 | | Catalog/List | | natural crystal formations of emeralds. Important emerald gemstones and jewelry can be found in every gem...same cannot be said about exceptional natural emerald specimens. We estimate that there are less than...having two-thirds of the world’s finest known emerald specimens cannot be overstated. This has never...experience the wonder that is emerald. 3 The Legend of Fura & Tena The Muzo God of creation, Are, brought... and rivers near the city of Muzo (modern day western Boyacá, Colombia). Are then created one female |  | | Journal (issue) | | Special Emerald 2018 – Issue 40 All About Colored Gemstones World Emerald Update Highlights of the...the Second World Emerald Symposium, Bogotá International Gemstone Association AColored Publication of the...Issue 40 ׀InColor 1 2 InColor ׀Special Emerald 2018 InColorMagazine.com; Gemstone.org International... Contents In Side 5 Special World Emerald Update Editor’s Note World Emerald Challenge: Origins and Appellation...Appellation 16 The Second World Emerald Symposium in Colombia The Second World Emerald Symposium Focuses on Responsible |  | | Journal (article/letter/editorial) | | org afalster@mainemineralmuseum.org Muzo-habit Quartz Zigras Mine, Garland County, Arkansas Q uartz...Crystal Forms, we have selected Muzo-habit quartz from the Zigras mine at Blue Springs, Garland County...University Library] at 11:44 20 December 2017 Figure 1. Muzo-habit quartz crystal (15 cm tall) on matrix, mined...mined in 2015 from the bonanza zone at the Zigras mine, Blue Springs, Garland County, Arkansas. James Zigras...11:44 20 December 2017 Figure 2 (left). Typical Muzo-habit quartz (3.3 cm tall) from Joaquim Felício |  | | Journal (article/letter/editorial) | | represents the culmination of two expeditions to Colombia and Ecuador in 1853 and 1857, inspired by the...volume 47, January–February, 2016 The Emerald Mines of Colombia Thomas P. Moore The Mineralogical Record...organics-rich sedimentary rocks in the Department of Boyacá in west-central Colombia. From the early 16th century...when Imperial Spain took over deposits at Chivor, Muzo and Cosquez, through the late 20th century, when...these mines have produced world-class specimens of emerald. In recent times, major specimens of euclase, parisite-(Ce) |  | | Journal (issue) | | December 2015 WORLD EMERALD UPDATE Highlights of Bogota Symposium Colombia opened its arms to welcome...world’s leading emerald experts from October 13-15. The First International Emerald Symposium was a huge...delegates from Colombia and around the world taking part. More than 42 global emerald specialists from...Fedesmeraldas, the Colombian Emerald Federation, and supported by all the country’s emerald-related bodies and...challenges and opportunities faced by the world’s emerald industry, including resource management, manufacturing |  | | Journal (issue) | | (a variety of zoisite), 9 cm, from the Merelani mine, located on the slopes of the Lelatema Mountains...color zoning, 5.1 cm, from Rubaya, North Kivu Province, Democratic Republic of Congo Back cover: Top...Top left: Euclase, 2.2 cm, from the La Marina mine, Colombia. Top right: Topaz, 8.4 cm, from Ouro Preto...left: Phosphophyllite, 2 cm, from the Unificada mine, Potosi, Bolivia. Bottom right: Grossular, 3.5 cm...Fluorapatite on elbaite, 5.5 cm, from the Alto da Cabeca mine, Parelhas, Rio Grande do Norte, Brazil. Will Johnson |  | | Journal (article/letter/editorial) | | 04217 carlfrancis62@gmail.com ROBERT B. COOK Department of Geosciences Auburn University Auburn, Alabama...cookrob@auburn.edu Euclase La Marina Mine, Municipio de Pauna Boyacá, Colombia E uclase is a species whose...Rocks & Minerals, is a professor emeritus in the Department of Geosciences at Auburn University in Auburn...group, 11.2 cm tall, La Marina mine, Municipio de Pauna, Boyacá, Colombia. Scott Rudolph specimen, Jeff...lack modern verification, include the Lost River mine on the Seward Peninsula, Alaska; the Fisher prospect |  | Altenberger, Uwe, Rojas-Agramonte, Yamirka, Yang, Yueheng, Fernández-Lamus, Jimmy, Häger, Tobias, Guenter, Christina, Gonzalez-Pinzón, Alejandra, Charris-Leal, Felipe, Artel, Julia (2022) In Situ U–Th–Pb Dating of Parisite: Implication for the Age of Mineralization of Colombian Emeralds. Minerals, 12 (10) 1232 doi:10.3390/min12101232 | Journal (article/letter/editorial) | | Chinese Academy of Sciences, No. 19, Beitucheng Western Road, Chaoyang District, Beijing 100029, China...Nacional de Colombia, Bogotá 11001, Colombia Natural Colombia Mineral SAS, Bogotá, Colombia Correspondence:...from the world-famous emerald mines of the Muzo district, Boyacá Province, Colombia. Four samples of parisite-Ce...parisite-Ce collected from outcrops near Muzo have been geochemically studied and dated using the in situ...mineralization and crystallization of emerald deposits in Colombia. Furthermore, this study opens new avenues |  | | Report (issue) | | 1975-1984) production of pyromorphite at the Les Farges mine near Ussel, Corrèze, France, it was like catching...collector). Pyromorphite, 6 cm, from the Les Farges mine, Ussel, Corrèze, France. Ex Doug Toland collection...prospect at Mawi (Dave writes “Mawi mine”) in Nuristan Province, Afghanistan. (For more information on...================= The Tonglushan mine near Daye, Hubei Province, China—which dates back some 3500 years—is...copper mine in the world. Although not especially noted for collector-quality minerals, the mine surprised |  | | Journal (article/letter/editorial) | | the notable exception. KEYWORDS : gems, diamond, emerald, sapphire, ruby, geochemistry, exploration INTRODUCTION...elements can either impart an “off” color or 1 Department of Earth and Ocean Sciences University of British...sapphire (any other color of gem corundum), and emerald (green chromium/ vanadium-bearing gem beryl, Be3Al2Si6O18)...requirement for a major element and a chromophore is emerald. Beryl is a relatively rare mineral because there...with tectonic activity were sufficient to form emerald (e.g. Ottaway et al. 1994; Cheilletz and Giuliani |  | | Journal (article/letter/editorial) | | from Cabiche Municipal de Quípama, Boyacá Department, Colombia All specimen photography by Eddie Rivera...david@zigamineral.com JOHN RAKOVAN CHRIS EMPROTO Department of Geology and Environmental Earth Science Miami...of Cabiche, in Municipal de Quípama, Boyacá Department, Colombia; prepared by William Besse. S urrounded...urrounded by jungle in the mining region of Boyacá, Colombia, amidst mandarin and avocado trees is the...specimens had been found in this area. history of emerald fixation, Carranza gave orders for the miners to |  | | Report (issue) | | but fairly familiar finds—boleite from the Amelia mine, Baja California, Mexico; zunyite from Quartzsite...==== Sapphirine, 3 cm, from Androy, Toliary Province, Madagascar. The Arkenstone specimen and photo...mining area, Herrería-Valdáliga-Rionansa, Santander Province (region of 4 ===============================...classic—witness (below) the galena from the Dörnberg mine, Ramsbeck district, Nordrhein-Westfalen, Germany...recent finds on the dumps of the old La Vidale lead mine, Bréziès, Asprières, Aveyron, France, there is this |  | | Journal (article/letter/editorial) | | method for determining the source of an emerald, even down to the mine from which it was extracted” (emphasis...photograph of an emerald read, “New method can pinpoint what mine this uncut emerald came from.” Although...finding a fingerprint that could pinpoint a particular mine in every case, or even in most cases. The new technique...business. Beryl, variety emerald, 4.2 cm long, Cosquez, Boyacá, Colombia. Gene Meieran specimen, Jeff...gem dealers can confirm that a stone is from Muzo, Colombia, the most famous emer- Volume 80, November/December |  | | Journal (issue) | | Abstracts 187 Peñas Blancas: An historic Colombian emerald mine R. Ringsrud and E. Boehm 251 Book review ...Colombian emerald mine Ron Ringsrud and Edward Boehm Abstract: The Peñas Blancas emerald mine is part of...of Colombia’s Muzo mining region, an 800 km2 area that encompasses the famous Muzo, Coscuez and La Pita...the largest emerald district in Colombia, and it is the most productive and well-known emerald mining region...which sheds light on that of the entire Colombian emerald industry. Just as important, Peñas Blancas is finally |  | | Journal (issue) | | Characteristics of Blue to Yellow Beryl History of the Chivor Mine, Part I EDITORIAL 1 Spring 2020 VOLUME 56, No...Corundum and Beryl Color, Jade Artistry, the Chivor Emerald Mine’s History, and Swiss Rhodonite… Duncan Pay...yellow beryl. p. 35 66 History of the Chivor Emerald Mine, Part I (1880–1925): From Rediscovery to Early...Chronicles developments at the Chivor emerald mine in Colombia between 1880 and 1925, based on archival...diamond ring • Clarity-enhanced glass imitating emerald • Unusually large grandidierite • “Electronic device” |  | | Journal (article/letter/editorial) | | Environments. Minerals 2021, 11, 513. https:// Department of Earth and Planetary Sciences, Harvard University...settings associated with sediments (type IIB; Colombia) or, more commonly, with magmatism and regional...consistent with a sedimentary source origin. Type IA emerald REE patterns have upturns in the heavy REE (La/YbCC...occurring in Archaean host rocks. Modeling of type IA emerald compositions indicates that they form from magmatic...crustal protoliths. This geochemical signature links emerald formation with continental suture zones. Diamonds |  | | Report (issue) | | Tyson-originating examples from, oh, St.-Hilaire and the Jeffrey mine in Quebec; Ontario’s Flamboro quarry and Liscombe...called the “Cobalt Lode mine” (the Quebul specimen is attributed to the “Castle mine”). Stilbite and Chabazite...Safflorite coating silver, 5.2 cm, from the Castle mine, Gowganda area, Timiskaming District, Ontario, Canada...Pau, 50 km north of the Spanish border in the Department of Pyrénées-Atlantiques, France. Even in the...(also rendered “Chah Kharboze”) mine, Anarak district, Esfahan Province, Iran. The brilliantly red-orange |  | | Journal (issue) | | BARITE 13 cm, from Jebel Ouichane, Sagangane, Nador Province, Oriental Region, Morocco. Doug Fiske collection;...from the Gachalá mine, Guavió-Guatéque mining district, Boyacá Department, Colombia. Gail & Jim Spann...photo. Fluorite with quartz, 11 cm, from Fujian Province, China. Keith & Diane Brownlee collection; Joe...from Katlang, Mardan Dist., Khyber Pakhtunkhwa Province, Pakistan. Jeff Starr collection; Joe Budd photo...photo. Tanzanite, 7.6 cm, from the Merelani mine near Arusha, Tanzania. Barry & Beth Kitt collection; James |  | | Journal (issue) | | JANUARY-FEBRUARY 2016 • VOLUME 47 • NUMBER 1 $20 . The Emerald 1Iline£ of Jlolom6ia 1Iline.s, 1Ilineral.s, :pi... Moore COVER: EMERALD crystal with calcite, 6.5 cm, from the Cosq uez mine, Colombia; found in 1998............................................... 22 Mine Exploitation (or not) Today ......................Faults, Black Shales, Carbonate Veins ........ 21 Emerald Mineralization ....................................... 32 An Emerald Crystal Album .................................... 36 Great Emerald Crystals and |  | | Journal (issue) | | HPHT-Grown Synthetic Diamonds Diamonds from the Letšeng Mine Fall 2015 VOLUME 51, No. 3 EDITORIAL 221 Trapiche...Yannick Branquet Proposes a model for trapiche emerald formation based on petrographic, spectroscopic...Yellow HPHT-treated rough diamond • Colorzoned emerald • Orange faceted eosphorite • Large faceted hibonite...334 Letters Gem News International Large star emerald • Natural faceted red rutile • Rare “star and cross”...six-rayed pattern, from the renowned Peñas Blancas emerald region. The host rock, seen in the background, |  | | Journal (issue) | | SUMMER 2013 ISSUE 23 THE EMERALD CZAR IS GONE THE END OF A MYTH, START OF A NEW ERA Blue Sapphires... SUMMER 2013 ISSUE 23 SUMMER 2013 ISSUE 23 AN EMERALD CZAR IS GONE THE END OF A MYTH, START OF A NEW...The late ‘Emerald Czar’ Victor Carranza at the famous Muzo emerald mining area in Colombia. Photo courtesy...Inset: Thousands of artisanal emerald diggers, also called ‘guaqueros,’ in Muzo in 1992. Photo courtesy of...60 62 64 68 70 72 76 80 Industry News Zambia Emerald Auction Dilemma Raises Questions For Investors |  | | Journal (issue) | | GEMOLOGICAL INSTITUTE OF AMERICA Canada’s Diavik Mine Fabergé Imperial Bodyguards Responsible Sourcing...Production of Colored Stones Journey to the Chivor Emerald Mine Summer 2016 VOLUME 52, No. 2 EDITORIAL 103...Mining Diamonds in the Canadian Arctic: The Diavik Mine James E. Shigley, Russell Shor, Pedro Padua, Christopher...In Rainier’s Footsteps: Journey to the Chivor Emerald Mine Robert Weldon, Jose Guillermo Ortiz, and Terri...the famed emerald source through the adventures of Peter W. Rainier, who directed the mine from 1926 |  | | Journal (issue) | | Volume 38 / No. 1 / 2022 Colombian Emerald Oddities Pink-Orange Euclase from Brazil Inclusions in...Gemmological Education ARTICLES 26 Colombian Emerald Oddities: Review and Formation Mechanisms By Isabella...Displaying Gota de Aceite Effect in Colombian Emerald | Iolite from the Czech Republic | Sailboat-like...Blister Pearl | A Convincing Glass Imitation of Emerald 6 80 By Féodor Blumentritt and Emmanuel Fritsch...Spectrometer In late 2021, Gemetrix Pty Ltd (Perth, Western Australia) released the Inspectrum, an instrument |  | | Book | | EMERALD and OTHER BERYLS by JOHN SINKANKAS This is Beryls jewelers, gists, geologists, earth ...sciences, yet eminently facet and widely a Emerald historians, gemological Sinkankas, the permanent...metal beryllium. with Beginning author traces emerald—from its less ite, role of history’s pendix...Unmatched third is knowledge from author one emerald cutting and of exotic composition, physical...mineralogical once events. languages for beryl emerald logical to and part, Sinkankas explores and |  | | Book | | Hydrothermal Gem Deposits: 35 39 The Emerald Deposits of Colombia 4. Gemstones Formed in Pegmatites:...Diamond Pipes: 129 The Diamond Deposits of Argvle, Western Australia Index 141 FOREWORD Each gem deposit-whether...chapters: hydrothermal deposits, with the emeralds of Colombia as an example; the pegmatites of Minas Gerais...Zabargad Island, Egypt and the new find at Argyle in Western Australia are used as examples. It is worth noting...thanks goes to Dr. Art Montana, Chairman of the Department of Earth and Planetary Sciences at UClA for his |
|
Muzo Mine, Muzo Municipality, Western Boyacá Province, Boyacá Department, Colombia