 | | Journal (issue) | | Wilson The Minh Tien tourmaline mine, Luc Yen Mining District, Yenbai Province, Vietnam . . . . . ....Tourmaline from the Minh Tien pegmatite, Luc Yen Mining District, Yenbai Province, Vietnam . . . . . . . ...COVER: ELBAITE on Quartz, 12 cm, from the Minh Tien pegmatite, Yenbai Province, Vietnam. Frédéric Escaut...(Bunny later coauthored, with Richard W. Holmes, Mine and Mineral o he rea merican Ri .) Curtis had first...the desert about 10 miles from the famous Tiger mine, where he left a suicide note with his abandoned |  | | Journal (issue) | | deposit of An Phu, Luc Yen Mining District, Yenbai Province, Vietnam . . . . . . . . . . . . . 225 by...crystal cluster on matrix, 6 cm tall, from the Tsumeb mine, Tsumeb, Namibia. Sandor Fuss collection (2004)...discovered on the 12th level of the Cresson mine, Cripple Creek district, Colorado in 1914 (see “The Cresson...Mineralogical Record, volume 37, May–June, 2006 Cresson mine manager Dick Roelofs showing the Cresson Vug to...school; he did his Master’s work at the Rueppele iron mine in Stanton, Missouri. He spent the years 1931–1932 |  | | Journal (issue) | | Aquamarine and Yellow Beryl Pyrope from Vietnam Multicoloured Quartz from Brazil A 42.54 ct Historical Alexandrite...Pyrope from Southeast Vietnam 773 By Le Ngoc Nang, Pham Trung Hieu and Pham Minh Tien Characteristics of...Colour Zones and Inclusions in Unusual Multicoloured Quartz from Brazil 784 By Huizhen Huang, Quanli Chen...Hoa, Vietnam | Traceability and Sustainability of Precious Coral in Japan | Dyed Chatoyant Quartz Misrepresented...Green orthoclase from granitic pegmatites in Minh Tien, Vietnam, very rarely shows chatoyancy or weak asterism |  | | 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...223 233 Update on Gemstone Mining in Luc Yen, Vietnam Pham Van Long, Vincent Pardieu, and Gaston Giuliani...Sierra Leone • Scheelite and hübnerite inclusions in quartz from China • Faceted wurtzite from Tanzania • Composite...Myanmar; an update on gemstone mining in Luc Yen, Vietnam; and the characteristics of coated jadeite jade |  | | Journal (issue) | | important assignment at the Shinkolobwe uranium mine. His supervisor was Johannes Vaes (1902–1978). Gilbert...with his fabulous cuprites from the Mashamba West mine, Gilbert only hinted to a few people of his treasures...species have also been recovered, including fluorite, quartz, goethite pseudomorphs after siderite, and other...Erongo Mountains, together with aesthetic fluorite, quartz, goethite pseudomorphs after siderite, and other...kilometers in diameter, located in Damaraland, Erongo Province, Namibia, approximately 20 km north of Usakos |  | | Catalog/List | | 10:00 AM – 5:00 PM CT Heritage Auctions Design District Annex 1518 Slocum Street • Dallas, TX 75207 Session...5:00 PM ET LOT VIEWING Heritage Auctions Design District Annex 1518 Slocum Street • Dallas, TX 75207 Thursday...‘normal’ habit, often in conjunction with euhedral Quartz crystals. The potential for new discoveries and...grow. 73001 TOURMALINE Momeik Township, Kyaukme District, Shan State, Myanmar (Burma) Looking almost like...com/6150 73002 TOURMALINE Momeik Township, Kyaukme District, Shan State, Myanmar (Burma) For those that have |  | | 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:...Photo by Jeff Scovil 206 Excursions Luc Yen, Vietnam Gem-A Notices 214 Learning Opportunities 216...‘Home Gemmology’, ‘Jewellery Industry Voices’ and ‘Mine to Design’. • Gem-A (London) has produced a series...Among the numerous optical phenomena displayed by quartz are asterism and chatoyancy. However, amethyst |  | | Journal (issue) | | King County, Washington (for quartz and pyrite) and the Rock Candy mine in British Columbia (for fluorite...journalism, but those plans were interrupted by the Vietnam War. After four years in the Navy, he saw the light...locations, including the Little Gem amethyst scepter mine in Montana, the Fluorita Dulcita prospect in Arizona...Lode, the California Mother Lode and the Homestake mine. Every known type of miner’s candlestick is illustrated...Rhodochrosite on Manganite N'Chwaning Mine, Northern Cape Province, South Africa. 8.7 cm In 1978 a historic |  | | Journal (issue) | | mines, Kalahari Manganese Field, Northern Cape Province, South Africa ..................................crystals on matrix, 17.2 cm, from the N’Chwaning I mine, collected in 1978. Private collection and photographer...FineMineral.com APATITE Nagar, Hunza Valley, Gilgit District, Northern Areas, Pakistan, 11.5cm. Fine Minerals...Show and Riverpark Inn Rhodochrosite, Sweet Home Mine, USA, 10 cm Photo: Malte Sickinger MARCUS BUDIL...budil-minerals.com Chrysocolla on Malachite Mashamba West Mine Democratic Republic of Congo 26 cm - Joe Budd Photo |  | | Journal (issue) | | Chinese Synthetic Diamonds Trapiche Rubies from Vietnam Renaissance Recipes for Artificial Pearls Volume...Labradorite-Bytownite from Ethiopia | Quartz from Brazil with Gormanite Inclusions | Quartz from Chile with Powellite...Powellite and Molybdenite Inclusions | Quartz from Madagascar with Fuchsite Phantom Inclusions | Tourmaline...Ruby from Khoan Thong, Luc Yen Mining District, Northern Vietnam 726 By Isabella Pignatelli, Gaston...alexandrite, iolite, garnet, euclase, tourmaline and quartz-family varieties such as amethyst (Ncube 1988) |  | | Book | | Litchfield County, where good crystals were taken from quartz veins in a variety of metamorphic, plutonic and...Litchfield, where a mass of white quartz on a ridge had once been mined for quartz, and large ilmenite masses...ilmenite crystals to 7 .5 cm in matrix of massive quartz from these dumps-adding that, in his judgment,...MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's |  | | Show/Event (guide) | | zone assemblage from the Allah Cooper/Valcooper mine, Louisa County, Virginia. L. E. Kearns & M. D. Dunn...collecting. With a vast array of abandoned underground mine openings available, searching for specimens became...fit in? The mine openings were short lived. The State was slowing capping all known open mine shafts and...where her father was an electrician in a uranium mine. Encouraged by cold and desolate winters, the family...of wulfenite with mimetite from the San Francisco mine that couldn't possibly be natural, but was, and |  | | Journal (issue) | | Aquamarine from the Thuong Xuan District, Thanh Hoa Province, Vietnam Le Thi-Thu Huong, Wolfgang Hofmeister...Blue quartz colored by trolleite and lazulite inclusions • Spectral interference in Indian quartz • Indian...Indian scapolite • Spinel from northern Vietnam • Gem zektzerite • “Coral Sea” agate • Dendritic agate...• Non-nacreous pearl imitation • Plastic-coated quartz, imitating emerald • Lead glass–filled trapiche...& GEMOLOGY SPRING 2011 3 NOSY BE 4 km 0 N MINE AREA Ambato MADAGASCAR LLIN S TA C RY TA R Y |  | | Journal (issue) | | Challenge 62 G&G Micro-World Blue apatite in smoky quartz • Oiled apatite • Acicular troughs associated...Sichuan Province • Unusual repair of an emerald • Yellowish green enstatite • Star topaz from Vietnam • Davemaoite...Karl Schmetzer traces the history of the Habachtal mine during the era between World Wars I and II, using...workings were called the Königskrone (“Kings Crown”) mine. The finest topaz crystals were extracted during...~ ~ ~ ~ ~ v v v v v v v v v v v v v Topazized quartz porphyry v v v v v v Lamprophyre Greisen breccia |  | | Journal (issue) | | Synthetic Emeralds A New Source of Danburite from Vietnam A Chart of Emerald Inclusions Winter 2016 VOLUME...Find of Danburite in the Luc Yen Mining Area, Vietnam Le Thi-Thu Huong, Laura M. Otter, Tobias Häger...simulated matrix pg. 418 422 G&G Micro-World Quartz windows in chalcedony • Sphalerite inclusions in...blue sapphire • Designer inclusion in synthetic quartz • Quarterly crystal: Growth features on titanite...find of gem-quality danburite from Yen Bai Province, Vietnam. Our fourth article returns to the emerald |  | | Journal (issue) | | moving products from mine to consumer. The main cover image was taken at the AnahÌ mine in Bolivia, a major...instrumentation such as LA-ICPMS—once primarily the province of academia—became a fixture in many gemological...were combined under the jurisdiction of the U.S. District Court of New Jersey 168 PRODUCTION AND MARKETS...of the company (Even-Zohar, 2007). Because of the mine closures, De Beers’s market share by volume fell...pink diamonds (0.51 and 0.55 ct) from the Argyle mine in Australia were part of the 2007 Argyle pink diamonds |  | | Journal (issue) | | 90 Play-of-Color Opal from Wegel Tena, Wollo Province, Ethiopia Benjamin Rondeau, Emmanuel Fritsch,...Update on ruby, sapphire, and spinel mining in Vietnam • Sphene from northern Pakistan • Spinel from Bawma...the proximity to San Diego’s historic pegmatite district, we will offer field trips to working gem mines...purchased the diamond in India, possibly at the Kollur mine, but its exact source is not known. Louis XIV had...exact source in India is unknown, though the Kollur mine has been mentioned (e.g., Balfour, 2009). The stone |  | | Journal (issue) | | rush, and the early 1900’s saw several attempts to mine the property commercially. From 1952 to 1971 the...the property, and attempts during the 1990’s to mine the land (to my knowledge, this latter information...Record, volume 37, November–December, 2006 511 QUARTZ, 5.5 cm, Dalnegorsk, Russia. Jeff Scovil photo...of the mineral world, yielding faden crystals of quartz, fluorapatite, clinozoisite, orthoclase, titanite...terms of visible snow depths and used the peridot mine location as a reference, easily identifiable by |  | | Journal (issue) | | Fluorescence | New Finds at the Tourmaline King Mine, Pala, California, USA | A New Amber Imitation:...Eckermannite revised: The new holotype from the jade mine tract, Myanmar—Crystal structure, mineral data,...2010. Play-ofcolor opal from Wegel Tena, Wollo Province, Ethiopia. Gems & Gemology, 46(2), 90–105, https://doi...Belley, P. & Palke, A. 2021. Purple gem spinel from Vietnam and Afghanistan: Comparison of trace element chemistry...Finds at the Tourmaline King Mine, Pala, California, USA The Pala District in San Diego County, California |  | | Journal (issue) | | Number Three Articles The Lonavala Quarry, Pune District, Maharashtra, India . . . . . . . . . . . . .... on calcite, from the El Oriente tunnel, Chivor mine, Boyaca, Colombia. William Larson collection; Van...his two brothers on a remote farm in the Mallee district of western Victoria, Australia. His tertiary education...Ghat (about 15 km east of Karad, in the Satara District). The presence of pentagonite in India was not...volume. Commonly the geodes contain heulandite and quartz, and rarely also mordenite, stilbite and calcite |  | | Journal (issue) | | in Moldavite from ‘Mercedes-Star’ Chlum, Czech Quartz Republic Cause of Colour and Dichroism in Laurentthomasite...Brazil | Emerald and Green Beryl from Shaanxi Province, China | Unusual Colour-zoned Emerald | ‘Star...Asterism in ‘Mercedes-Star’ Moldavite from Chlum, Czec Quartz h Republic / No. 7 / 2023 Cause of Colour in...Enigma of the Unusual Asterism in ‘Mercedes-Star’ Quartz 678 By Jean-Pierre Gauthier, Emmanuel Fritsch...carbon footprint of each individual diamond’ from its mine origin to the polished gem. The data can 642 THE |
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Minh Tien Mine, Lục Yên District, Yên Bái Province, Vietnam