 | Malíčková, Iveta, Bačík, Peter, Fridrichová, Jana, Hanus, Radek, Illášová, Ľudmila, Štubňa, Ján, Furka, Daniel, Furka, Samuel, Škoda, Radek (2021) Optical and Luminescence Spectroscopy of Varicolored Gem Spinel from Mogok, Myanmar and Lục Yên, Vietnam. Minerals, 11 (2) 169 doi:10.3390/min11020169 | Journal (article/letter/editorial) | | Varicolored Gem Spinel from Mogok, Myanmar and Lục Yên, Vietnam Iveta Malíčková 1 , Peter Bačík 1,2, * ...Varicolored Gem Spinel from Mogok, Myanmar and Lục Yên, Vietnam. Minerals 2021, 11, 169. https://doi.org/10...of natural spinel from Mogok, Myanmar and Lục Yên, Vietnam. All samples were crystal fragments of various...twelve spinel samples from two localities—Luc Yen, Vietnam and Mogok, Myanmar. These have a different...the Himalayan orogeny. The geology of northern Vietnam is dominated by metamorphic rocks (mainly medium-grade |  | | Journal (issue) | | Sapphire from Mogok, Myanmar Gemstone Mining in Vietnam Winter 2013 VOLUME 49, No. 4 EDITORIAL 187 ...formation. 223 Blue Sapphires from the Baw Mar Mine in Mogok Hpone-Phyo Kan-Nyunt, Stefanos Karampelas...pg. 223 233 Update on Gemstone Mining in Luc Yen, Vietnam Pham Van Long, Vincent Pardieu, and Gaston...Gaston Giuliani Explores the emergence of the Luc Yen area as a producer of corundum, spinel, tourmaline,... Myanmar; an update on gemstone mining in Luc Yen, Vietnam; and the characteristics of coated jadeite |  | Garnier, Virginie, Giuliani, Gaston, Maluski, Henri, Ohnenstetter, Daniel, Phan Trong, Trinh, Hoàng Quang, Vinh, Pham Van, Long, Vu Van, Tich, Schwarz, Dietmar (2002) Ar–Ar ages in phlogopites from marble-hosted ruby deposits in northern Vietnam: evidence for Cenozoic ruby formation. Chemical Geology, 188 (1) 33-49 doi:10.1016/s0009-2541(02)00063-3 | Journal (article/letter/editorial) | | phlogopites from marble-hosted ruby deposits in northern Vietnam: evidence for Cenozoic ruby formation Virginie...CNST, Nghia Dô, Câu Giây, Hanoi, Viet nam e Vietnam National Gem and Gold Corporation, 91 Dinh Tien...Street, Hanoi, Viet nam f Laboratory of Geology, Vietnam National University, 90 Nguyen Trai Road, Thanh...ruby deposits in Yen Bai, Luc Yen and Quy Chau mining districts, in northern Vietnam. The principal results...the Red River shear zone, the phlogopites from the Yen Bai deposits yielded Miocene cooling ages between |  | Ngoc Khoi, Nguyen, Hauzenberger, Christoph A., Anh Tuan, Duong, Häger, Tobias, Van Nam, Nguyen, Thuy Duong, Nguyen (2016) Mineralogy and petrology of gneiss hosted corundum deposits from the Day Nui Con Voi metamorphic range, Ailao Shan–Red River shear zone (North Vietnam) Neues Jahrbuch für Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry, 193 (2) 161-181 doi:10.1127/njma/2016/0300 | Journal (article/letter/editorial) | | April 2016 Article Mineralogy and petrology of gneiss hosted corundum deposits from the Day Nui Con Voi...range, Ailao Shan–Red River shear zone (North Vietnam) Nguyen Ngoc Khoi, Christoph A. Hauzenberger, Duong...typically associated with marbles in northern Vietnam. Relatively little attention has been paid to corundum...range, Ailao Shan–Red River shear zone, North Vietnam. The partly migmatized gneisses contain gray, grayish...~300 °C at ~23 Ma. Key words: corundum deposit, gneiss, Day Nui Con Voi range, Ailao Shan–Red River shear |  | Tran, Hoa Trong, Polyakov, Gleb V., Tran, Anh Tuan, Borisenko, Alexander S., Izokh, Andrey E., Balykin, Pavel A., Ngo, Phuong Thi, Pham, Dung Thi (2016) Intraplate Magmatism and Metallogeny of North Vietnam - Modern Approaches in Solid Earth Sciences No. 11. Springer International Publishing. doi:10.1007/978-3-319-25235-3 | Book | | Intraplate Magmatism and Metallogeny of North Vietnam Modern Approaches in Solid Earth Sciences Volume...Magmatism and Metallogeny of North Vietnam Trong-Hoa Tran Vietnam Academy of Science and Technology...Institute of Geological Sciences Hanoi, Vietnam Tuan-Anh Tran Vietnam Academy of Science and Technology Institute...Institute of Geological Sciences Hanoi, Vietnam Andrey E. Izokh Russian Academy of Science Institute of...Pham Vietnam Academy of Science and Technology Institute of Geological Sciences Hanoi, Vietnam Thi-Phuong |  | | Journal (issue) | | ISSN: 1355^1565 129 Gem corundum deposits in Vietnam Pham Van Long1, Hoang Quang Vinh2, Virginie Gamier3...Trinh2 1. Vietnam National Gem and Gold Corporation, 91 Dinh Tien Hoang Street, Hanoi, Vietnam 2. Institute...Geological Sciences, CNST, Nghia Dô, Câu Giây, Hanoi, Vietnam 3. CRPG/CNRS, UPR 2300, BP 20, 54501 Vandœuvre...been recovered from the Luc Yen and Quy Chau mining areas in northern Vietnam. Since 1991, 'basaltic'-type...('BGY') sapphires have been mined in southern Vietnam. This article briefly reviews the history and geology |  | Garnier, Virginie, Giuliani, Gaston, Ohnenstetter, Daniel, Fallick, Anthony E., Dubessy, Jean, Banks, David, Vinh, Hoàng Quang, Lhomme, Thérèse, Maluski, Henri, Pêcher, Arnaud, Bakhsh, Kausar Allah, Long, Pham Van, Trinh, Phan Trong, Schwarz, Dietmar (2008) Marble-hosted ruby deposits from Central and Southeast Asia: Towards a new genetic model. Ore Geology Reviews, 34 (1) 169-191 doi:10.1016/j.oregeorev.2008.03.003 | Journal (article/letter/editorial) | | Geological Sciences, CNST, Nghia Dô, Câu Giây, Hanoi, Vietnam g Laboratoire de Géochronologie, Université de...Pakistan j Vietnam National Gem and Gold Corporation, 91 Dinh Tien Hoang street, Hanoi, Vietnam k Gübelin...tectonics that were active, from Afghanistan to Vietnam, between the Oligocene and the Pliocene. The petrography...for the deposits of Jegdalek, Hunza and northern Vietnam. Whole rock analyses of non-ruby-bearing marbles...Azad-Kashmir, Tajikistan, Nepal, Myanmar, northern Vietnam and southern China (Hughes, 1997; Fig. 1). The |  | Giuliani, Gaston, Dubessy, Jean, Banks, David, Hoàng Quang, Vinh, Lhomme, Thérèse, Pironon, Jacques, Garnier, Virginie, Phan Trong, Trinh, Pham Van, Long, Ohnenstetter, Daniel, Schwarz, Dietmar (2003) CO2–H2S–COS–S8–AlO(OH)-bearing fluid inclusions in ruby from marble-hosted deposits in Luc Yen area, North Vietnam. Chemical Geology, 194 (1) 167-185 doi:10.1016/s0009-2541(02)00276-0 | Journal (article/letter/editorial) | | ruby from marble-hosted deposits in Luc Yen area, North Vietnam Gaston Giuliani a,*, Jean Dubessy b,1...CRPG/CNRS, UPR 2300, BP 20, 54501 Vandœuvre, France f Vietnam National Gem and Gold Corporation, 91 Dinh Tien...from marble-hosted deposits in the Luc Yen mining district, North Vietnam. Raman and Infrared spectroscopy...COS – S8 – AlO(OH) system; Evaporites; Marble; Vietnam 1. Introduction Marble-hosted deposits are the...(Mogok, Mong Hsu), North Vietnam (Luc Yen) and South China (Yunnan province). All the deposits are hosted |  | Giuliani, Gaston, Fallick, Anthony E., Boyce, Adrian J., Pardieu, Vincent, Pham, Van Long (2017) Pink and Red Spinels In Marble: Trace Elements, Oxygen Isotopes, and Sources. The Canadian Mineralogist, 55 (4) 743-761 doi:10.3749/canmin.1700009 | Journal (article/letter/editorial) | | Research and Identification of Vietnam, 91 Dinh Tien Hoang Hanoi, Vietnam ABSTRACT The oxygen isotopic...18.5% for spinels from An Phu and Cong Troi in Vietnam, and Namya from Myanmar; and (3) between 19.0 and...Pamreso in Kenya, Mogok in Myanmar, and An Phu in Vietnam. The variation in the d18O values for most of the...(A) General view of the spinel mine of Cong Troi, Luc Yen area, Vietnam. (B) Spinel (Sp) associated with...quarries, Vietnam. (C) Crystals of red spinel around 1 cm across in a marble from Luc Yen, Vietnam. (D) Pale |  | Sorokina, Elena S., Hofmeister, Wolfgang, Häger, Tobias, Mertz-Kraus, Regina, Buhre, Stephan, Saul, John M. (2016) Morphological and chemical evolution of corundum (ruby and sapphire): Crystal ontogeny reconstructed by EMPA, LA-ICP-MS, and Cr3+Raman mapping. American Mineralogist, 101 (12) 2716-2722 doi:10.2138/am-2016-5614 | Journal (article/letter/editorial) | | (Kenya, Tanzania, Madagascar) and Southeast Asia (Vietnam). Trace-element compositions indicative for different...concentrations of ≥1500 mg/g in samples from Luc Yen (Vietnam) and Mangari (Kenya), formed under lower P-T...crystal morphology, Kenya, Tanzania, Madagascar, Vietnam Introduction “…for a given body of certain form...Andranondambo in Madagascar) and Southeast Asia (Luc Yen in Vietnam). Rim-to-rim chemical analyses were combined...the John Saul ruby mine in the Mangari area of Kenya (nine samples), the Aqua ruby mine (formerly part of |  | Giuliani, Gaston, Groat, Lee, Fallick, Anthony, Pignatelli, Isabella, Pardieu, Vincent (2020) Ruby Deposits: A Review and Geological Classification. Minerals, 10 (7) 597 doi:10.3390/min10070597 | Journal (article/letter/editorial) | | unheated rubies from the recently discovered Didy mine in Madagascar also command high prices [19]. A set...Minéral; (C) rubies from the Montepuez mine, from the Montepuez mine, Mozambique. Vincent Pardieu © Gemmological...(9) Kitui; Mangare (Rockland-formerly John Saul mine; Penny Lane; Aqua, Hard Rock). Tanzania: (10) Umba...Umba (9) Mangare (Rockland-formerly John Saul mine; Penny Lane; Aqua, Hard Rock). Tanzania: (10) Umba...(Fiskenæsset district(25) Revelstoke. Greenland: (26) South of Nuuk region (Fiskenæsset district-Aappaluttoq); |  | Duong, Van-Hao, Trinh, Phan Trong, Nguyen, Thanh-Duong, Piestrzyski, Adam, Nguyen, Dinh Chau, Pieczonka, Jadwiga, Ngo, Xuan Dac, Tran Van, Phong, Thai Pham, Binh, Nguyen-Van, Huong, Ngo Van, Liem, Tien Bui, Dieu, Vu Khac, Dang, Bui, Chi Tien (2021) Cu-Au mineralization of the Sin Quyen deposit in north Vietnam: A product of Cenozoic left-lateral movement along the Red River shear zone. Ore Geology Reviews, 132. 104065pp. doi:10.1016/j.oregeorev.2021.104065 | Journal (article/letter/editorial) | | mineralization of the Sin Quyen deposit in north Vietnam: A product of Cenozoic left-lateral movement along...Hanoi, Viet Nam Institute of Geological Sciences, Vietnam Academy of Science and Technology, Hanoi, Viet...Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Viet...100000, Viet Nam g VNU University of Science, Vietnam National University, Hanoi, Viet Nam h GIS Group...parallel to the Red River fault system in North Vietnam. U-Pb dating of zircon and uraninite and 39Ar/40Ar |  | | Journal (issue) | | INSTITUTE OF AMERICA Russia's Lomonosov Diamond Mine Carbonado Diamond PL Mapping of Optical Defects...article of this issue examines Russia’s Lomonosov mine, which is located in a Proterozoic zone in the Baltic... 2 EDITORIAL 143 Visit Europe’s First Diamond Mine Duncan Pay FEATURE ARTICLES 144 Geology and Development...well as the geology of the Arkhangelsk kimberlite province. 168 Carbonado Diamond: A Review of Properties...diamond. 190 An Update on Tourmaline from Luc Yen, Vietnam Nguy Tuyet Nhung, Le Thi Thu Huong, Nguyen |  | | Journal (issue) | | Aquamarine with Spodumene Inclusions from the Oceanview Mine, California, USA | Demantoid/ Andradite Slices from...Chatoyancy from Vietnam | Faceted Proustite from Chañarcillo, Chile | Blue Spinel Mining in Vietnam Cover photo:...project Photo by Jeff Scovil 206 Excursions Luc Yen, Vietnam Gem-A Notices 214 Learning Opportunities...‘Home Gemmology’, ‘Jewellery Industry Voices’ and ‘Mine to Design’. • Gem-A (London) has produced a series...the Oceanview Mine, California, USA Since 2000, mining operations at the Oceanview mine in Pala, San Diego |  | Giuliani, Gaston, Dubessy, Jean, Ohnenstetter, Daniel, Banks, David, Branquet, Yannick, Feneyrol, Julien, Fallick, Anthony E., Martelat, Jean-Emmanuel (2018) The role of evaporites in the formation of gems during metamorphism of carbonate platforms: a review. Mineralium Deposita, 53 (1) 1-20 doi:10.1007/s00126-017-0738-4 | Journal (article/letter/editorial) | | phlogopite in a marble matrix, Minh Tien mine, Luc Yen mining district, Vietnam, 2 × 1 cm. e Nodule, rough and...cut of tsavorite from the Tsavolite mine, Mangare mining district, Voi region, Kenya, diametre of the...mines, Arusha district, Tanzania. h Blue zoisite, variety tanzanite, Merelani, Arusha district, Tanzania...graphitic gneiss and calc-silicates from Tanzania: m: biotite-kyanite gneiss; n: graphitic gneiss; o: tsavorite-bearing...tsavorite-bearing nodules in graphitic gneiss and calc-silicate rocks with anhydritegypsum veinlets or |  | | Journal (issue) | | FEATURE ARTICLES 2 Blue Spinel from the Luc Yen District of Vietnam Boris Chauviré, Benjamin Rondeau, Emmanuel...Emmanuel Fritsch, Phillipe Ressigeac, and Jean-Luc Devidal pg. 3 Offers geological context and gemological...increasingly popular vivid blue spinel from northeast Vietnam. 18 The Chinese Soul in Contemporary Jewelry...gemological characteristics of blue spinel from Luc Yen, Vietnam. The centerpiece of the 18k yellow gold ring...olivine in marble matrix was seen at a mine in the Luc Yen district. Photo by Vincent Pardieu/GIA. Composite |  | | Book | | New Zealand, China and many parts of SE Asia (Vietnam, Laos, Cambodia, Malaysia, Thailand, Indonesia...indicating ruby within outcrops, miners working at mine sites and locals selling gemstones at source. These...Accessory zircon in ruby-bearing garnet-orthopyroxene gneiss gave Jurassic to Cretaceous core values and a young...32.0 ± 0.03 Ma, while zircon in a biotite-garnet gneiss gave core ages up to ~985 Ma, with young rims giving...Gem Tract and Nama, Kachin State, Myanmar; Luc Yen, Vietnam; Jegdalek, Afghanistan; Morogoro, Tanzania |  | | Journal (issue) | | Heierman collection. Illinois- Kentucky Fluorspar District Symposium by the Friends of Mineralogy (Midwest...the closing of the Illinois-Kentucky fluorspar district that I organized at Indiana University Southeast...believed having a similar program in the fluorspar district would be ideal. However, the logistics behind...this year. In previous visits to the fluorspar district, I had made contact with Bill Frazer, the owner...(Azad Kashmir). Pakistan: Luc Yen. Quy Chau. northern Vietnam: Chumar-Ruyil district. 1epal; Jegdalek. Afghanistan: |  | | Journal (issue) | | Mahenge, Tanzania In Search of Cobalt Blue Spinel in Vietnam Spinel Inclusions – An Exercise in Aesthetics Spinel...Henning led a U.S. government delegation to tour its mine in southwest Greenland in May 2019. Left to right:...Ruby geologist Aaju Simonsen at Greenland Ruby’s mine in Aappaluttoq. Greenland Ruby is First Colored...way for Greenland Ruby to join. Greenland Ruby’s mine produces both ruby and pink sapphire. “We’re delighted...sapphire project in Australia is already a producing mine, we intend to more clearly delineate the deposit |  | | Journal (issue) | | from the Tan Huong–Truc Lau Area, Yen Bai Province, Northern Vietnam Nguyen Ngoc Khoi, Chakkaphan Sutthirat...Tuyet Nhung Although not as well known as the Luc Yen district, this area is an important source of ruby...Afghanistan • Ammonite from Madagascar • Aquamarine from Vietnam • Chalcedony from Peru • Afghan emerald mining...characteristics of r uby and sapphire from Yen Ba i Province, in nor thern V ietnam. There is an ar ticle...FROM THE TAN HUONG–TRUC LAU AREA, YEN BAI PROVINCE, NORTHERN VIETNAM Nguyen Ngoc Khoi, Chakkaphan Sutthirat |  | | Journal (issue) | | Tourmaline The New Rising Star Mining in Luc Yen, Vietnam Tsavorite, Five Decades Later Human Elements...Between Rice Paddies and Karst Pinnacles – The Luc Yen Gemstone Mining Area Tsavorite... 50 Years Later...offering courses in gem trading and educational mine tours that are open to everyone. Consumers are becoming...which includes two washplants, security set-up, mine camps and other related infrastructure. The company...and successfully building the world’s largest ruby mine in Mozambique. Dev Shetty, Fura’s president and |  | | Journal (issue) | | Cordillera in the Guavio-Macanal formation (Muzo mine and Cosquez mine). Banks et al. (2000) discovered that although...Sub-Saharan Africa, the emeralds of the Chantete mine have also been shown to have resulted from the magmatic...The Chantete mine is located in the Ndola Rural Protected Area of the Lufwanyama district in the Copperbelt...Copperbelt Province of Zambia. The Ndola region consists of a complex series of pegmatite dykes that penetrate...discordantly through the basement supergroup (granitic gneiss and migmatite) and Muva supergroup (Coakley, 2001; |  | | Journal (article/letter/editorial) | | reactions between Si-Al-rich rock (syenogranite or gneiss) and marble. The metasedimentary corundum, spinel...(‘iolite’) were found (Walker, 1915; presumably in gneiss but the exact location is not known, Wilson, 2014)...although the exact origin of the Soper River mica mine and Waddell Bay occurrences could not be assessed...formed from the bimetasomatic reaction of contiguous gneiss and marble (Belley and Groat 2019). In metasedimentary...marble (e.g., syenogranite-marble on Spinel Island, gneiss-marble at the Glencoe Contact occurrence). In each |  | | Journal (issue) | | Synthetic Emeralds A New Source of Danburite from Vietnam A Chart of Emerald Inclusions Winter 2016 VOLUME...393 A New Find of Danburite in the Luc Yen Mining Area, Vietnam Le Thi-Thu Huong, Laura M. Otter, Tobias...promising find of gem-quality danburite from Yen Bai Province, Vietnam. Our fourth article returns to the emerald...stone picture. Gemfields’ auctions from its Kagem mine have had a profound effect on the city’s emerald...demand 332 GEMS & GEMOLOGY n the colored gemstone mine-to-market journey, there are major trading centers |  | | Journal (issue) | | Ethiopia|Tourmaline from Mwajanga and Simanjiro District, Tanzania|Alluvial diamond mining in South Africa|...Fluid Inclusions in Yellow Danburite from Luc Yen, Vietnam By Le Thi-Thu Huong, Kurt Krenn and Christoph...gemological study of blue sapphires from the Baw Mar mine (Mogok, Myanmar)’ was posted by the Gemological...apphires-baw-mar-minemogok-myanmar. The Baw Mar mine has recently produced a significant amount of fine...blue colour of stones from the northern part of the mine is medium to dark, while material from the southern |
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