 | | Book | | GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published by Struik...resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties 21 A to...through Tanzania, Kenya, Ethiopia and into the Sudan - has blessed East Africa, Kenya and Tanzania, with...starting in what was then Tanganyika ( now mainland Tanzania) and then progressing to Kenya - I am proud to...countries are among the finest in the world. The region and its gems are particularly dear to my family |  | | Journal (article/letter/editorial) | | the Stannite Group from the Gem Mines near Merelani, Tanzania Luca Bindi 1 1 2 * and John A. Jaszczak...gem mines near Merelani, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania. Associated minerals...stannite group; gallium; sulfide; Merelani tanzanite deposit; Tanzania Minerals 2020, 10, 467; doi:10...the region, the gem mines near Merelani, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania...samples the Merelani mines and from the Animas-Chocaya Mine complex, Quechisla district, Bolivia, was |  | | Catalog/List | | Ammoniotinsleyite xls Punta de Lobos, 90 km south of Iquique, I Region, Tarapaca / Chile; Pinkish crystals of up to 1...(xls) Arakawa, Minamiboso City, Chiba Pref., Kanto Region, Honshu Island / Japan / TYP; The extremely rare...Mwajanga Pegmatite, Mererani, Simanjiro District, Manyara Region / Tanzania; The rare and new mineral of...(xls) Tsumeb Mine, Tsumeb, Otavi Mts., Otjikoto Region / Namibia; Ore-microscopic and via REM-EDX visible...to 30 ”m in size, in yellow-metallic Pyrite-Chalcopyrite matrix. Sliced and examineded samples of 2 cm |  | | Catalog/List | | Pink Fluorite on Muscovite, Chumar Bakhoor, Nagar District, Gilgit-Baltistan, Pakistan 9 cm tall x 7 cm wide...primarily sourced from the ancient mines of the Ural Mountains. Today, the very finest come from China and the...Tanzanite has only been found in one place on earthâTanzania. It is a rare and coveted gemstone. Tanzanite...Tanzanite, Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania 12 cm tall...rarity. Tourmaline in Pollucite, Paprok, Kamdesh District, Nuristan, Afghanistan 16.5 cm tall x 14 cm wide |  | Giuliani, G., Ohnenstetter, D., Palhol, F., Feneyrol, J., Boutroy, E., De Boissezon, H., Lhomme, T. (2008) KARELIANITE AND VANADIAN PHLOGOPITE FROM THE MERELANI HILLS GEM ZOISITE DEPOSITS, TANZANIA. The Canadian Mineralogist, 46 (5) 1183-1194 doi:10.3749/canmin.46.5.1183 | Journal (article/letter/editorial) | | VANADIAN PHLOGOPITE FROM THE MERELANI HILLS GEM ZOISITE DEPOSITS, TANZANIA Gaston GIULIANI§ IRD (Institut...Abstract The Merelani deposits of gem-quality vanadian zoisite (âtanzaniteâ) in Tanzania occur in Proterozoic...phlogopite, tanzanite, graphitic gneiss, Merelani, Mozambique Belt, Tanzania. Sommaire Les gisements de gemmes...gemmes de zoĂŻsite vanadifĂšre (âtanzaniteâ) de Merelani, en Tanzanie, sont contenus dans des sĂ©ries protĂ©rozoĂŻques...phlogopite vanadifĂšre, tanzanite, gneiss graphiteux, Merelani, ceinture Mozambicaine, Tanzanie. § E-mail addresses: |  | | Journal (issue) | | (5) Chrysoberyl, 2.3 cm, from Takovaya, Ural Mountains, Russia. (6) Chalcocite, 2.5 cm, from Cornwall...Miask, Ural Mountains, Russia. (8) Pyrargyrite, 1.8 cm, from St. Andreasberg, Harz Mountains, Germany....Dyscrasite twin, 1.9 cm, from St. Andreasberg, Harz Mountains, Germany. (3) Glaucodot twin, 2.5 cm, from HĂ„kansboda...Harz Mountains, Germany. (5) Elbaite, 2.5 cm, from Sarapulka, 12 km from Mursinka, Ural Mountains, Russia...Aquamarine beryl, 2.4 cm, from Slieve Corra, Mourne Mountains, County Down, Ireland. Gem-crystal thumbnails |  | Pring, Allan, Wade, Benjamin, McFadden, Aoife, Lenehan, Claire E., Cook, Nigel J. (2020) Coupled Substitutions of Minor and Trace Elements in Co-Existing Sphalerite and Wurtzite. Minerals, 10 (2) 147 doi:10.3390/min10020147 | Journal (article/letter/editorial) | | sphalerite component, while the sample from Merelani Hills, Tanzania, is Mn-rich with mean Mn levels in wurztite-4H...within the two coexisting polytypes. In the Merelani Hills sample the Cu+ + Ga3+ = 2Zn2+ substitution...of Cu and Ga to above 2000 ppm in the sphalerite region. The 2Ag+ + Sn4+ = 3Zn2+ coupled substitution does...sphalerite; trace element substitution; Animas; Merelani Hills 1. Introduction Sphalerite, the cubic close...from the Animas-Chocaya Mine complex, Quechisla district, Bolivia (SAM G33739; henceforth denoted âAnimasâ) |  | | Book (volume) | | Morganite) (Red Beryl) Harris Claim, Wah Wah Mountains, Utah, 4 Bournonite (on Quartz) Yaoganxian Mine...Wisconsin, 7 (Chalcopyrite & Djurleite) Tongshan Mine, Daye, Hubei Prov., China, 13 Chalcopyrite (on Quartz)... Bahia, Brazil, 22 Cavradi Gorge, St. Gotthard Region, Graubunden, Switzerland, 49 Hyalophane Zagradski...Shattuckite), Omaue Mine, Kaokoveld Plateau, Kunene region, Namibia, 17 Mimetite Congreso-Leon Mine, San Pedro...Prov., Atacama Region, Chile, 28 Pyrargyrite Samson Mine, St. Andreasberg, Harz Mountains, Lower Saxony |  | | Show/Event (guide) | | Tucson, AZ 85705 in the center of the Mineral District. The mineralogy section of the mim today hosts...zoisite). Merelani mines, Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania...VĂ€yrynenite. Lolu Dahku mine, Roundu Valley, Skardu District, Gilgit-Baltistan, Pakistan. 14.5 x 3 x 2 cm,...Stibiotantalite. Urandu mine, Shigar Valley, Shigar District, Gilgit-Baltistan (Northern Areas), Pakistan,...photo Calcite twin, Guangxi Zhuang Autonomous Region, China. 10.5 x 7.5 x 7 cm, mim specimen #1151: |  | Feneyrol, J., Ohnenstetter, D., Giuliani, G., Fallick, A. E., Rollion-Bard, C., Robert, J.-L., Malisa, E. P. (2012) EVIDENCE OF EVAPORITES IN THE GENESIS OF THE VANADIAN GROSSULAR 'TSAVORITE' DEPOSIT IN NAMALULU, TANZANIA. The Canadian Mineralogist, 50 (3) 745-769 doi:10.3749/canmin.50.3.745 | Journal (article/letter/editorial) | | VANADIAN GROSSULAR âTSAVORITEâ DEPOSIT IN NAMALULU, TANZANIA Julien FENEYROL and Daniel OHNENSTETTER§ UniversitĂ©...Dar-es-Salaam, P.O. Box 35052, Dar-es-Salaam, Tanzania Abstract The Namalulu tsavorite (vanadian grossular...up to 0.80 wt.% V2O3) deposit in northeastern Tanzania occurs in metasomatized graphitic gneiss overlain...kbar and 630 ± 30 °C. Keywords: Mozambique Belt, Tanzania, Namalulu, tsavorite, vanadian mineralization...Suwa et al. 1996), northeastern and southeastern Tanzania (Bridges 1974, Malisa 1987, Malisa & Muhongo 1990 |  | | Journal (article/letter/editorial) | | a new mineral from the Tintic District, Utah, and the Masonic District, California, USA. Canadian Mineralogist...mines: Carisa, Boss Tweed, or Red Rose), Tintic district, Juab Co., Utah, U.S.A. It was later also discovered...the town of Bodie in the Bodie Hills volcanic field, Masonic district, Mono Co., California, U.S.A. The...for its type locality. The mines of the Tintic district exploited polymetallic (Au-Ag-Cu-Pb) vein deposits...3 groups). All spectra were featureless in the region from 4000 to 1200 indicating no evidence of OHâ |  | | Catalog/List | | 10:00 AM â 5:00 PM CT Heritage Auctions Design District Annex 1518 Slocum Street âą Dallas, TX 75207 Session...5:00 PM ET LOT VIEWING Heritage Auctions Design District Annex 1518 Slocum Street âą Dallas, TX 75207 Thursday...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...750 73003 TOURMALINE Momeik Township, Kyaukme District, Shan State, Myanmar (Burma) As if Momeik doesnât |  | | Journal (issue) | | on a mountain-climbing vacation in the remote mountains of Patagonia, the authors stumbled upon a remarkable...South American region known as Patagonia, a barren tableland between the Andes Mountains and the Atlantic...called âthe Pampasââa very rugged and windswept region which nevertheless is home to various flora and...condor, seen mainly amidst the craggy peaks of the mountains. The condor, with a body length of over a meter...in 1985 in order to maintain possession of the region and its tourism income. In the summer months the |  | | Journal (article/letter/editorial) | | elements as uranium, vanadium, and mercury in a region ruled by Precambrian copper and iron deposits....locality with similar mercury minerals. The Terlingua district is famous for its rare mercury minerals, for nine...geological uniqueness among the famous copper district to the north and powerhouse iron districts to...3015 0.0321 85.48 11.41 0 0.6816 â 97.91 with chalcopyrite, hematite, and sericMinimum detection limits...secthat snake across quartz and around crystals of chalcopyrite. tion of the material exhibited complete opacity |  | | Journal (article/letter/editorial) | | malachite, linarite, dundasite, allophane, chalcopyrite, barite, and aurichalcite: eighteen species...University. Images of minerals from the Merelani Hills of northern Tanzania, including the one shown of merelaniite |  | | Journal (article/letter/editorial) | | Siderite Siete Suyos Mine, Atocha-Quechisla District Sud Chichas Province, PotosĂ Department, Bolivia...siderite from Siete Suyos mine, Atocha-Quechisla district, Sud Chichas Province, PotosĂ Department, Bolivia...found as iridescent microcrystals; the Duquesne district, Santa Cruz County, as curved rhombohedra; and...sphalerite and pyrite. The White Raven mine, Ward district, Boulder County, has produced some of the Figure...from the San Antonio mine, in the Santa Eulalia district, Aquiles SerdĂĄn, Chihuahua State. The crystals |  | | Book (volume) | | Prehnite) Goboboseb Mts., Brandberg Area, Erongo Region, Namibia, 67 Apatite (on Cookeite) Pulsifer Quarry...Tiger, Mammoth Dist., Pinal Co., Arizona, 21 Chalcopyrite (with Lillianite-Gustavite, Quartz & Pyrite)...Diopside (with Pyrite) Karo Mine, Merelani Hills, Arusha Region, Tanzania, 35 Djurleite Tazalarht mining...Hematite (on Quartz) Cavradi Gorge, St. Gotthard Region, Graubunden, Switzerland, 64 Inesite (on Calcite...Switzerland, 53 Tanzanite (with Quartz) Merelani Hills, Arusha Region, Tanzania, 52 Topaz (with Smoky Quartz) Dassu |  | | Catalog/List | | Design District Showroom 1518 Slocum Street âą Dallas, TX 75207 Heritage Auctions Design District Showroom...Board Hayley Brigham Managing Director Beverly Hills Greg Rohan President Alissa Ford Managing Director...cushion shaped âRed Emeraldâ from the Wah Wah Mountains in Utah which happens to the be the only known...72013 Gemstone: Demantoid Garnet - 1.12 Cts. Ural Mountains, Russia At just over a carat, this gemstone is...- 11.91 Ct. Tubussis Farm 22, Karibib District, Erongo Region, Namibia Andradite Garnet is present in |  | | Journal (issue) | | money. lnspired by promotional brochures touting "mountains fĂŒll of rich gold and silver ores, sulphurets...scalenohedral calcite crystals. The Terlingua mercury district, with a few smaller, adjacent districts in Texas...cutting coarse-grained reddish granites of the hilly region thereabouts, known geologically as the Llano Uplift... 15 cm, from the Wagholi quarry complex, Pune District, Maharashtra, India. Don and Laura Aaron photo...Liubao, Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China. Don and Laura Aaron photo. Drusy quartz |  | | Journal (issue) | | element-copper-nickel deposit, located in the Sudbury region, that is currently being considered for mine development...Journal presentations: MINERALIEN-Welt The Mogok region in Myanmar has been one of the world's most famous...for that fact Sperrylite crystal 4 mm high in chalcopyrite matrix, from the new find in the Broken Hammer...collision was the formation of the Himalaya chain of mountains. The MMB is a huge elongated structure stretching...rocks Map of North America outlining the Sudbury region. Map insert shows simplified geology of the Sudbury |  | | Journal (issue) | | collecting has flourished throughout the Northwest region in recent decades; a history of the mineral discoveries...the estate. Many early minerals collected in the region about Spokane, Washington, are represented in the...âa new mineral storeâ in the central business district of Spokane, Washington, at W. 410 Riverside Avenue...and associated minerals from the Michigan copper district. This is an old time collection,â he said, âcollected...heulandite, stilbite, medfordite, gold, cinnabar, chalcopyrite, amethyst and others, and 10 specimens for $2 |  | | Journal (article/letter/editorial) | | underground in 1903 on the Veta Madre, Guanajuato district, Guanajuato. Philadelpia Museum photo. veins...(Kessler 1977). Fluorites from throughout this region are readily recognized by abundant petroleum inclusions...the fluorite deposits of the Illinois fluorite district (Heyl 1982; Goldstein 1997; Lillie and Goldstein...Hicks Dome, which hosts the Illinois fluorite district (Heyl 1982), so the differences may be less than...with associated fluorite. The eastern part of this region was the worldâs principal producer of celestine |  | | Journal (article/letter/editorial) | | niigataite for the type locality, in the Itoigawa-Ohmi district, Niigata Prefecture, in central Japan (Miyajima...in a sample of pumpellyite rock from the Wakasa district, Tottori Prefecture, Japan. The host rock consisted...Tashelga River, Gornaya Shoria, in the Kemerovo district of southwest Siberia, Russia (Shepelâ and Karpenko...Island, Quebec, Canada; the Kyshtymsk district, Ural Mountains, Russia; and at Bastnaes and at the Ostanmossa...Ontario, Canada; several localities in the Eifel Mountains, Rhineland-Palati- nate, Germany; Wilmot Pass |  | | Journal (issue) | | Budd photo. Tanzanite zoisite, 6 cm, Merelani Hills, Arusha, Tanzania. Ex Steve SmaJe collection. Joe Budd...12 cm, Daoping mine, Guangxi Zhuang Autonomous Region, China. Joe Budd photo. 10 Supplement to The...photo. Mesolite with apophyllite, 14 cm, Pune district, Maharashtra, India. Joe Budd photo. Apophyllite...Apophyllite on stilbite, 9.5 cm, Jalgaon district, Maharashtra, lndia. Joe Budd photo. Arsenopyrite with quartz... Xionghuang Kuang mine, Wuyu district, Guangxi Zhuang Autonomous Region, China. Ex Steve Smale collection |  | | Catalog/List | | 214-528-3500 877-HERITAGE (437-4824) HA.com BEVERLY HILLS PALM BEACH Ed Beardsley Cristiano Bierrenbach...President and Managing Director Dallas/Beverly Hills Executive Vice President International Steve Ivy...crystal in matrix from the only locality of Merelani Hills, Tanzania Please visit www.HA.com/8068 to view...72002 Gold Nugget Ganes Creek Mine, Innoko Mining District Yukon-Koyukuk Census Area Alaska, USA The dimensionality... 72004 Gold Nugget Ganes Creek Mine, Innoko Mining District Yukon-Koyukuk Census Area Alaska, USA This simplistic |
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