 | | 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 |  | | Catalog/List | | SignatureÂŽ Internet Session 2 Heritage Auctions Design District Annex 1518 Slocum Street ⢠Dallas, TX 75207 (HERITAGELive...Cerussites and Cuprites, Sapphires and Spinels, Tourmaline and Tanzanite, Emeralds and Jeremejevites, the...the Tsumeb Mine (as well as other mines of the region) were still in production in the 1970s. You will...village near the foothills of the Drakensberg Mountains, in South Africa. His love of rock climbing soon...an exciting trip by Land Rover into the Maluti Mountains of Lesotho (formerly Basutoland) to visit the |  | | Journal (article/letter/editorial) | | Zoisite BRUCE CAIRNCROSS Merelani Hills, Simanjiro District Manyara Region, Tanzania Department of Geology...South Africa brucec@uj.ac.za Figure 1. Map of Tanzania, prepared by William Besse. Tanzanite is mined...desirable is undoubtedly the variety tanzanite, from Tanzania (fig. 1). Mindat.org lists more than one thousand...Figure 3. General view of artisanal workings at Merelani Hills. Some small mine headframes are visible in...zoisite (not tanzanite) from Tanzania was not from the now-famous Merelani Hills deposit (fig. 3), but from |  | | Book | | gemological wealth of East Africa. This unique region encompasses ¡what may be the world's richest gem...gemologist and geologist, Dr. Peter Keller. Kenya and Tanzania are revealed in their full mineralogical splendor...pink diamonds. Emerald, alexandrite, garnet, and tourmaline are all significantly present. New discoveries...unusual garnet and chrome tourmaline are widely identified with the region. ( continuedon backflap)...73-carat tsavorite garnet, and a 22.69-carat chrome tourmaline. Courtesy of the 'Irelawney Collection of the |  | | Catalog/List | | Minerals 5 AT L A S Mibladen, MOR Manyara, TZ Merelani Hills Tsumeb, NA Anjanbonoina, MG This catalog...east African nation of Tanzania, which we find the uncommon form of tourmaline, liddi- often evokes...rarer gem species And north, in the Drâa-Tafilalet Region of Morocco, tsavorite. Traveling west to the storied... Calcite on Dioptase Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia 13 cm tall x 14 cm wide Africa The mine... Drâa-Tafilalet Region, Morocco 12.7 cm tall x 14 cm wide The Drâa-Tafilalet Region of Morocco, best |  | | 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...Mererani, Simanjiro District, Manyara Region / Tanzania; The rare and new mineral of the tourmaline group...blue up to 5 mm large end caps on 3 cm large tourmaline crystals. These are mixed crystals from Dravite...(KS) to 4 cm (NS). A quite rare appearance for Tourmaline crystals, old finds from the 1970s; KS 28,00; |  | | 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...9 cm wide 29 TOURMALINE ON POLLUCITE A rare pairing of species. Few tourmaline with pollucite examples |  | 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 vanadifère (âtanzaniteâ) de Merelani, en Tanzanie, sont contenus dans des sĂŠries protĂŠrozoĂŻques...phlogopite vanadifère, tanzanite, gneiss graphiteux, Merelani, ceinture Mozambicaine, Tanzanie. § E-mail addresses: |  | | Journal (issue) | | You, Donors FEATURE ARTICLE 80 Gem Wealth of Tanzania Dona M. Dirlam, Elise B. Misiorowski, Rosemary...ABOUT THE COVER: Over the last three decades, Tanzania-the subject of the lead article in this issue-has...of gem-quaLity diamonds, rubies, and sapphires, Tanzania is perhaps best known for its production of the...of zoisite, tanzunite, which occurs in the Merelani Hills. The superb transparent tanzanite crystal shown...nation of Tanzania has great gem wealth. First known by Westerners for its diamonds, Tanzania emerged in |  | | 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....â 3 cm, from St. Gotthard, Switzerland. (11) Tourmaline, 2.6 cm, from Elba, Italy. Refined Elegance...Dyscrasite twin, 1.9 cm, from St. Andreasberg, Harz Mountains, Germany. (3) Glaucodot twin, 2.5 cm, from HĂĽkansboda...Harz Mountains, Germany. (5) Elbaite, 2.5 cm, from Sarapulka, 12 km from Mursinka, Ural Mountains, Russia |  | | Journal (article/letter/editorial) | | for all budgets. Collector specimens, opals, tourmaline, beads, and more! www.minersgemsandminerals.com...discovery at a real gem mine in the world-famous Pala district of southern California. www.digforgems.com digforgems@gmail... â˘âKermesite, Globe and Phoenix Mine, Kwekwe District, Zimbabwe âby Bruce Cairncross â˘âColorado Artist...Wight â˘âTanzanite, Merelani Hills, Simanjiro District, Manyara Region, Tanzania âby Bruce Cairncross |  | | Report (issue) | | Green Fluorite mine, Manaoshan Mountain, Suxian district, Chenzhou Prefecture, Hunan Province. And I will...Green Fluorite mine, Manaoshan Mountain, Suxian district, Chenzhou Prefecture, Hunan, China. The Arkenstone...partially gemmy, deep green specimens of âchrome tourmalineâ from Voi, near Tsavo National Park in Kenya...yet to assign a specific tourmaline-species identity to his âchrome tourmalineââmaybe the right designation...done on these lovely green crystals? âChrome Tourmaline,â 3.9 cm, from Voi, near Tsavo National Park |  | | Book (volume) | | beautiful, like an Illinois Fluorite or a colorful Tourmaline. And, those that are beautiful to the advanced...Morganite) (Red Beryl) Harris Claim, Wah Wah Mountains, Utah, 4 Bournonite (on Quartz) Yaoganxian Mine... Bahia, Brazil, 22 Cavradi Gorge, St. Gotthard Region, Graubunden, Switzerland, 49 Hyalophane Zagradski...Bosnia-Herzegovina, 24 Hydroxylherderite (with Tourmaline) Xanda Mine, Virgem Da Lapa, Minas Gerais, Brazil...Shattuckite), Omaue Mine, Kaokoveld Plateau, Kunene region, Namibia, 17 Mimetite Congreso-Leon Mine, San Pedro |  | | Show/Event (guide) | | same effect as a more classical slab of bicolor tourmaline from Brazil, acquired in 2022. Actually, the...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...Väyrynenite. 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, |  | | Catalog/List | | 10:00 AM â 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...and Trademark Office. 36190 GERHARD WAGNER TOURMALINE & FINE MINERALS COLLECTION, AUCTION 1 The Session...of the ground. Of the countryâs localities for Tourmaline, Momeik stands out for producing the instantly...world continues to grow. 73001 TOURMALINE Momeik Township, Kyaukme District, Shan State, Myanmar (Burma) |  | | Journal (article/letter/editorial) | | the natural, inorganic solid material (that is, mountains, rocks, stones, and metals). âTake, for example...Ă 7.5 cm, Kombat mine, Grootfontein district, Otjozondjupa Region, Namibia; Augustin de Valence photo...aquamarine, 22 Ă 27 Ă 25 cm, Shigar Valley, Skardu district, Baltistan, Gilgit-Baltistan, Pakistan; Alessandro...tanzanite, 14.5 Ă 3.5 Ă 5.5 cm, Merelani Hills, Arusha, Simanjiro district, Tanzania; James Elliot/Fine Minerals...cm, Mibladen mining district, Midelt, KhĂŠnifra Province, Meknès-Tafilalet Region, Morocco; James Elliot/Fine |  | | Journal (issue) | | of Aurora Gems; (6) a 9.15 ct ruby from Winza, Tanzania, courtesy of Hakimi & Sons; (7) a 14.80 ct âgoldenâ...Collection no. 32510; and (8) a 13.94 cuprian elbaite tourmaline from Mozambique, courtesy of Pala International...were combined under the jurisdiction of the U.S. District Court of New Jersey 168 PRODUCTION AND MARKETS...Africa, and its interest in the Williamson mine of Tanzania. Soon after the Cullinan deal went though (July...Weldon, 2009). One new source of corundum, Winza in Tanzania, began yielding some fine-quality ruby in 2007 |  | | Journal (article/letter/editorial) | | host rock. Formation of compositionally similar tourmaline-bearing veins in metabasite zone of the Brno...silicate rock at the type locality Merelani Hills, south of Arusha, Tanzania (Jobbins et al. 1975); albite...discuss formation of axinite-bearing and related tourmaline-bearing veins in the metabazite zone of the Brno...at La any, several localities of hydrothermal tourmaline-bearing veins cutting metabasites occur in the...Institute of Chemical Technology, Praha in the spectral region from 400 to 4000 cm â1 in a KBr tablet. Results |  | | 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 (issue) | | 142 Well-Formed Tsavorite Gem Crystals from Tanzania Robert E. Kane, A n t h o n y R. I...nickel (depending on the color desired) into a region that extends just below the surface of the otherwise...permitted microprobe analysis of both the near-surface region affected by the diffusion treatment process, as...colorless part (spectrum a), and i n the outer blue region (spectrum b), of a diffusion-treated blue sapphire...LOCATION, AND ACCESS When the Spaniards arrived in the region that is now Guatemala (about 1519), Mayan chiefs |  | | Catalog/List | | Design District Showroom 1518 Slocum Street ⢠Dallas, TX 75207 Heritage Auctions Design District Showroom...Board Hayley Brigham Managing Director Beverly Hills Greg Rohan President Alissa Ford Managing Director... GEMSTONES 72001 Gemstone: Pink Tourmaline - 7.85 Cts. California, USA Pink Tourmaline is one of the most popular...from California, one of the best locations for Tourmaline in the world, features good saturation and excellent...500-$3,500 72003 Gemstone: Tourmaline - 9.14 Cts. Mozambique Tourmaline is one of the most highly collectible |  | | Catalog/List | | Design District Showroom 1518 Slocum Street ⢠Dallas, TX 75207 Heritage Auctions Design District Showroom...York Hayley Brigham Managing Director Beverly Hills Jim Halperin Co-Chairman of the Board Ed Beardsley...Otjisongati) Ogonja (Onganja), Seeis, Windhoek District, Khomas Region Namibia This faceted Cuprite is from a...Otjisongati) Ogonja (Onganja), Seeis, Windhoek District, Khomas Region Namibia This colossal Cuprite gemstone...- 11.94 Cts. Sweet Home Mine Mount Bross, Alma District, Park Co. Colorado, USA This adorable pink-red |  | | Journal (article/letter/editorial) | | aquamarine, 9 cm high, from Sabsar, Skardu Road, Skardu district, Northern Areas, Pakistan. Jeremy C. Smith specimen... 18.2 cm high, from the Shigar Valley, Skardu district, Pakistan. Marcus Budil specimen. This is the...5 cm high, from Chumar Bakhoor, Nagar, Gilgit district, Pakistan. Marcus Budil specimen. This is an exquisite...superb form and color. Figure 16. Liddicoatite tourmaline slice, 71 Ă 84 mm, Madagascar. Polychrome Minerals...Madagascar tourmaline? Figure 14. Quartz, 14 cm high, from the Shigar Valley, Skardu district, Pakistan |  | | Book (volume) | | Prehnite) Goboboseb Mts., Brandberg Area, Erongo Region, Namibia, 67 Apatite (on Cookeite) Pulsifer Quarry...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...Mine, Tsumeb, Namibia, 11 Morganite (on Tourmaline) Tourmaline Queen Mine, San Diego Co., California,...Switzerland, 53 Tanzanite (with Quartz) Merelani Hills, Arusha Region, Tanzania, 52 Topaz (with Smoky Quartz) Dassu |  | | Catalog/List | | Design District Showroom 1518 Slocum Street ⢠Dallas, TX 75207 Heritage Auctions Design District Showroom...York Hayley Brigham Managing Director Beverly Hills Ed Beardsley Craig Kissick Jenny Milani Vice... Carthage Central Tennessee BaâFâPbâZn Mining District Smith Co., Tennessee, USA Fluorite from Elmwood...Estimate: $2,000â$3,000 Starting Bid: $1,000 72032 Tourmaline var. Rubellite Minas Gerais Brazil This âjackâstrawâ...âjackâstrawâ cluster is of Rubellite, a variety of Tourmaline. This ine example displays with a mix of numerous |
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Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania