tin mineralization. Detailed textural...process initiates with the dissolution of granite quartz and subsequently extends to feldspar dissolution...outer margin to the central core, includes calcite-quartz, chlorite (±cassiterite, albite, fluorite) and |  | | Journal (article/letter/editorial) | | 10.1007/s00126-007-0124-8 ARTICLE High-purity quartz mineralisation in kyanite quartzites, Norway Axel...Nasafjellet as potential deposits of high-purity quartz (HPQ) for use as raw material for special applications...applications in high-technology industries. Fine-grained quartz, which forms 70 to 85 vol.% of these rocks, generally...being mined and produced in Norway and elsewhere. Quartz analyses were performed using laser ablation– inductively...whole-rock analyses and cathodoluminescence studies of quartz were carried out to reveal processes, which have |  | | Journal (issue) | | imported to handle the technical jobs for which local labor is unavailable. It's the Government's position...position that granting such high wages to local copper workers would create havoc in the remainder of the...company's Ewarton, J amaica, alumina plant. The rest will be spent to build the fabricating plant near...briefs_ _ _ _ _ _ _ _ __ _ A new Zambian copper mine will be opened by RST at Kalengwa, in the Northwest...a 600.000 ton deposit of copper running 16~. The mine will cost about $4.2-million. The small, but high-grade |  | | Journal (issue) | | 75'1 Cerro - 25", Chilean government Rio Blanco mine. The Sumitomo-headed group may help finance the... . Bollvla .. . ... .. . . ..... .. . o. of s. Africa . . . . .. . .. . 111,u,111uurmmi••m..••muuuM111ummmm11t1t1p...in the near future. A new company will mine tin in New South Wales. The Aberfoyle Tin Development Partnership...Alluvials to operate leases in the southern part of New South Wales. Members o! the Aberfoyle group are Aberfoyle...Bellviksbergs lead-silver mine to 80,000 tpy; 2) increase output at the Raevlidengruv zinc mine to 50,000 tpy; 3) |  | | Journal (issue) | | time most producers get through tacking on their 'local extras' the so- called producer price is more like...Bridgeport Brass' aluminum facilities. A U.S. district court judge dissolved Justice's 10-day restraining...constructing a $400,000, 350-tpd concentrator at the mine site. American and Southern Corp. is planning to...processing copper from the neighboring El Salvador mine. Output will be 3000 tpm when all units of the refinery...Bolivia . . . . . . . . . . . . . . • . . . U. of s. Africa . .. .. . .. .. Oth.er . . . . . . . . . . . • |  | | Book | | com/series/10172 Jens Götze Robert Möckel • Editors Quartz: Deposits, Mineralogy and Analytics 123 Editors...and reflect the state of the art in the field of quartz and silica raw materials. The book covers the broad...The chapters are dealing mainly with the mineral quartz, which is one of the most frequent minerals of...with the processing and technical application of quartz and SiO2 material. The 15 chapters of the book...exploration and qualification of potential deposits of quartz raw materials in terms of certain technical applications |  | | Journal (issue) | | going to be enough. If the new level holds for the rest of the year, defense rated orders will be equivalent...Copper output at Phelps Dodge's Morenci, Ariz. , mine will rise 15,000 tpy through installation of new...is due to good freight deals, not reduced f.o.b. mine values. The Russians are also offering at about...99'1o+ ; less than 100 lb lots ..... $1.72 100 lb Iota .. . ........ . .... .. ....... $1.67 SOO lb lots...Chlca&o) . . .. .. $1.15 Powder: 99%+; 300 mesh, 100 lb Iota . . $2.01 extra ftne, 5-50 kilo lots .. . . . . |  | | Journal (issue) | | " Much will come from Tennant's Emusa, Bolivia, mine which went on strike last week. Tin Prices Still...dgewater Beach Hotel The Otjisondu manganese mine in South West Africaclosed since 1961 on declining manganese...per ton. Union demands at Anaconda's El Salvador mine m Chtle have again been presented to Andes Copper...close to $150-million will be spent on an open pit mine, crushing and screening facilities and a 260-mile...dest. N.I!. lJ.S. Low carbon. lb TI cont., ton Ii Iota, lump (\i In. ) packed, 38...a% TI, max. 0.10% C |  | | Journal (article/letter/editorial) | | 50, No. 11, pp. 1016–1031. Minor Elements in Quartz from Hydrothermal–Metamorphic Veins in the Nether...2010; in final form, August 2, 2011 Abstract—Vein quartz from the Nether Polar Ural Province was examined...Ti, Ca, Na, K, and other minor elements in the quartz varies from 8 to 47 ppm. The lowest concentrations...detected in the gran ulated quartz. Giantcrystalline milkwhite quartz is noted for higher concentrations...contains gas–liquid inclusions. The finegrained quartz contains very small mineral inclusions and is thus |  | | Journal (issue) | | calls for governmentindustry partnerships to push mine output to 1.2-million tpy by 1970 and electrolytic...Kennecott's holdings, and 25% of Cerro's new Rio Blanco mine and Anaconda's Exotica ore body. Elsewhere, the...formation of two new companies. One will expand mine and ferronickel production at Le Nickel's New Caledonia...spend over $10-million developing the Empress nickel mine near Gatooma in Rhodesia. The subsidiary of Rio...reduction facility on the Konkoure River, reports from Africa state. Russia supposedly would supply the financial |  | | Journal (issue) | | spurred output increases at Consolidated Murchison's South African operation. Ore production jumped 15% in...fine tr oz. African Metars Corp.'s dolomite mine in South Africa will benefit from a $1.4-million expansion...zinc-lead mine in Idaho will be opened by Spokane National Mines. Shaft sinking at the Liberal King mine at...range on 45)~ ore had narrowed to 7274<'. Both South Africa and Gabon are reportedly almost sold out through...as a blending agent ,vith other ores Gabonese, South African, etc. Russia remains the x- factor in the |  | | Journal (article/letter/editorial) | | Mergui Group (mostly Carboniferous). The mineralized quartz veins at the Pennaichaung penetrated the grani...slates and quartzites of Margui Group. Mineralized quartz veins in the Pennaichaung area trend NNE-SSW, NW-SE...NE-SW with a maximum thickness of 30 cm, but only quartz veins trending NNE-SSW are found to be productive...wolframite and cassiterite. Majority of the mineralized quartz veins in the Yetkanzintaung area trend approximately...average width of 5 cm. Fluid inclusion studies of the quartz from the ore veins cutting the granitoid in the |  | | Journal (article/letter/editorial) | | PervasivelyAltered BushveldGranitesat the ZaaiplaatsTin Mine P. J. POLLARD,R. G. TAYLOR, Departmentof Geologyand...SouthAfrica. Sinceoperationscommencedin 1906 the mine has producedin excessof 17,000 metric tonsof tin...alteredgranite(PollardandTaylor, Granite, with local namesbeing applied to distinct 1986). Theselatter...Regionalgeologicsettingof the Zaaiplaatsmine. ZAAIPLAATS Sn MINE: ALTERED GRANITES nized as varieties of the Nebo...bejaankopGranites(Coetzee, 1984, 1986), and on In theZaaiplaats district(Fig.2) theBobbejaankopgeochemicalhalossurroundingpipe |  | | Journal (article/letter/editorial) | | Academy of Sciences, 142432 Chernogolovka, Moscow District, Russia Received 9 August 2000; accepted 4 June...pressure transducer at room temperature and the quartz – coesite equilibrium curve at high temperatures...placed in the hot spot of the sample, while the rest of the sample consisted of a carbonate-bearing mix...from several localities worldwide, including South Africa (Moore and Gurney, 1985; Moore et al., 1991)...inclusions (small symbols) in diamonds from South Africa (Moore and Gurney, 1985; Moore et al., 1991) |  | | Catalog/List | | good stuff that used to come out of the Marencl mine, ~ut the price is a whole lot better. specimens...00 eaoh. CLEANED COPPER AND MALACHITE: Southwest Mine, Bisbee, Arizona: I've had these for a few years...&Kploration. $5.00 IRIDESCENT GOETHITE COVERING QUARTZ: Grandfather Mountain, Georgia: Choice specimens...juat collected this spring immediately before the mine was closed for refilling and reolalmlng. There will...morel These are terrific, large, mostly terminated quartz crystal, almost totally covered with a rainbow |  | | Journal (issue) | | then since the government has the option for the rest of 1966 to buy back at 36r any material it released...deal calls for 20,000 mt- 12,000 tons of Okeep (South African) and 8,000 tons of Kilmbe (Uganda) copper-...Granby $7 .5-rriillion to develop the Granisle copper mine. and they expect to begin taking ore deliveries...its &terhazy, Sask., mine within a year. The firm - which has operated the mine since 1963- recently...production by 50% within a year, thereby increasing mine and mill output from 2,000 to 3.000 tpd. The Philippine |  | | Journal (issue) | | '""""'"'"'""'JlttltllJUIAI * ELECTROLYTIC ( a) carload Iota; (b ) delivered; ( c) lump bulk; (d) f .o.b. sblppine.... 18.5, FERROCOLUMBIUM: lb Cb cont., ( b ), ton Iota 15/ 1 ................ ( n ) '2,80-3.00 FERROMANGANFSE:...similar resins reinforced with beryilium, boron or quartz fibers. There's little doubt in designers minds.... . . . . . . . . . . . . . . . . 281 U. of s. Africa . . . . . . . . . . ftlled O the.r . . . . . ....producers- primarily Anglo-American Corp. of South Africa which supplies 46% of Japan's copperMITI has |  | Xia, Mei, Sun, Chao, Yang, Xiaoyong, Chen, Jian (2023) Assessment of Gold-Bearing Quartz Vein as a Potential High-Purity Quartz Resource: Evidence from Mineralogy, Geochemistry, and Technological Purification. Minerals, 13 (2) 261 doi:10.3390/min13020261 | Journal (article/letter/editorial) | | Assessment of Gold-Bearing Quartz Vein as a Potential High-Purity Quartz Resource: Evidence from Mineralogy...Assessment of Gold-Bearing Quartz Vein as a Potential High-Purity Quartz Resource: Evidence from Mineralogy...); jchen@ipp.ac.cn (J.C.) Abstract: High-purity quartz (HPQ) is an important material widely used in many...processed from pure natural quartz raw materials, so selecting suitable quartz raw material is the key to...to successfully processing HPQ. Hydrothermal quartz vein is one of the most likely raw materials to be |  | | Book (edition) | | subject of controversy. Some felt that meteors were a local event, like lightning. Others felt that meteors...several factors, not the least of which are your local conditions. Bright streetlights and other artificial...to a distant FM station, one that lies over your local horizon (approximately forty to fifty miles away)...April 16 to April 25, beginning about 11:00 p.m. local time, looking overhead. As night progresses toward...above the horizon, lying with your feet to the south, west, or north (it is not a good idea to look directly |  | | Book (edition) | | subject of controversy. Some felt that meteors were a local event, like lightning. Others felt that meteors...by several factors, not least of which are your local conditions. Bright streetlights and other artificial...meteors the observer can see. Unless the moon—or poor local weather—interferes, you can count on fifty to one...ionized trail. iustraTion BY CHAD THOMPSON your local horizon (approximately forty to fifty miles away)...April 16 to April 25, beginning about 11:00 p.m. local time, looking overhead. As night progresses toward |  | | Journal (article/letter/editorial) | | Erosion and local sedimentation FiG. l. Map of western Kenya showing fluorspar district and major faults...[-•-1 Guartzofnidnpathb gneiss i•--'•Contoursof IOta. vertical Interval Streams Hornblende gneiss Fault...64 percentby volume). A rock composed mainly of quartz and microcline is found at the contactof fluorite...appears to have formed by hydrothermalalterationof quartz-feldspar-richrock. Kaolinite locally found in these...northapproximatelyeast-west. Five separatebodiesfrom south direction. Three of them are associated with individual |  | Andreoli, M. A. G., Smith, C. B., Watkeys, M., Moore, J. M., Ashwal, L. D., Hart, R. J. (1994) The geology of the Steenkampskraal monazite deposit, South Africa; implications for REE-Th-Cu mineralization in charnockite-granulite terranes. Economic Geology, 89 (5) 994-1016 doi:10.2113/gsecongeo.89.5.994 | Journal (article/letter/editorial) | | charnockiteveinsand that monazitemay be a minor constituentof the quartz diorite. Electronmicroprobeanalysesof monazitefrom...north of Cape Town (Fig. 1). The Steenkampskraal mine first operatedfrom 1952 to 1963 whenit represented...(Pike, 1959; R. Corrans, pers. commun.). Sincethe mine hasnow been closedfor 30 years, access to some of...observations conducted in the course of from the mine wasestimatedat 50,000 metric tonsof two undergroundvisits...concentrateaveraging45 wt percent REE The Steenkampskraal mine exploitedthe largest oxides,4 wt percentThO2, 18 |  | | Journal (article/letter/editorial) | | Precambrian organic compounds from the Ketilidian of South-West Greenland. Part IV. 1972 by Jørgen Lam and...north-east of the fjord Qagssit, Frederikshåb District, South·West Greenland. 1972 by Giorgio Rivalenti...of snow patch variation in the Frederikshåb District, South-West Greenland, and its implications for studies...is thus not necessary lo subdivide the formation iota members. A detailed invcslignlion af lhis formation...Name From Kap Stewart, south-east Jameson Land. Type Iocality Kap Stewart, south-eastern Jameson Land. |  | | Journal (issue) | | lb for $1.1225, while Associated Metals got the rest with bids of $1.1511 and $1.1097. Zinc release...four new zinc mines now under construction. More mine developments are anticipated, though no final plans...labor settlement at Chile's Chuquicamata copper mine was based on wage hikes close to the government's...been made at Yugoslavia's Suplja Stijena mine at Plevlje. The mine was opened in 1953 but declared "exhausted"...new sulphuric acid plant; $4.5-million for a new mine and flotation plant at Badovac, $11-million on reconstruction |
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