 | | Catalog/List | | locality, Earth makes her own crystals; or the mine where a mineral was discovered, is akin to its ...tsavorite. Traveling west to the storied Tsumeb Mine is one of the very finest examples of the region’s...Dioptase Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia 13 cm tall x 14 cm wide Africa The mine we now call...Mibladen, Aït Oufella Caïdat, Midelt Cercle, Midelt Province, Drâa-Tafilalet Region, Morocco 12.7 cm tall x...calcite. 14 Africa Liddicoatite Tourmaline with Quartz Anjanbonoina, Antananarivo Prov., Madagascar 7 |  | | Journal (article/letter/editorial) | | represents the culmination of two expeditions to Colombia and Ecuador in 1853 and 1857, inspired by the...January–February, 2016 The Emerald Mines of Colombia Thomas P. Moore The Mineralogical Record 2709...organics-rich sedimentary rocks in the Department of Boyacá in west-central Colombia. From the early 16th century...times, major specimens of euclase, parisite-(Ce), quartz, pyrite and dolomite have also emerged. Episodes...are on the rise and may someday catch up, but Colombia is still the source of 60% of all gem-quality |  | | Journal (issue) | | 187 Peñas Blancas: An historic Colombian emerald mine R. Ringsrud and E. Boehm 251 Book review 254...(Brush Prairie), Dr E. Fritsch (Nantes), R. Galopim de Carvalho (Lisbon), Prof. L.A. Groat (Vancouver),...Colombian emerald mine Ron Ringsrud and Edward Boehm Abstract: The Peñas Blancas emerald mine is part of Colombia’s...mines. This is the largest emerald district in Colombia, and it is the most productive and well-known...compares this historic mine to other famous producers in the region. Keywords: Colombia, emerald, geology |  | Angiboust, Samuel, Fayek, Mostafa, Power, Ian M., Camacho, Alfredo, Calas, Georges, Southam, Gordon (2012) Structural and biological control of the Cenozoic epithermal uranium concentrations from the Sierra Peña Blanca, Mexico. Mineralium Deposita, 47 (8) 859-874 doi:10.1007/s00126-012-0408-5 | Journal (article/letter/editorial) | | epithermal uranium concentrations from the Sierra Peña Blanca, Mexico Samuel Angiboust & Mostafa Fayek & Ian...Abstract Epithermal uranium deposits of the Sierra Peña Blanca are classic examples of volcanic-hosted deposits...users. S. Angiboust (*) Institut des Sciences de la Terre de Paris, UMR 7193 CNRS, Université Pierre et...angiboust@upmc.fr S. Angiboust : M. Fayek : A. Camacho Department of Geological Sciences, University of Manitoba...I. M. Power : G. Southam Department of Earth Sciences, University of Western Ontario, London, ON N6A 5B7 |  | Dobson, Patrick F., Fayek, Mostafa, Goodell, Philip C., Ghezzehei, Teamrat A., Melchor, Felipe, Murrell, Michael T., Oliver, Ronald, Reyes-Cortés, Ignacio A., De La Garza, Rodrigo, Simmons, Ardyth (2008) Stratigraphy of the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico. International Geology Review, 50 (11) 959-974 doi:10.2747/0020-6814.50.11.959 | Journal (article/letter/editorial) | | the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico a b c Patrick F. Dobson...f f Oliver , Ignacio A. Reyes-Cortés , Rodrigo De La Garza & Ardyth Simmons e a Lawrence Berkeley...Alamos National Laboratory f Universidad Autónoma de Chihuahua, Chihuahua, Mexico Published online: 06...Ronald Oliver , Ignacio A. Reyes-Cortés , Rodrigo De La Garza & Ardyth Simmons (2008) Stratigraphy of...the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico, International Geology Review |  | Reyes-Cortés, Manuel, Fuentes-Cobas, Luis, Torres-Moye, Enrique, Esparza-Ponce, Hilda, Montero-Cabrera, María Elena (2010) Uranium minerals from the San Marcos District, Chihuahua, Mexico. Mineralogy and Petrology, 99 (1) 121-132 doi:10.1007/s00710-009-0104-z | Journal (article/letter/editorial) | | 1007/s00710-009-0104-z ORIGINAL PAPER Uranium minerals from the San Marcos District, Chihuahua, Mexico Manuel Reyes-Cortés...two uranium deposits (Victorino and San Marcos I) of Sierra San Marcos, located 30 km northwest of Chihuahua...plasma spectrometry, and gamma spectrometry. At the San Marcos I deposit, uranophane Ca(UO2)2Si2O7·6(H2O)...activity during post-orogenic evolution of Sierra San Marcos. The secondary mineralization occurred through...Montero-Cabrera (*) Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, 31109 Chihuahua |  | | Report (volume) | | GOVERNMENT PRINTING OFFICE, WASHINGTON : 1996 U.S. DEPARTMENT OF THE INTERIOR BRUCE BABBITT, Secretary U.S........................ Definition of a Uranium Province....................................................................... Description of Uranium Province Model................................................................ Athabasca Basin Uranium Province, Canada ..................................................... Blind River–Elliot Lake Uranium Province, Canada...................................... |  | Denton, J.S., Goldstein, S.J., Paviet, P., Nunn, A.J., Amato, R.S., Hinrichs, K.A. (2016) A record of uranium-series transport at Nopal I, Sierra Peña Blanca, Mexico: Implications for natural uranium deposits and radioactive waste repositories. Chemical Geology, 434. 12-27 doi:10.1016/j.chemgeo.2016.03.034 | Journal (article/letter/editorial) | | Uranium-Series Transport at Nopal I, Sierra Peña Blanca, Mexico: Implications for Natural Uranium Deposits...Uranium-Series Transport at Nopal I, Sierra Peña Blanca, Mexico: Implications for Natural Uranium Deposits...Uranium-Series Transport at Nopal I, Sierra Peña Blanca, Mexico: Implications for Natural Uranium Deposits... PO Box 1663, Los Alamos, New Mexico 87545 2 Department of Energy, Office of Nuclear Energy, 19901 Germantown...dolomite and quartz) from one such analog; the Nopal I uranium ore deposit situated at Peña Blanca in the Chihuahua |  | Levresse, Gilles, Villarreal-Fuentes, Janet, Nieto-Samaniego, Angel F., Alexandre, Paul, Corona-Esquivel, Rodolfo, Solé Viñas, Jesus (2017) New metallogenic model of telescoped Eocene-Miocene Au-U epithermal mineral deposit in the Placer de Guadalupe district, Chihuahua, Mexico. Ore Geology Reviews, 91. 133-152 doi:10.1016/j.oregeorev.2017.10.011 | Journal (article/letter/editorial) | | Eocene-Miocene Au-U epithermal mineral deposit in the Placer de Guadalupe district, Chihuahua, Mexico Gilles Levresse...Eocene-Miocene Au-U epithermal mineral deposit in the Placer de Guadalupe district, Chihuahua, Mexico, Ore Geology...Eocene-Miocene Au-U epithermal mineral deposit in the Placer de Guadalupe district, Chihuahua, Mexico Gilles Levresse1...Corona-Esquivel3, Jesus Sole3 1 Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla No...2 Queens University, Ontario, Canada 3 Instituto de Geología, UNAM, Ciudad Universitaria, Mexico Abstract |  | Escuder Viruete, J., Joubert, M., Urien, P., Friedman, R., Weis, D., Ullrich, T., Pérez-Estaún, A. (2008) Caribbean island-arc rifting and back-arc basin development in the Late Cretaceous: Geochemical, isotopic and geochronological evidence from Central Hispaniola. Lithos, 104 (1) 378-404 doi:10.1016/j.lithos.2008.01.003 | Journal (article/letter/editorial) | | Pérez-Estaún d a c Instituto Geológico y Minero de España, C. Ríos Rosas 23, 28003 Madrid, Spain b BRGM...the mainly Campanian group IV basalts of the Peña Blanca, Siete Cabezas and Pelona–Pico Duarte Formation...lithos.2008.01.003 arc. Modern examples in the Western Pacific, as the Mariana Trough back-arc basin,...zone; BGFZ, Bonao–La Guácara fault zone; SJRFZ, San Juan–Restauración fault zone; EPGFZ, Enriquillo–Plantain...and Hato Viejo (HVFZ) fault/shear zones. LCB, Loma de Cabrera; LTB, Loma del Tambor; MB, Macutico; and |  | | Catalog/List | | Minshull Chief Operating Officer DIRECTORY FOR DEPARTMENT SPECIALISTS AND SERVICES COINS & CURRENCY COINS...com HA.com/FineArt Pinups and Illustration Art WESTERN AMERICANA Ed Jaster, Ext. 1288 EdJ@HA.com HA...V.P. Auction Operations Norma@HA.com CREDIT DEPARTMENT Marti Korver, Ext 1248 Marti@HA.com Eric Thomas...difficult to obtain. One of his favorite minerals is Quartz, as can be seen by the wide variety of types and...specimens”, he particularly favored the rare “Japan-Law” Quartz twins and has many unusual ones in his collection |  | Villarreal-Fuentes, Janet, Levresse, Gilles, Nieto-Samaniego, Angel F., Alexandre, Paul, Corona-Esquivel, Rodolfo (2016) Geochemistry and geochronology of the Sierra de Gomez Limestone-hosted U deposit, Chihuahua: Implications for distribution of Rio Grande rift mineral deposits in northern Mexico. Ore Geology Reviews, 76. 19-34 doi:10.1016/j.oregeorev.2016.01.004 | Journal (article/letter/editorial) | | com/locate/oregeorev Geochemistry and geochronology of the Sierra de Gomez Limestone-hosted U deposit, Chihuahua: Implications...Corona-Esquivel c a b c Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla No...Mexico Queens University Ontario, Canada Instituto de Geología, UNAM, Ciudad Universitaria, Mexico a r...the Chihuahua Central Graben. The age of the Sierra de Gomez U-deposit is 1.8 Ma (based on LA-MC-ICP-MS...contemporaneous with the late mineralization event of the Peña Blanca U-deposit, as well as Rio Grande Rift (RGR)-type |  | Camprubí, Antoni, González-Partida, Eduardo, Richard, Antonin, Boiron, Marie-Christine, González-Ruiz, Luis, Aguilar-Ramírez, César, Fuentes-Guzmán, Edith, González-Ruiz, Daniel, Legouix, Claire (2019) MVT-Like Fluorite Deposits and Oligocene Magmatic-Hydrothermal Fluorite–Be–U–Mo–P–V Overprints in Northern Coahuila, Mexico. Minerals, 9 (1) 58 doi:10.3390/min9010058 | Journal (article/letter/editorial) | | 3 1 2 3 4 5 * Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria...Coyoacán, Ciudad de México, Mexico Centro de Geociencias, Universidad Nacional Autónoma de México, Boulevard...egp@geociencias.unam.mx GeoRessourcesLab, Université de Lorraine, Boulevard des Aiguillettes, BP 70239, 54506...Minería y Consultoría, S.A. de C.V. Ciprés 104, Frac. Jurica, 76100 Santiago de Querétaro, Querétaro, Mexico;...G.-R.) Programa de Posgrado en Ciencias de la Tierra, Universidad Nacional Autónoma de México, Ciudad |  | | Journal (article/letter/editorial) | | Antarctica), SAH 97096 (Sahara Desert, Africa), and Peña Blanca Spring; (2) to characterize the petrography and...to their ~10–30 μm grain size) and 1 area in Peña Blanca Spring. Terrestrial samples: The Ilímaussaq Complex...augitebearing syenites, (2) peralkaline granites and quartz syenites, and (3) peralkaline nepheline-bearing...located in the central portion of the Kola Alkaline province. It comprises a suite of 24 alkalinecarbonatitic-ultrabasic...3, ALH 77295 and SAH 97096) and one aubrite (Peña Blanca Spring) were selected for this study (Table 1) |  | | Catalog/List | | directly from the miners at the Elmwood Mine in Tennessee, when the mine was actively producing twenty years...Auction 3 52001 HEMATITE Elba Island, Livorno Province, Tuscany, Italy If there was ever a specimen that...SZENICSITE with POWELLITE Jardinera No. 1 Mine, Inca de Oro, Chañaral Province, Atacama Region, Chile Terry Szenics...mineral came from one pocket in the Jardinera No. 1 Mine. That find was roughly one cubic meter in volume...MANGANOCALCITE Pachapaqui District, Bolognesi Province, Ancash Department, Peru It is difficult to believe that |  | | Journal (article/letter/editorial) | | b, Lisa Peters b, William C. McIntosh b a b Department of Earth and Environmental Sciences, New Mexico...two experiments, pure hypogene jarosite from Peña Blanca Mexico (PB; 9.42 ± 0.22 Ma) and a mixture of...and Conroy, 2003; ⁎ Corresponding author at: Department of Earth and Planetary Sciences, University of...1. Sample preparation We used jarosite from Peña Blanca Mexico (PB) to evaluate the effects of HF on...supergene jarosite; sil = silicates (clay, kspar, quartz). a Dated samples. 3. Results 3.1. Mass loss All |  | Torró, Lisard, Proenza, Joaquín, Espaillat, Julio, Belén-Manzeta, Albert, Román-Alday, María, Amarante, Alberto, González, Norverto, Espinoza, Jorge, Román-Alpiste, Manuel, Nelson, Carl (2018) The Discovery of the Romero VMS Deposit and Its Bearing on the Metallogenic Evolution of Hispaniola during the Cretaceous. Minerals, 8 (11) 507 doi:10.3390/min8110507 | Journal (article/letter/editorial) | | * Especialidad en Ingeniería Geológica, Facultad de Ciencias e Ingeniería, Pontificia Universidad Católica...(PUCP), Av. Universitaria 180, San Miguel, Lima 15088, Peru Departament de Mineralogia, Petrologia i Geologia...Geologia Aplicada, Universitat de Barcelona (UB), Martí i Franquès s/n, 08028 Barcelona, Spain; japroenza@ub...) Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, Av. de las Palmeras, 4, Armilla...the 1970s that led to the discovery of the Cerro de Maimón volcanogenic massive sulfide (VMS) and the |  | Markus, Kathrin, Moroz, Lyuba, Arnold, Gabriele, Henckel, Daniela, Hiesinger, Harald, Rohrbach, Arno, Klemme, Stephan (2018) Reflectance spectra of synthetic Fe-free ortho- and clinoenstatites in the UV/VIS/IR and implications for remote sensing detection of Fe-free pyroxenes on planetary surfaces. Planetary and Space Science, 159. 43-55 doi:10.1016/j.pss.2018.04.006 | Journal (article/letter/editorial) | | orthoenstatite, and diopside and the aubrite Peña Blanca Spring (PBS). The SC additional synthetic pyroxenes...enstatites with EP naturally occurring enstatites. Peña Blanca Spring was an observed fall in 1946 with a total...(Keil, 2010; Lonsdale, 1947). Our sample of Peña Blanca Spring consists of AC C enstatite with the...~93 vol% of our sample. The powdered sample of Peña Blanca Spring was sieved to a <90 µm grain size fraction...compositions of synthetic pyroxenes and enstatite in Peña Blanca Spring (PBS) in wt%. Composition of enstatite |  | | Journal (article/letter/editorial) | | soufre associé aux minéralisations Pb-Zn de type Mississippi Valley de la chaîne des Beni Snassen orientaux...Canada)—Metallogenic interpretations—Christian Le Carlier de Veslud, Michel Cuney, Guillaume Lorilleux, Jean-Jacques...the placer gold deposit of the Taymen’ river (Western Priokhotsk Region, Russia)—V.V. Ivanov, A.M. Lennikov...occurrence in Laowanchang gold deposit, Guizhou Province, southwest of China—Yuangen Yang, Shirong Liu...the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico—Patrick F. Dobson, Mostafa |  | Schindler, Michael, Fayek, Mostafa, Courchesne, Britanney, Kyser, Kurt, Hawthorne, Frank C. (2017) Uranium-bearing opals: Products of U-mobilization, diffusion, and transformation processes. American Mineralogist, 102 (6) 1154-1164 doi:10.2138/am-2017-5700 | Journal (article/letter/editorial) | | Courchesne1, Kurt Kyser3, and Frank C. Hawthorne2 1 Department of Earth Sciences, Laurentian University, Sudbury...Sudbury, Ontario P3E 2C6, Canada Department of Geological Sciences, University of Manitoba, Winnipeg, Manitoba...Manitoba R3T2N2, Canada 3 Department of Geological Sciences and Geological Engineering, Queen’s University...the interface of the phase with microcrystalline quartz. Red- to black-colored precipitates of vorlanite...microcrystalline quartz. Similar O-isotope compositions of opal-CT and associated microcrystalline quartz indicate |  | Escuder Viruete, J., Contreras, F., Stein, G., Urien, P., Joubert, M., Pérez-Estaún, A., Friedman, R., Ullrich, T. (2007) Magmatic relationships and ages between adakites, magnesian andesites and Nb-enriched basalt-andesites from Hispaniola: Record of a major change in the Caribbean island arc magma sources. Lithos, 99 (3) 151-177 doi:10.1016/j.lithos.2007.01.008 | Journal (article/letter/editorial) | | T. Ullrich e a e Instituto Geológico y Minero de España, C. Ríos Rosas 23, 28003 Madrid. Spain b INYPSA...Corresponding author. Instituto Geológico y Minero de España. Geología y Geofísica. C. La Calera 1, 28760...zone; BGFZ = Bonao-La Guácara fault zone; SJRFZ = San Juan–Restauración fault zone; EPGFZ = Enriquillo–Plantain...(Contreras et al., 2004; Stein et al., 2004). LCB = Loma de Cabrera batholith; LTB = Loma del Tambor batholith;...the Duarte Complex; (5) the Tireo Fm; (6) and Peña Blanca Fm basalts. All these units underwent variable |  | Giuliani, G., France-Lanord, C., Cheilletz, A., Coget, P., Branquet, Y., Laumomnier, B. (2000) Sulfate Reduction by Organic Matter in Colombian EmeraldDeposits: Chemical and Stable Isotope (C, O, H) Evidence. Economic Geology, 95 (5) 1129-1153 doi:10.2113/gsecongeo.95.5.1129 | Journal (article/letter/editorial) | | (C, O, H) Evidence GASTON GIULIANI,† IRD, Institut de Recherche pour le Développement, and, CRPG-CNRS,...ALAIN CHEILLETZ, ENSG, Ecole Nationale Supérieure de Géologie, Rue du Doyen Marcel Roubault, BP40, 54501...are contained within two zones, the eastern and western emerald zones, in the Eastern Cordillera. Mineralizing...isotope composition range (δ18O = 17.8 ± 0.3‰). The western emerald zone contains carbonates with relatively...(eastern emerald zone: 7.7 < δ18OFluid < 12.8‰; western emerald zone: 8.2 < δ18O Fluid < 17.8‰) and emerald |  | | Journal (issue) | | Reveals Largest Violet Diamond Recovered from Argyle Mine Gemology 32 18 21 26 Harvard Mineral Heritage...sapphire, the name of a specific country, such as Colombia, Burma or Ceylon, is tied to the higher quality...provenance of colored gemstones all the way to the mine that produce the stone. The vertically integrated...possible tied to transparency and provenance. from mine to market is being developed strongly. As a result...branding strategies are increasingly being related to mine sites, local towns or geographical areas. There |  | | Journal (article/letter/editorial) | | Shearer, Jim M. Karner Institute of Meteoritics, Department of Earth and Planetary Sciences, 1 University...in four jarosite samples, from Peña Blanca, Mexico, Apex Mine, Arizona, Gold Hill, Utah, and Post Pit...one curve was used for all of the REE. The Peña Blanca jarosite, previously analyzed by INAA and SIMS...Apex Mine, AZ, Gold Hill, UT, Post Pit, NV, and Peña Blanca, Mexico. The sample from Apex Mine, AZ,...is primarily composed of euhedral to subhedral quartz crystals, measuring 25 lm and larger across. The |  | | Report (issue) | | Open-File Report 2016–1152 Plate 2 of 2 U.S. Department of the Interior U.S. Geological Survey 5 34...Ta Ta Qy Qy 70 70 Quartz monzonite 3300 28 34 34 Biotite-hornblende quartz monzonite 6 511 111°45'...Miocene Nogales Formation m rai h Ep EXPLANATION Quartz Monzonite of Mount Benedict (Jurassic) 72 72 8...4 Ql2 5 Qyy Q Qlr2 Qlr 2 3 Ql2 Ql2 Q Ql2 San Cayetano Mts. Jb b K Kss Qlr Ql Q lr2 lr 200 ...QTa 435 JURASSIC Paja DS TAT ES XIC O ME QUARTZ MONZONITE OF MOUNT BENEDICT 155 Qyy Q Qll1 Q |
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Peña Blanca Mine, San Pablo de Borbur, Western Boyacá Province, Boyacá Department, Colombia