 | | Journal (article/letter/editorial) | | Tourmaline on quartz, Cruzeiro mine, Minas Gerais, Brazil. Los Angeles County Museum of Natural History specimen...Pelt photo. MarcWApril: Beryl and calcite, La Pita mine, Maripi Boyacii, Columbia. Cal Graeber, Leonard...near Badger Creek, north of Coaldale, Fremont County, Colorado. Dave Bunk specimen, Jeff Scovil photo. July/August:...(Herkimer âdiamondsââ), Treasure Mountain Diamond mine, near Little Falls, New York. Uli Bahmann specimen...SepteniberlOctober: Gold, Smuggler Union mine, Telluride district, Colorado. Colorado School of Mines Museum specimen |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | Xu, Cheng, Kynicky, Jindrich, Chakhmouradian, Anton R., Qi, Liang, Song, Wenlei (2010) A unique Mo deposit associated with carbonatites in the Qinling orogenic belt, central China. Lithos, 118 (1) 50-60 doi:10.1016/j.lithos.2010.03.013 | Journal (article/letter/editorial) | | carbonatites to date: up to 1010 ppm Mo, 1130 ppm Y + GdâŚLu and (La/Yb)n = 1.2â2.7. The unusual trace-element...deposits, such as the famous Climax-type deposits in Colorado and New Mexico, USA (Carten et al., 1993; Klemm...Klemm et al., 2008), Endako mine in the Canadian Cordillera (Villeneuve et al., 2001), and Qinling in...barite; Mnz, monazite-(Ce); Par, parisite-(Ce); YâMg, unknown YâMg silicate; Bas, bastnäsite-(Ce). C. Xu...synthetic ThO2 (Th, MÎą) and U (U, Mb), synthetic YâAl garnet (Y, KÎą), REE glasses and orthophosphates (La, |  | | Report (volume) | | (Ce) or yttrium VII MINERALS OF THE RARE EARTHS (Y); for example, the formula for calkinsite is given...63 - 64 65 - 66 - 67 - 68 - 69 70 71 Yttrium (Y)- - - 39 'Promethium is a radioactive element with...Thorian brannerite- - - - - - - - ¡¡ Abukumalite - (Y, Ce, Ca) 5 (Si0 4 , P0 4 ) 3 (0, OH, F) Aeschynite...20 6 - - - - - Also eschynite Agardite - - - - - (Y, Ca, H) Cu6 [(As04)3 (OH) 6 ] ⢠3H20 Allanite - -...) 2 (OH) ¡ H 20- - - - - - Ashcroftine - K Na Ca [Y(OHhb [Si60 12 (OH) 6 ] ⢠4H 20 - Tentative formula |  | | Report (issue) | | fiedee aur â i â ~~ oes â ha - ia a ~ â Vs Y = * 4 re => - ae ~~ in: eae > = 9 <2 ...Geological of America, Boulder, INC. Place Colorado Printed in the United States by Edwards Inc...8137-1131-2 Published THE GEOLOGICAL Society Card Colorado Michigan Soctety 80301 48104 The publication...sis sa slocweessieece | OO BirindeR ever CMaOty Lake) ciseisele sees eee esis sisiecemecc ee |O BilwmomMountatny...oh ce bdd hos iad Rad Lakesacdeeerd 94 Steep Rock Lake .ssecececeveescssesssessereressesesveseses 97 SUdDULY |  | Gonçalves, Guilherme O., Lana, Cristiano, Buick, Ian S., Alkmim, Fernando F., Scholz, Ricardo, Queiroga, Glaucia (2019) Twenty million years of post-orogenic fluid production and hydrothermal mineralization across the external AraçuaĂ orogen and adjacent SĂŁo Francisco craton, SE Brazil. Lithos, 342. 557-572 doi:10.1016/j.lithos.2019.04.022 | Journal (article/letter/editorial) | | crystallization ages for hydrothermal monazite, rutile, and xenotime indicate that fluid circulation along the entire...hydrothermal minerals (monazite, rutile, quartz and xenotime) from quartz veins and used radiogenic isotope...known as the QuadrilĂĄtero FerrĂfero (QF), the mining district al., 2016). CE famous for world-class orogenic...2011). Their ages vary from 508 Ma in the ItambĂŠ district (the northernmost part of the EBPP; Gonçalves...veins from the QuadrilĂĄtero FerrĂfero (QF) and xenotime-rutile bearing quartz vein systems from the Novo |  | | Journal (article/letter/editorial) | | dolomites Zircon Amphibole Monazite- (Ce) Xenotime-(Y) Goethite Hematite Ilmenite Rutile Cassiterite...(Table 3, Fig. 6a). Monazite is associated with xenotime-(Y) a rather rare detrital component devoid of any...(monazite type IV). It is, in places, accompanied by xenotime and apatite. Oxides Magnetite, rutile and ilmenite...heavy minerals. Phosphates Monazite prevails over xenotime, apatite and rhabdophane among the phosphatic...treatment, reveals a similar trend to that in the x-y plot of âDonauplatinâ. Discussion Source of the Au |  | | Journal (issue) | | i_aK<, i â â , < D iv isio n .o fM in e ra lo g y The Smithsonian Institution .. eauor Wendell E. Wilson...................78 by Pete J. Dunn The snowbird Mine, Montanaâs Parisite Loca lity.....................Creek Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas........................................... 112 by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico......................... 115 by..................... 130 Friends of M in e ra lo g y.................................. 131 HPÂŽ cover: |  | | Book | | to be minerals. Microcline, Crystal Peak, Colorado, USA * 12 x 9x 5 om MINERALS: PRODUCTS OF A CHANGING...CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...zeolites. Calcite (septarian nodule), San Juan County, Utah, USA * 18 x 24x Bem 14 | MINERALS: PRODUCTS...Madagascar e(2x23x3em Quartz, Mount Ida, Arkansas, USA ° 14x 15 x 10 cm Corundum, Mozambique * 17 x 11...mineral pigments. LEFT: Malachite, Bwana MâKubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22 |  | | Journal (issue) | | oxidatie van jordisiet in een ertsader in de staat Colorado ilsemanniet: Mo3O8.nH2O ; geheten naar Ilsemann...molybdeenmijn ter wereld, bij het stadje Climax in de staat Colorado, terwijl de staat Utah de grote mijn...groep bezoekers voor de toegang tot de Climax mine, Colorado (1953). 196 Geonieuws 29(8), oktober 2004...Bolivia, op het -305 meter niveau van de Siglo XX mine bij Llallagua in BoliviĂŤ, beige tot gele aggregaten...aandacht van Russell Honea van de universiteit van Colorado, die het zaakje grondig onderzocht. chemische |  | | Journal (issue) | | ON 2022 RMAG FIELD TRIPS Registration open! Colorado Glaciology | June 25 | Minturn/Vail, CO Trip leader:...Portal Rhodochrosite Mine Tour | August 19 | Alma, CO Trip leader: Dean Misantoni, Mine Geologist Limited...FUTURE OF ROCKIES GEOLOGY HYATT REGENCY DENVER AT COLORADO CONVENTION CENTER OUTCROP | June 2022 10 SCAN...Icon What image would you choose to represent Colorado Geology on a specialty license plate? This question...red beds. Named the âGarFountain Creek in Teller County and renamed the den of Angels, the area was known |  | | Book | | primary copper are in the Keweenaw Peninsular, Lake Superior, USA, the largest being I 5 x 7 x 3m (approx....140mm (5½ in) long occurred in the Ray mine and in Bisbee, Arizona, USA. Very fine spinel-law twins up to...cavities in the Keweenaw Peninsula near Lake Superior, Michigan, USA. Wires, up to 100 mm (4 in) long, come...come also from the San Genaro Mine in Huancavelica and Uchucchaqua, Peru. New finds of silver wires, up...Dorado, California, US.A. Gold, 68 mm, Eagle's Nest Mine, California, US.A. Gold gold on it. Typical aggregates |  | | Journal (article/letter/editorial) | | substitutions between the A- and B- and between the A- and Y- sites. Only the romeĚite from Massiac, derived from... and not by post-crystallization alteration. The Y-site chemistry of romeĚite varies from locality to...Purdue University, West Lafayette, IN 47907-1397, USA 1 Editorial responsibility: T. Grove Introduction...been discovered by Damour (1841) in the Praborna mine (Piemont, Italy) and named in honor of French mineralogist...H2O-groups occur on the A- and Y-sites Site occupancy n: p: X O2) F)a OH)c Y OH) F) O2) K+b Rb+b Cs+b Tl+b |  | | Journal (article/letter/editorial) | | present study, mineralogy and geology act as x- and y-coordinates of a classiďŹcation chart of mineral resources...encompassing minerals and elements are plotted along the y-axis, forming the lines of the spreadsheet. These...present of mining and metallurgy of lead . . . . . . . . . . . 18.7.2. Past and present of mining and metallurgy...hampering our access to mineral deposits, such as mining depth controlled among others by the geothermal...Hewett in 1927 who was able to demonstrate that in mining countries exploitation, export and import of metals | | | Journal (article/letter/editorial) | | present study, mineralogy and geology act as x- and y-coordinates of a classiďŹcation chart of mineral resources...encompassing minerals and elements are plotted along the y-axis, forming the lines of the spreadsheet. These...present of mining and metallurgy of lead . . . . . . . . . . . 18.7.2. Past and present of mining and metallurgy...hampering our access to mineral deposits, such as mining depth controlled among others by the geothermal...Hewett in 1927 who was able to demonstrate that in mining countries exploitation, export and import of metals |  | | Book | | primary copper are in the Keweenaw Peninsular. Lake Superior, USA, the largest being 15 x 7 x 3m (approx. 50...(5'A in) long occurred in the Ray mine and in Bisbce, Arizona, USA. Very fine spincl-law twins up to...cavities in the Keweenaw Peninsula near Lake Superior, Michigan, USA. Wires, up to 100 mm (4 in) long, come...come also from the San Gcnaro Mine in Huancavclica and Uchucchaqua, Peru. New finds of silver wires, up...found in many localities in California, USA (Colorado Quartz mine. Nigger Hill and others). Fine leaf gold |  | | Report (issue) | | Front cover (clockwise starting at top left). Dry Lake Wind Power Project. This 63-megawatt-capacity facility...the site of a former landfill at Fort Carson, Colorado. Tellurium is a critical component for the development...potential environmental and health issues caused by the mining and processing of many mineral commodities may...the environmental considerations related to the mining of nonfuel mineral resources, including the modern...Chapter B. Environmental Considerations Related to Mining of Nonfuel Minerals By Robert R. Seal II, Nadine |  | | Book | | MINERALS FOR ATOMIC ENERGY Diamond Drilling on the Colorado Plateau. Courtesy Union Carbide and Carbon Corp...ore?" "Do I need a license to mine uranium?" "How do I stake a mining claim?" As a result of these inquiries...material for its development. R. D. N. New York, N. Y. July, 1954 VI ACKNOWLEDGMENTS In a work of this...which have participated hundreds of geologists, mining engineers, mineralogists, and prospectors, both...of Mines and Technical Surveys, Canada. Eldorado Mining and Refining, Ltd., Canada. Department of Atomic |  | Chen, Cheng-Hong, Liu, Yung-Hsin, Lee, Chi-Yu, Xiang, Hua, Zhou, Han-Wen (2012) Geochronology of granulite, charnockite and gneiss in the poly-metamorphosed Gaozhou Complex (Yunkai massif), South China: Emphasis on the in-situ EMP monazite dating. Lithos, 144. 109-129 doi:10.1016/j.lithos.2012.04.009 | Journal (article/letter/editorial) | | This allows simultaneous analysis of Th, U, Pb and Y at the same spot. A beam size of 5 Îźm (or a fully...monazite In order to know the variations of Ce, P, Y, Si and Ca relative to Th across the monazite BSE... 119 domain boundaries are observed only in Th, Y and Ca, and their results are presented in Fig. 10...Generally speaking, Ca follows the Th variation trend and Y displays a distribution close to the mirror image...(Fig. 5-2jâo). Basically, Ca and Y vary sympathetically with Th, but Y behaves with a larger ďŹuctuation |  | | Book | | '.:. :,.¡ ~'. ', â˘â˘ 1, â˘,¡ \:_)\_?. '.:,y::_.;:' ⢠.-.,¡¡: ..,;'.-¡.:¡.;:/f/t'l.._._._,, '¡¡¡â˘â˘::::â˘â˘...last, at www.MineralogicalRecord.com I IIMORIITE-(Y) EUROPE FRANCE Trimouns quarry, Luzenac, Ariege....extremely rare yttrium silicate-carbonate iimoriite-(Y) occurs at Trimouns as colorless, pink and pale brown...long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns |  | Gaudin, Anne, Ansan, VĂŠronique, Lorand, Jean-Pierre, Pont, Sylvain (2020) Genesis of a florencite-bearing kaolin deposit on ordovician schists at Saint-Aubin-des-Châteaux, Armorican Massif, France. Ore Geology Reviews, 120. 103445 doi:10.1016/j.oregeorev.2020.103445 | Journal (article/letter/editorial) | | order of abundance iron oxyhydroxides, zircon, xenotime, monazite, ilmenite, and barite (Fig. 11). Iron...systematically contains Ca, Sc, and Th as major elements. Xenotime occurs as corroded grains up to 30 Âľm in diameter...also hosted in monazite (SEM EDS data). Xenotime controls Y and HREE. The homogeneous distribution of...distribution patterns between two trace phases (xenotime +zircon). Zircon is the main concentrator of Sc...Fig. 12 for the transition elements (Sc, V, and Cr) Y and HREE that do not show systematic concentration |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...Strunz since 1941 (Strunz and Nickel 2001): ⢠Subsidim-y anions (OH,F,O) are positioned before the complex...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada |  | | Book | | discredited, a variety, etc. T Tsumeb (vol. 8, no. 3) M y Michigan Copper Country (vol. 23, no. 2) Co. Company...193-256 137-208 129-192 209-264 193-256 [ [ COLORADO-Ill] 177-256 121-184 89-168 1-120 1-88 [ ...177-256 185-280 169-248 [ 425-528 337--400 COLORADO-II] 321--400 337--400 ARIZONA-Ill] 337--400...69-132 65-128 1-64 11 / 1980 20 I 1989 [ COLORADO-I] [ 289-352 385-448 [ AUSTRALlA] 353-504...On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON |  | | Journal (issue) | | Petersburg University specimens **- St.-Petersburg Mining Museum specimens 2 W o r l d of Stones. Ng 1 I...the authors of this article, was opened in the Mining Museum of St. Petersburg not long ago and another...Unusual Crystallization or... Mineral Pathology? //Mine mlogicheskii zhurnal. 1989.1.11, N 2. p.96-98. 10...popularity in the world, while it is the leader in the USA. Recently, well known jewelry stones have been joined...graduating from the Petrograd (now St. Petersburg) Mining Institute. Working here for nearly a year, the |  | | Book | | exotic to readers from other continents because mining is currently pretty insigniďŹcant in Europe. However... . . . . . . . . . . . . . . . . 1.10 Open-Pit Mining . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . 1.11 Underground Mining . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . 1.13 Deep-Sea Mining . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . 4.4.1 Porphyry Molybdenum Deposits (Climax Type) . . . . . . 4.4.2 Porphyry Gold (Intrusion-Related |
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