 | | Journal (article/letter/editorial) | | Atmospheric Sciences, Iowa State University, Ames, Iowa, USA Received October 23, 2005; revised version accepted...Creek deposit, Colorado (Jensen and Barton, 2000), Boulder County deposits, Colorado (Lindgren, 1907;...mesothermal gold deposits, one exception being the Boulder Reef deposit, Golden Mile, Western Australia (Simpson...altaite (PbTe), and petzite (Ag3AuTe2), st€ coloradoite (HgTe)]. Altaite is the most common telluride...Volcanics, and the basaltic dikes in the Tuvatu mine area contain 280–387 ppm V (mean ¼ 317 ppm V), 292–355 |  | | Journal (article/letter/editorial) | | and Geological Engineering, Queen’s University, Kingston, Ontario K7L 3N6, Canada PETER THEYER§ Manitoba...millerite and cobaltite–gersdorffite. Magnetite, coloradoite, and Au–Ag alloy occur locally. The platinum-group...sphalerite, galena, cobaltite–gersdorffite, coloradoite, magnetite and Au–Ag alloy (Figs. 3A–F, 4A–H)...detection limit on the electron microprobe used. Coloradoite (HgTe) is rare and forms composite grains with...with merenskyite, sperrylite, temagamite and coloradoite. It contains minor amounts of Ni, Fe and Bi. |  | | Journal (issue) | | Museum (Historical Geology) Richard M. Pearl, Colorado College (Mineralogy) Kenneth Ross, Field Director...Director, Explore’s Camp, Mesa Verde, Colorado (Archeology) Arnold Goodman, Boston University (Microscopical...DIGEST Vol. Il JUNE - 1948 No. 9 Contents Colorado Mineral Localities. . The American Federation...the 13th to the 16th of this month at Denver, Colorado. For the first time, earth scientists, both amateur...HAMPSHIRE THE COLORADO EARTH SCIENCE MINERAL RICHARD Colorado Climax Molybdenum Mine. Bartlett |  | | Report (issue) | | • . • • . • . . • . . . . • . Baldwin (Kelmac) Mine . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . Swastika (Crescent) Mine . . . . . . . . . . . . . . . • . . . • • . . ....(Golden Gate) Mine . . . . . . . • • . . . • . • . . . . • . . . . . • . . . • . . . . Adams Mine . . . . ... . . . . . • . . . . Barry-Hollinger (Patricia) Mine . . . . • . . . • . • • . . . . . . . . . . . ....(Yama) Mine . . . . . . . . . • . • . • . • . . • . . . . . . • . . . • • . • . • . . Macassa Mine . . |  | | Journal (article/letter/editorial) | | for Isotope Research at Queen’s University in Kingston, Canada. Hydrogen isotopes were measured from...gold deposit (including the Beattie mine and the Donchester mine; Fig. 1B) has a past production record...stage Abbreviations: Apy = arsenopyrite, Cl = coloradoite, Cp = chalcopyrite, El = electrum, En = enargite...pyrite, enargite, tennantite-tetrahedrite, and coloradoite. These narrow veins comprise the highest gold...Chalcopyrite Enargite Tennantite-Tetrahedrite Coloradoite Hessite Electrum Barite Goethite Mineralization |  | | Journal (article/letter/editorial) | | satellite intrusion of the Bushveld Complex. The Nkomati Mine, a joint venture between Anglovaal Mining Limited...(PGEs), are produced at the mine and are toll treated elsewhere. Although the mine is currently regarded as...(1998). The geology in the vicinity of the Nkomati Mine is illustrated in an idealised cross-section of...phases such as hessite (Ag2Te), altaite (PbTe), coloradoite (HgTe) and tellurobismuthite (Bi2Te3), are also...Centre Drive (mapped by Mr. M. Segwapa, Nkomati Mine) at the locality of the channel samples of the Upper |  | | Report (issue) | | a short article on California diamonds. Amador County: A few small stones have been picked up near the...the towns of Volcano, Oleta and Fiddletown. Butte County: In 1853 it was observed that diamonds occurred..."Wliite Rock canyon and at Smith's Flat. Fresno County Small diamonds are reported to have been found...found a few miles north of Coalinga. Nevada County A 1-^ carat stone was found at French Corral. Siskiyou...El Dorado County Forest Hill. About : sixty have been : : : Bar. Trinit}^ County : INIicroscopic |  | | Journal (article/letter/editorial) | | (modified from Emperor Gold Mining Company, 2000). Kingston prospect, 1.8 km north of the Tuvatu deposit (Colley...(a) and native gold (G) in the URW3 lode. J. Coloradoite (co) with native gold and coexisting with calaverite... stützite (Fig. 5H), altaite (Fig. 5I), and coloradoite (Fig. 5J). The most common precious metal tellurides...gold, calaverite-coloradoite, calaverite-coloradoite-native gold, calaverite-coloradoite-native gold-altaite...hessite-petzite, altaitenative gold, altaite-hessite, and coloradoite-native gold. Abbreviations: Cal = calaverite |  | | Report (issue) | | PEACOCK ATLAS By LE, G BERRY Queen’s University Kingston, Ontario, Canada and R. M. THOMPSON The University...Riksmuseem, Stockholm (NRS); Queen’s University, Kingston (QU); R. M. Thompson and the University of British...’-’m3m; a = 4.080; Z = 4 2496Q (Cu/Ni)—East Gold mine, Bowser River district, Portland Canal area, B.C...silver Cell Studies, the same (a) 0, 0, S Z = mine, Coantimony). edge by Peacock (Univ. Toronto Geol...(Cu/Ni)—Calumet mine, Michigan; same pattern given by copper filings and material from Tamarak mine, Michigan |  | | Journal (article/letter/editorial) | | CORNWALLITE L. G. BERRY Queents University, Kingston, Ontario X-ray and optical studies on numerous...radiating structure. Crystals from Centennial Eureka Mine, Tintic, Utah, are elongated ll c. The unit cell...and twenty miles west of Green River, Sweetwater County, Wyoming. Loughlinite occurs in veins in low-grade...occurrence is recorded for brazilianite, at the Palermo mine, near North Groton, Grafton Co,, New Hampshire....Department of Mineralogy, Queen's University, Kingston, Ontario In a partial study of the NiAs-NiSb system |  | | Journal (article/letter/editorial) | | Reef at Rustenburg platinum mine in the western Bushveld By G. A. KINGSTON D e p a r t m e n t of Mining...have been identified in the ore from Rustenburg mine on the Merensky Reefl The composition of each phase...Similar phases have been located in the ore from Union mine. Two of these phases are shown to be moncheite and...s t e n b u r g mine, a b o u t 50 miles west of Pretoria, and also at U n i o n mine, 55 miles n o r...the northern outcrop of the Merensky Reef at Union mine these units are still present although considerably |  | | Report (volume) | | the Great Eastern prospect, Bunkerville, Clark County, Nev.:: U: S. Bur. Mines Inf. Circ. 7029, 8 p....deposits (with discussion by Thomas Charlton) : Colorado Sci. Soc. Proc., v. 4, p. 395-421. (Separate ed...Austin, W. L., 1895, Nickel; historical sketch: Colorado Sci. Soc. Proc., v. 4, p. 373-394. (Separate ed...1898, The nickel deposits near Riddle's, Oreg. : Colorado Sci. Soc. Proc., v. 5, p. 173-196. (Separate ed...E. S., 1908a, A pyrrhotite.peridotite from Knox County, Maine, a sulfide of igneous origin; Jour. Geo |  | Masurel, Quentin, Thébaud, Nicolas, Miller, John, Ulrich, Stanislav, Roberts, Malcolm Peter, Béziat, Didier (2017) The Alamoutala Carbonate-Hosted Gold Deposit, Kédougou-Kénieba Inlier, West Africa. Economic Geology, 112 (1) 49-72 doi:10.2113/econgeo.112.1.49 | Journal (article/letter/editorial) | | Corporation, and the government of Mali, until the mine was decommissioned in 2012. The total production...production of the Alamoutala gold deposit over its mine life was 308,400 oz Au at an average grade of 1.70 g/t...on all accessible ramps of the abandoned open-pit mine at the Alamoutala deposit. Detailed logging was...pole). Traces of molybdenite, scheelite, and coloradoite (HgTe) are found as fine-grained subhedral inclusions...Chalcopyrite Arsenopyrite Scheelite Molybdenite Coloradoite Gold Electrum Berhierite Sphalerite Tetrahedrite-Tenn |  | Laufek, František, Vymazalová, Anna, Drábek, Milan, Dušek, Michal, Navrátil, Jiří, Černošková, Eva (2016) The crystal structure of Pd3 HgTe3, the synthetic analogue of temagamite. European Journal of Mineralogy, 28 (4) 825-834 doi:10.1127/ejm/2016/0028-2547 | Journal (article/letter/editorial) | | unknown phase from Rustenburg, South Africa, by Kingston (1966) and Vermaak & Hendriks (1976). Table 1...67 20.30 34.70 6.37 Salt Chuck Intrusion, Alaska, USA (4) 1 34.9 21.2 42.6 0.1 2 34.6 19.9 43.2 0.1 3 35...797 Å observed in the synthetic analogue of coloradoite, HgTe (Woolley & Ray, Table 7. Powder-diffraction...Sulfosalts. Mineral Data Publishing, Tuscon, Arizona, USA. Beaudoin, G., Laurent, R., Ohnestetter, D. (1990):...Diffraction Data, Newtown Square, Pennsylvania, USA. Kingston, G. A. (1966): The occurrence of platinoid bismuthotellurides |  | | Report (issue) | | observed in the gold gravels at Cherokee, Butte County, and this locality, became the most noted one in...short articles on California diamonds. A Amador County: few small stones have been picked up near the...towns of Volcano, Oleta and Fiddleto^vn. Butte County: In 1853 it was observed that diamonds occurred...Thompson Flat, two miles north of Oroville. El Dorado County: A diamond weighing 1| carats was found at Forest...in White Rock canyon and at Smith's Flat. Fresno County: Small diamonds are reported to have been found |  | | Report (volume) | | Cover illustration Beryl crystal in quartz, Lacorne mine. The crystal is 39 mm long and 18 mm wide. National...2359J Molybdenite crystal in quartz, Moly Hill mine. The crystal is 33 mm across. National Mineral Collection...Baldwin (Kelmac) mine Swastika (Crescent Kirkland) mine Lucky Cross (Golden Gate) mine Adams mine Boston molybdenite...Boston Creek gold mine Barry-Hollinger (Patricia) mine Boston-McRae mine Planet Gold mine Miller Independence...Independence mine Kennedy-Boston mine Cathroy Larder (Yama) mine Macassa mine Kirkland Lake gold mine Teck-Hughes |  | | Report (volume) | | ............................................. Colorado.................................................especially from those of Arkansas, California, Colorado, New Mexico, Oregon, South Dakota, Tennessee,...minerals and rocks, their occurrence and uses: Colorado State Geol. Survey Bull. 6, 1913. 8 USEFUL...California,- Berkeley. Colorado_____Prof. R. D. George, Boulder. Connecticut_ Prof. William N. Rice, Middletown...See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found |  | | Book | | .3 COLORADO. of COLORADO. J. S. l GEORGETOWN, COLO. GEORGETOWN COURIER PRINT. 1887. 3 Bancroft...From a mineralogical point of view the wealth of Colorado exceeds that of In the metallic minerals almost...to in the following pages Proceedings of the Colorado Scientific Society. Proceedings of the Academy...the U. S. Geological Survey. J. GEORGETOWN, COLORADO, January, 1887. S. RANDALL. : MINERALS...gravel of streams and in veins. The veins of Gilpin County are especially noteworthy for the amount of gold |  | | Report (issue) | | commercial borates. Lawsonite, first found in Marin county in 1895, has proved to be of great petrographic...nickel telluride, melonite, found in Calaveras County in 1867. New minerals and new mineral this is ...products. The gem-bearing pegmatites of San Diego County have aroused special masses, interest. Many ...short articles on California diamonds. A Amador County: few small stones have been picked up near the...recently, one of 21 carats near Plymouth. ; Butte County: In 1853 it was observed that diamonds occurred |  | | Report (issue) | | masses and crysta l s in vugs at the Highland Bell Mine , Wallace Mountain , n ear Beaverdell , 23 miles...3 Argentite has b een found at the Silver King Mine , Toad Mountain, about 5 miles south of Nelson (G...supergene mineral replacing galena at the Hewitt Mine, and as films associ ated w ith nativ e silver coating... polybasite and argyrodite , at the DollyVarden Mine, 18 miles from the head of Alice Arm, near the headwaters...L/I A rare constituent of the ore at the Eldorado Mine, Great Bear Lake, argcntite occurs as inclusions |  | | Report (volume) | | the districts of Nipissing, Ontario, and of the county of Pontiac, Quebec," by A. E. Barlow.] Jour, of...products. 21 Bain (Harry Foster). Geology of Carroll County [Iowa]. Iowa Geol. Surv., vol. ix, pp. 53-107...the district of Nipissing, Ontario, and of the county of Pontiac, Quebec. Can. Geol. Surv., new ser..... 49 Beyer (Samuel Walker). Geology of Story County [Iowa]. Iowa Geol. Surv., vol. ix, pp. 159-237...other economic products. 50 Buried loess in Story County [Iowa]. Iowa Acad. Sci., Proc., vol. vi, pp. 117-121 |  | | Journal (issue) | | in a Silurian lagoon about 400 m.y. ago; Welland County. (Courtesy Shell Canada Ltd.). right: left: —...showing cubic cleavage 30 - Gold ore, Chesterville Mine 31 - Dendritic native silver in dolomite 32 - Betafite...Falconbridge, Sudbury Basin 61 - Geco Mine, Manitouwadge 62 -Helen Mine, Wawa 63 - Open pit, Steep Rock Iron...Red Lake Gold Mines Limited 66-Pronto Mine in 1958 67 - Munro Mine in 1959 68 - Nepheline syenite quarries...quarries and mill 69 - Bedded rock salt, Ojibway Mine, Windsor 70 - Plant of Lake Ontario Cement Limited |  | | Report (issue) | | from “ Mount Lyndhurst,” “Leigh Creek,” “Avondale Mine”; all these are in the Leigh Creek District, and...Mount Shamrock Mine. Ihid., No. 168, 1901. 34. On the Mount Biggenden Gold and Bismuth Mine and Paradise...Mineral 9 42b. The.Einasleigli Freehold Copper Mine, North Queensland. GeoL Suru. Q’land, Publication...Junr.) The Walhalla 43. or Thomson River Copper Mine. Bull. Geol. Surv. Viet., 20, 1906. Bartley ...Centres. Ibid., 53, 1913. 63d. The King’s Sound Tin Mine. Ibid., 59, 1914, pp. 232-239. Bleasdale 64. 65 |  | | Journal (issue) | | paragenesis of the Little Three mine pegmatites, Ramona district, San Diego County, California ...............25046, M .S. 905 Denver Federal Center Denver, Colorado 80225 In recent decades the science of mineralogy...recently published by Consumer Reports (Box 53009, Boulder, CO 80321-3009; $18 per year) in their November... 905 Box 25046 Denver Federal Center, Denver, Colorado 80225 Louis B. Spaulding, Jr. P. O. Box 807, Ramona...plus an interesting range o f rare species. The mine, first opened in 1903, continues to produce fine |  | Ronacher, E., Richards, J. P., Reed, M. H., Bray, C. J., Spooner, E. T. C., Adams, P. D. (2004) Characteristics and Evolution of the Hydrothermal Fluid in the North Zone High-Grade Area, Porgera Gold Deposit, Papua New Guinea. Economic Geology, 99 (5) 843-867 doi:10.2113/gsecongeo.99.5.843 | Journal (article/letter/editorial) | | Geology and Geological Engineering, Colorado School of Mines, Golden, Colorado 80401. **Present address: Placer...the start of production in 1990 and June 2001, the mine is a significant gold producer in the southwest...Schematic north-south cross section through the Porgera mine, showing a dioritic intrusion in the center and...meters), and the northing refers to the Porgera mine grid. H, C, S) to characterize the hydrothermal...(prestage I) occur in the central and deep parts of the mine. Magnetite is the dominant mineral and contains |
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