 | | 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...Cosquez, through the late 20th century, when the Gachalá, Peñas Blancas, La Pita and other deposits were...are on the rise and may someday catch up, but Colombia is still the source of 60% of all gem-quality |  | | Journal (issue) | | EMERALD UPDATE Highlights of Bogota Symposium Colombia opened its arms to welcome the world’s leading...huge success with more than 300 delegates from Colombia and around the world taking part. More than 42...Symposium Report and Presentations 42 6 16 17 18 20 Colombia Hosts First High-Level Global Emerald Symposium...first international Emerald Congress was held in Colombia in 1997, no-one could have imagined that the sector...entering emerald mining in Zambia, Madagascar and Colombia. And Afghanistan is addressing its emerald mining |  | | Journal (issue) | | 296 Photoluminescence Spectra of Emeralds from Colombia, Afghanistan, and Zambia D. Brian Thompson, Christian...investigate the PL spectra of 48 samples from Colombia, Afghanistan, and Zambia. Their research strongly...CUBAGUA ISLA DE COCHE Costa Rica Panama Venezuela Colombia Brazil Ecuador El Amparo Chacopata Taguapire...Pinctada imbricata, industry in Venezuela and Colombia, with biological and ecological observations....ARTICLES PHOTOLUMINESCENCE SPECTRA OF EMERALDS FROM COLOMBIA, AFGHANISTAN, AND ZAMBIA D. Brian Thompson, Christian |  | | Journal (issue) | | California. Dr. Shirey is a senior scientist in the Department of Terrestrial Magnetism of the Carnegie Institution...Publication 8. University of Western Australia Geology Department, Perth, pp. 143–166. Hausel W.D. (1995) Diamonds...Martinez Cantera, 2014). Materials known by the U.S. Department of Labor to be produced by exploitation are listed...child labor. Material Forced Labor Emerald Colombia Child Labor Jade Myanmar (Burma) Myanmar (Burma)...Bangladesh, India, Zambia Adapted from the U.S. Department of Labor (2014). Other Forms of Criminal Activity |  | | Journal (issue) | | moved on to the Geological Survey of the Mines Department of New South Wales, and assisted with the mapping...Director of the Geological Survey in the Victoria Department of Mines and Water Supply in 1904, a position...becoming an inspector with the New South Wales Department of Mines in 1904. He took full advantage of these...to fascinate, delight and amaze me. Iridescent goethite, 8.5 cm, from the Tallering Peak iron mine, Mullewa...Craig Bosel/Michael Stott photo. Wulfenite on goethite, 14 cm, from the Whim Creek copper mine, Whim |  | | Journal (issue) | | 1970s, and as Deputy Director for the Illinois Department of Alcoholism and Substance Abuse. Upon retirement...living in Rome (Ann’s father worked for the U.S. Department 404 Si Frazier (1933–2020) of Agriculture there)...1923 the first safety department for the mine was founded. Initially this department was headed by a single...Montreal, Wisconsin,” prepared by the Wisconsin Department of Resource Development in 1965, suggested that...ore” and “needle ore” specimens of hematite and goethite, whereas the fine calcite, barite and rhodochrosite |  | | Journal (issue) | | January 2021, the Government of South Australia’s Department for Energy and Mining issued a 36-page report...inclusions in gem corundum from Mercaderes, Cauca, Colombia. Physics and Chemistry of Minerals, 44(3), 221–233...the Palo Arañado mine, Chivor mining district, Colombia. Photo courtesy of G. Martayan. Colombian Emerald...characterise some additional emerald oddities from Colombia using non-destructive techniques. They are true...deposits, and (2) an eastern belt that includes the Gachalá, Buenavista, Chivor, Agua Blanca and Macanal deposits |  | | Journal (issue) | | cm, from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department, Colombia. Gail & Jim Spann...Wenshan, Yunnan, China (#1969). Mark Andrews photo. Goethite, 3-mm view, from Bou Azzer, Ouarzazate, Morocco...Euclase, 5 cm, from the La Marina mine, Boyaca Department, Colombia. Tom Spann photo. 20 Supplement to The...Collection Topaz (var. Imperial) on oxidized goethite-kaolinite-quartz, 14.5 cm, from Ouro Preto, Minas...de Otuma, Paracas, Pisco, Pisco Province, Ica Department, Peru. No repairs or restorations. This specimen |  | | Journal (issue) | | Picture A crystal of emerald on calcite from Muzo, Colombia, from The Mineral Collection, Federal Institute...Keeper of Minerals in 1953 he ensured that his department was well equipped for the rapid analysis of...J. Gemm., 1991,22,6 1991, 22, 6 Emeralds from Colombia (Part 1)* 1)* George GeorgeBosshart Bosshart Switzerland...Chivor (Boyaca and Cundinamarca R) and the mines of Gachala in the south-east (Cundinamarca Province). Even...subordinate apatite and dolomite. Limonite (mainly goethite) on the one side and micas (muscovite, sericite |  | | Journal (issue) | | Chronicles developments at the Chivor emerald mine in Colombia between 1880 and 1925, based on archival records...research associate in the gem identification department at GIA in Carlsbad. He holds a bachelor’s degree...areas worldwide and oversees the field gemology department and curates GIA’s colored stone research collection...Ortiz The history of the Chivor emerald mine in Colombia is rife with legend and adventure. The tale traces...from or worked in Germany, the United Kingdom, Colombia, and the United States. These primary documents |  | | Journal (issue) | | finished preparing, circa 1995. Bryan Lees photo. goethite, ilmenite, or manganese oxides from phosphate...crystals to 1.6 cm in a malachitelined pocket in goethite and cuprite ore (14 cm) mined in 1973 from the...15.7 cm, from the Gachalá mine, Guavió-Guatequé, Cundinamarca Department, Colombia. Even though a piece...Huamachuco, Sánchez Carrión Province, La Libertad Department, Peru. Mim #1554, mined in 2013, acquired in...edu/geosciences/ opportunities/geosciences-museum/ Department of Geosciences University of Missouri-Kansas |  | | Book | | Panagiotis Voudouris is Professor of Mineralogy at the Department of Geology and Geoenvironment, National and Kapodistrian...Professor in Economic Geology-Geochemistry, at the Department of Mineralogy, Petrology, Economic Geology, School...Afghanistan (Panjsher Valley), Brazil (Itabira), Colombia (Coscuez), Ethiopia (Shakisso), Madagascar (Mananjary)...Šoštarić 5 and Vladimir Bermanec 2 1 2 3 4 5 * Department of Geosciences, Faculty of Sciences and Technology...University of Norway in Tromsø, N-9037 Tromsø, Norway Department of Geology, Faculty of Science, University of |  | | Book | | Consulting Geologist Department of Geology University EAFIT Medellín, Colombia Robert Peter Shaw Consulting...Tectonics Colombia 1938–1946 “Unique – a dream” Highlights • Key geological realms in Colombia were the...The Ganssers had four daughters (Ursula, born in Colombia, 1941; Manuela, 1949; Francesca, 1956; and Rosanna...and two sons (Mario, born in Colombia, 1943; Luca, also born in Colombia, 1945). In 2000, Gansser’s dear...the Escuela de Minas (Medellín, 1887) and the Department of Geology and Geophysics at the Unversidad Nacional |  | | Journal (issue) | | pearl oyster fishery zones (Western Australia Department of Fisheries, 2016). Hatchery-bred shells are...Vol. 31, No. 1/2, pp. 15–21. Western Australia Department of Fisheries (2016) Pearl Oyster Fishery: Western...was recently discovered on the northern coast of Colombia (Acevedo Gómez et al., 2018), not that far from...Tairona (100–1600 DC), Sierra Nevada de Santa Marta, Colombia: materia prima y areas de procedencia. Latin American...AUTHORS Dr. Belley is an assistant professor in the Department of Earth Sciences at Memorial University of Newfoundland |  | | Journal (issue) | | historical specimens in the collection of the Department of Applied Mineralogy and Geochemistry at the...collection of the Applied Mineralogy and Geochemistry Department at the Technical University of Munich, labelled...guarded by erudite members of the Tucson Police Department who stood ever-ready with relevant facts and...has Joe been any slouch in recovering beautiful goethite and smoky quartz specimens from the region, either)...bright, i.e. maxed out in the metallic luster department. The acanthite crystals are sharp cubes, some |  | | Journal (volume) | | August, 2010 Budapest, Hungary Published by the Department of Mineralogy, Geochemistry and Petrology, University...Mineralogica-Petrographica is published by the Department of Mineralogy, Geochemistry and Petrology, University...University of Szeged, Szeged, Hungary © Department of Mineralogy, Geochemistry and Petrology, University...nuclear power, the Office of Science of the U.S. Department of Energy has conducted a series of Research...Fig. 1: Structure of the (100) cleavage face of goethite obtained from surface x-ray scattering showing |  | | Journal (issue) | | Enterprise subsidiary called the Mogok Gems Mining Department, as well as mines operated by the jointventure...page 38. mines” were assigned to the Myanmar Department of Science and Technology, to prospect for radioactive...preserved in the collection of the Mineral Science Department of the Natural History Museum of Los Angeles...several more hands, it came to the British Museum’s Department of Mineralogy. Determined there to be a new species...Fergusonite-(Y) Ferrohögbomite-2N2S Geikielite Gibbsite Goethite Hematite Hibonite Ilmenite Kyawthuite Magnesiotaaffeite-2N’2S |
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Matacana Mine, Gachalá, Cundinamarca Department, Colombia