 | | Journal (article/letter/editorial) | | KARIBIB-OMARURU AREAS OF AND SOUTH EUGENE N. WEST IN THE ORANGE PEGMATITES RIVER AFRICA CAMERON...the area north of the Orange River, both in South West Africa, have become important sourcesof beryl and...lepidolite,.and have yielded cassiterite and columbite-tantalite. Prospecting and mining have been particularly... lithium minerals, cassiterite, or columbite-tantalite,or combinationsof these minerals. A variety of...lithium minerals, cassiterite, and columbite-tantalite as due to hydrothermal or pneumatolytic replacement |  | | Report (issue) | | silver, and lead. Tombstone district, with lead-silver ores. Pearce district, with silver ores. Dragoon...Dragoon Mountains, Manzoro district. Dos Cabezas Mountains, Dos Cabezas and Teviston districts. Huachuca Mountains...County-Globe-Miami district, with ores of copper and silver. Dripping Spring Mountains, Barnes district, with...and silver. Payson district. Graham County-Galiuro Mountains, Rattlesnake district. Pifialeno Mountains...County-Clifton-Morenci district, with ores of copper and silver. Maricopa County-Vulture district, with lead and |  | | Journal (article/letter/editorial) | | TIN-TANTALUM-LITHIUM PEGMATITES OF THE S•O JO_•O DEL REI DISTRICT, MINAS E. WM. GERAIS, BRAZIL x HEINRICH ABSTRACT...generationsof pegmatitesoccurin the S[o Jo•o del Rei district of Minas Gerais, Brazil: 1) a pre-tectonicgroup...lies at the easteud of the district, which is elongatedroughly east-west (Fig. 1). The east-westaxis...pegmatitearea is split into north and southpartsby the west-flowing Rio das Mortes,a tributaryof the Rio Grande...INDEX MAP OF T•[ S•,O dO•[O DEL REI PEGMATITE DISTRICT• MINAS GERAIS. BRAZIL FIG. 1. Index mapof the |  | | Journal (article/letter/editorial) | | Placitas district (Sandia Mountains), NE of Albuquerque: schorl. Tijeras Canyon district (Manzano Mountains)...N. of Reserve: quartz (chalcedony). Mogollon district, NE of Glenwood: acanthite, bornite, chalcocite... SW of Reserve: labradorite. Taylor Creek Tin district, Black Range. Adobe Ranch: cassiterite, hematite...(martite). Nugget Gulch: cassiterite, stolzite. Wilcox district, S. of Mogollon. Lone Pine mine: emmonsite, khademite...County Bear Canyon district, San Andres Mountains. Stevens mine: barite. Hembrillo district, San Andres Mountains |  | | Book (edition) | | 2. Porphyry Copper-Related Deposits The Bisbee District The Mammoth-St. Anthony Mine, Tiger Lee Le 2A... Wulfenite. Glove mine, Cottonwood Canyon, Santa Rita Mountains, Santa Cruz County. Bandy collection...regulatory function diminished until the mining district remains largely as an anachronism. But the habit...prospects, and even geology in terms of the old mining district names. Because so many of the locality references...Chrysocolla, with quartz and malachite. Live Oak pit, Miami, Gila County. Manuel Fraijo collection. Jeff Kurtzeman | | | Book (edition) | | 2. Porphyry Copper-Related Deposits The Bisbee District Tl1e Mammoth-St. Anthony Mine, Tiger 17 17 21... Wulfenite. Glove mine, Cottonwood Canyon, Santa Rita Mountains, Santa Cruz County. Bandy collection....regulatory function din1inished until the mining district remains largely as an anachronism. But the habit...prospects, and even geology in terms of the old mining district names. Because so many of the locality references...Chrysocolla, with quartz and malachite. Live Oak pit, Miami, Gila County. Manuel Fraijo collection. Jeff Kurtzeman |  | Michaud, Julie Anne-Sophie, Gumiaux, Charles, Pichavant, Michel, Gloaguen, Eric, Marcoux, Eric (2020) From magmatic to hydrothermal Sn-Li-(Nb-Ta-W) mineralization: The Argemela area (central Portugal) Ore Geology Reviews, 116. 103215 doi:10.1016/j.oregeorev.2019.103215 | Journal (article/letter/editorial) | | includes montebrasite, cassiterite and columbite-tantalite dispersed in rare metal granites. Vein-type mineralization...montebrasite, wolframite, cassiterite and columbite-tantalite in the latest. Country rock veins include a swarm...Noronha et al., 2013) and 326 ± 3Ma (U/Pb columbite-tantalite, Melleton and Gloaguen, 2015). Almost elliptical...wt% (FeO), and 0.01 wt% (MnO). For columbite-tantalite, standard deviations were calculated on 11 analyses...intragranitic Li-Sn-Nb-Ta-W veins which includes the Santa Rita W-bearing vein previously hand-exploited. 4.2 Disseminated |  | | Book (edition) | | ARIZONA • Wu!fenite. Red Cloud mine, Si/district, Trigo Mountains, La Paz County, Arizona. Smithsonian...Hydrothermal Deposits 63 The Bisbee District, Cochise County 64 The Tombstone District, Cochise County 70 The Mammoth-St...augmented; a discussion of the classical Tombstone district has been inserted between those of Bisbee and...regulatory function diminished until the mining district remains largely as an anachronism. But the habit...prospects, and even geology in terms of the old mining district names. Because so First and Second Editions - |  | | Journal (article/letter/editorial) | | accessory montebrasite, cassiterite and columbite-tantalite. The whole-rock chemistry is strongly peraluminous...of the world class Panasqueira W mine and 1.5 km west of the Fundão composite granite, the Argemela granite...mineralogically quite variable. One particular vein (the Santa Rita vein, SR; Fig. 1), located on the southeastern part...montebrasite, Cst: cassiterite, CT: columbite-tantalite, Kfs: K-feldspar, Wf: wolframite. 1: Holten et...zoned Mn-columbite-tantalite inclusions (CTII). CTI, the earliest columbite-tantalite generation, forms | | | Book (edition) | | OF ARIZONA Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian...Hydrothermal Deposits The Bisbee District, Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St...augmented; a discussion of the classical Tombstone district has been inserted between those of Bisbee and...regulatory function diminished until the mining district remains largely as an anachronism. But the habit...prospects, and even geology in terms of the old mining district names. Because so First and Second Editions = |  | | Book (edition) | | geographic district names have been replaced with a more descriptive term, metallic mineral district. This...reader to learn more about the geology of the district and to possibly predict the minerals that could...districts. Where possible, the metallic mineral district for each mineral locality is given for the mineral...thirty-minute drive from downtown Tucson, on the west side of the Tucson Mountains. The address is 2021...but the best material is from mines in the Globe-Miami area in Gila County. The Keystone Mine, the Inspiration |  | Andrade, M. B., Yang, H., Atencio, D., Downs, R. T., Chukanov, N. V., Lemée-Cailleau, M. H., Persiano, A. I. C., Goeta, A. E., Ellena, J. (2017) Hydroxycalciomicrolite, Ca1.5Ta2O6(OH), a new member of the microlite group from Volta Grande pegmatite, Nazareno, Minas Gerais, Brazil. Mineralogical Magazine, 81 (3) 555-564 doi:10.1180/minmag.2016.080.116 | Journal (article/letter/editorial) | | electrostatically into fractions: (1) cassiterite; (2) ‘tantalite’; (3) ‘microlite’ (‘djalmaite’); and (4) ilmenite...‘pyrochlore’, quartz, rutile, samarskite-(Y), spodumene, tantalite-(Mn), ‘tourmaline’, ‘varlamoffite’, xenotime-(Y)...(1998). The pegmatites of the Rio da Mortes tin district (Rolff, 1948) were first investigated by Guimarães...established by Guimarães (1950). He concluded that tantalite was contemporaneous with cassiterite; ‘uranmicrolite’...replacement of tantalite by microlite occurred (Peixoto and Guimarães, 1953). Whether tantalite altered to |  | Faulstich, Fabiano Richard Leite, Ávila, Ciro Alexandre, Neumann, Reiner, Silveira, Viktor S.L., Callegario, Levi S. (2016) Gahnite From the São João Del Rei Pegmatitic Province, Minas Gerais, Brazil: Chemical Composition and Genetic Implications. The Canadian Mineralogist, 54 (6) 1385-1402 doi:10.3749/canmin.1500091 | Journal (article/letter/editorial) | | its production of cassiterite, columbite, and tantalite from open-pit mines (Guimarães & Guedes 1944...is actively producing cassiterite, columbite, tantalite, microlite, K-feldspar, and spodumene. That mine...hosting Sn (cassiterite) and Nb-Ta (columbite, tantalite, and minerals of microlite group) mineralizations...U. (1986) Gahnite in an Archaean iron formation, West Greenland. Mineralogical Magazine 50, 175–177. APPEL...(2000) Gahnite in the ~3.75 Ga Isua Greenstone Belt, West Greenland. Mineralogical Magazine 64, 121–124. ASSUMPÇÃO |  | | Report (issue) | | wA A 7 PROSPECT 15N 02E 27 MU AMOLE DISTRICT BANNER DISTRICT BLUE HELL GROUP 19N 215W 101 35-03-A wA...115W 118 34-56-154 113-54-53W CATALINA DISTRICT CATALINA DISTRICT CHILDS-ALOWINKLE HUN CINNABAR MINE 02N...114-U9-45w 126 AG FA mAYBEE GROUP MU Pd AGA AU mIAM1 MIAMI-INSPIRATION DI MISSION MINI MOMMOTH MINE A 125 OBE...COPNELIAV (AJU)V ORACLE DISTRICT ORACLE DISTRICT OVERLAND HINE 045 P1MA DISTRICT DISTRICT PIIIAA PIMA ODEN...22S 23E 26 CALIFORNIA DISTRICT 155 29E 3 CAMPBELL MINE 235 24E 15 CuChISF DISTRICT 15S 122E 2 DEFIANCE |  | | Report (volume) | | ....................................... 102 District of Columbia ................................................................................... West Virginia..........................................vanadium minerals in the high plateau region of the West. The present bulletin, like the earlier work, gives...Charlottesville. Washington___Prof. Henry Landes, Seattle. West Virginia_.Dr. I. C. White, Morgantown. Wisconsin____Prof...Walker County. Pratt coal group mined at Pratt mines west of Birmingham, Blossburg, Brookside, Cardiff, and |  | | Report (issue) | | -------------------------------------------- 109 West edge of San Juan Basin ---------------------------------...areas -------------------------- 145 Mogollon district -------------------------------------------------------------...Principal zinc-producing mines in the Central district, Grant County, N. Mex -----------------------...of principal mines and types of ore in Central district, Grant County, N. Mex -----------------------...Twitchell stated that this mine was "probably situated west of the present town of Engle, Sierra County, N. |  | BATUMIKE, J, GRIFFIN, W, BELOUSOVA, E, PEARSON, N, OREILLY, S, SHEE, S (2008) LAM-ICPMS U–Pb dating of kimberlitic perovskite: Eocene–Oligocene kimberlites from the Kundelungu Plateau, D.R. Congo. Earth and Planetary Science Letters, 267 (3) 609-619 doi:10.1016/j.epsl.2007.12.013 | Journal (article/letter/editorial) | | The ages of Group I kimberlites in Kimberley District cluster around 87 Ma, similar to those determined...Mesoproterozoic Kibaran belt and the Congo–Kasai craton to the west and southwest, the Paleoproterozoic Ubendian belt...block and the Neoproterozoic Zambezi belt. The Zimbabwe craton lies further south (Fig. 1). The evolution...comtemporaneous with the Group I kimberlite in Kimberley District (South Africa). The Igwisi Hills volcanics were...value found on Group I kimberlites from Kimberley District is consistent with average (0.80 ± 0.1) of whole-rock |  | | Report (issue) | | Slope regions, materially fact, however, Great West at of $19,000,000, and Pacific conditions have...the a gold lode or vein made was few miles west of the vein to This of be lead prehistoric...famous Sierra del Oro, consti- known Cerrillos district, Mountains, the Fe Grant sixties of the past...now milling concentration in the West discovered and worked west of the in the year for in Santa...what has already been said cerning early mining West, these without preliminary some in Grant mention | | | Report (issue) | | impulse received in the development of the Great West was due to the discovery of gold in Santa Fe County...The first experiments in ore concentration in the west were conducted by J. Amberg, a German metallurgist...the first gold lode or vein discovered and worked west of the Mississippi was made in the year 1833, on...the Ortiz mine. In the Los Cerrillos district, a few miles west of the Ortiz Mountains, exist what appear...early mining and metallurgical operations in the West, these preliminary remarks would not be complete |  | | Report (issue) | | ........................... 30 Tijeras Canyon District ........................................................... 31 Black Range (Taylor Creek) Tin District .............................................................. 31 Mogollon (Cooney) District ..................................................................................... Baldy (Ute Creek) District ................................................................................ Cimarroncito District ............................................. |  | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...such as Porcupine and Hemlo districts; Noranda district, Quebec. USA: Mother Lode belt and others in...Australia: Kalgoorlie, Coolgardie and Norseman, West Australia. Name The etymology of the name has been...Localities Canada: Cobalt mining district and Thunder Bay District, Ontario. USA: several localities... Wire silver, Silver Islet Mine, Thunder Bay District, Ontario, Canada * 11.5 x 14x 11 om Silver has |  | | Book (edition) | | the West, ern States to civilization. . . it is clear that 1825 mining opened the West- . —Charles...together with the name of the county in which the district is located. In perusing the older literature,...has to spend some time in determining to which district a certain reference applies. Attention is here...each district on the map is added to the entry in the list to facilitate locating the district. HIGHLIGHTS...found only (as far as we know) on a mesa a few miles west of Los Lunas, New Mexico, and somewhere in the vicinity |  | | Report (issue) | | Europe (east) ...................... 83 Europe (west) ...................... 85 North America .........Bronze-brown; streak: yellow-brown; luster: vit district Corinthia in Austria and Slovenia, dravite is...and Parafba, Brazil; Sahatany Valley pegmatite district in Madagascar; Nigeria; Namibia; Nuristan Valley...Valley, Afghanistan and the Malkhan district in Russia's Transbaikal region have been the source of many...Earth. This complex, known as the Archean craton of West Greenland (or North Atlantic craton), formed during |  | | Journal (issue) | | paragenesis of the Little Three mine pegmatites, Ramona district, San Diego County, California ..................located on the Little Three property in the Ramona district, San Diego County, California. This mine, strictly...material produced from the Mursinka-Alabashka District, Urals, and the Volyn pegmatites in the Ukraine...Gerais, Brazil, and St. A nne’s mine, Karoi district, Zimbabwe. Fine specimens of dark green elbaite...Daggett group, respectively; Sterrett, 1908), both west o f the Little Three property, also were discovered |  | | Journal (issue) | | Winter Branch Chairmen Midlands: J.W. Porter North West: 1. Knight Scottish: J. Thomson Examiners AJ. Allnutt...Cyangugu district, SW Rwanda. See Investigations on sapphires from an alkali basalt, South West Rwanda'...Sapphires have been discovered in the Cyangugu district in south-west Rwanda (bordering Zaire) and details of...Investigations on sapphires from an alkali basalt, South West Rwanda M.S. Krzemnicki/ H.A. Hanni} R. Guggenheim3...Abstract A new deposit of sapphires in the Cyangugu district of SW Rwanda has been investigated. The sapphires |
|
