 | | 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) | | TANZURINE Cherry-Red and Emerald-Green from Tanzania F ollowing the 2017 Denver mineral and gem shows...rocks as tanzurine after the country of origin, Tanzania, a name he coined and has patented. Bartky is...Most mineral collectors are aware that Tanzania in the region around the city of Arusha has, over the...many species. Much earlier, in 1967, in the Merelani Hills near Arusha, gemquality blue-violet zoisite...years. Far away from Arusha but still in northern Tanzania near its border with Kenya and in Maasai tribal |  | | Journal (issue) | | of Aurora Gems; (6) a 9.15 ct ruby from Winza, Tanzania, courtesy of Hakimi & Sons; (7) a 14.80 ct “golden”...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...with the opening of a new mine in the Nova Era region and technological developments at established mines |  | | Journal (issue) | | Dhabi Diamonds from Suriname Pink Axinite from Tanzania Volume 37 / No. 2 / 2020 COLUMNS What’s New...Gem Material | Colour-Change Garnet from Tanga, Tanzania | Hessonite from Somaliland | Laurentthomasite...Stefanos Karampelas 180 Diamonds from the Nassau Mountains, Suriname By Renoesha Naipal, J. C. (Hanco) Zwaan...R. D. Mason 120 192 Pink Axinite from Merelani, Tanzania: Origin of Colour and Luminescence By Maxence...Amethyst Mining in Brazil and Tanzanite Mining in Tanzania (December 2019) and A Comparative Case Study of |  | | Journal (issue) | | Yellowish Green Enstatite (and Star Enstatite) from Tanzania | Sunstone Labradorite-Bytownite from Ethiopia...Molybdenite Inclusions | Quartz from Madagascar with Fuchsite Phantom Inclusions | Tourmaline from Sri Lanka...Renaissance painter Girolamo Mocetto, shows the region near Mount Vesuvius, which erupted in 79 CE and...Trapiche Ruby from Khoan Thong, Luc Yen Mining District, Northern Vietnam 726 By Isabella Pignatelli...an existing deposit such as those in the Karoi District or the Zambezi Valley (cf. www.mindat.org/ locentries |  | | Journal (issue) | | Transbaikalia (label says "AdunChilon, Nerchinsky district; Siberia"), Russia. GMKFU #5753. 26. Beryl (emerald)...(Laksmanovskoe) deposit (Akhtaragda), Mirninsky region, Western Yakutia, Russia. GMKFU # 12163. 33. Andradite...12 x7 cm. Vilui deposit (Akhtaragda), Mirninsky region, Western Yakutia, Russia. GMKFU #4882, delivered...delivered by Peter L. Dravert, 1916. 34. Fuchsite. 9 x 7 cm. Berezovskoe deposit., Central Urals, Russia. GMKFU...Mussin-Pushkin (1795-1862), trustee of schools in the Kazan district in 1827-1844, one of the first donators to Museum |  | | Book | | from William Larson’s Stuart Mine in the Pala Mountains, California (USA). Next to it, a step-cut, red-green...mountain-forming cycles happened billions of years ago. Mountains of this age, with the encapsulation of a wide...(shield areas), often in truncated mountains, that is, mountains that have been almost completely eroded...millions of years, this process not only eroded the mountains but also a major section of the upper continental...Myanmar, and Sri Lanka), emeralds in schist (Zambia, Tanzania, and Transvaal), together with alexandritein biotite |  | | Report (edition) | | aragonite, cordierite, black jade, mookaite, fuchsite, jasper, and Munjina and Print stones, together... FRONTISPIECE Tiger iron from the Ord Ranges, Pilbara region, displaying folded bands of dark brown hematite...eye jasper from the Mount Brockman area, Pilbara region. The sphere, approximately 35 cm in diameter, contains.......................................... 34 Cue region...................................................................................... 34 Yalgoo region .............................................. |  | | Journal (issue) | | green chrome tourmaline from the Umba Valley (Tanzania) may show a wine-red colour when viewed in certain...Daluni area in the Umba Valley of north-eastern Tanzania. Several showed a startling green to orange or...and Henn (1988) described green tourmaline from Tanzania that exhibited a green/red alexandrite effect...the material was collected, with the Usambara mountains in the background. Gemmology Assuming a common...1: General view of the area, with the Usambara mountains in the background. The Table I gives the result |  | | Book | | dendritic aggregates comc from Mednorudnyansk, Ural mountains. Russia; crystals up to 30 mm ( : Vie in) were...Fine crystals were also found in Berezovsk. Ural mountains and in the Lena River basin, Siberia. Russia....to 15 mm ("/» in) come from Konder in Khabarovsk Region, small crystals, but mainly nuggets, weighing up...found in the Tura River basin near Turiinsk, Ural Mountains. Primary platinum is known from deposits in the...the vicinity of Nizhniy Tagil, Ural Mountains, Russia; from the Onvcrwacht mine, Bushveld, South Africa |  | | 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 Ed Beardsley Vice President and Managing...lunar meteorite was found in the Dhofar Desert region of Oman by noted meteorite hunter Michael Farmer...Millibillillie Meteorite Eucrite-mmict Wiluna District, Western Australia (26° 27’S, 120° 22’E) Fall:...a fascinating pattern of patches and veins. The region that produced this material has been closed now |  | | Report (edition) | | ................................ 32 Marble Bar region ........................................................................................ 36 Cue region ..................................................................................... 36 Yalgoo region .................................................................................... 40 Menzies region ................................................................................. 40 Coolgardie region .............................................. |  | | Book | | present too. ULTRAMARINE MUSCOVITE BERYL GYPSUM mountains of Badakhshan in Afghanistan have been a rich...exposed fresh rock, such as on sea cliffs, beaches, mountains, and volcanic terrains. Many of the harder, more...finding and recognising rocks. oolitic limestone MOUNTAINS VOLCANIC REGIONS dolomite BEACHES tuff QUARRIES...breccias, however, are formed from screes in mountains and fine along coasts, or in deserts due matrix...contains less olivine (p.159). Peridotite DARK BROWN hills of peridotite stand out above the surrounding land |  | | Book | | dendritic aggregates come fron1 Mednorudnyansk, Ural mountains, Russia; crystals up to 30 mm ('3/i6in) were found...Fine crystals were also found in Berezovsk, Ural mountains and in the Lena River basin, Siberia, Russia....15 mm (1 9h2 in) come from Konder in Khabarovsk Region, small crystals, but mainly nuggets, weighing up...found in the Tora River basin near Turiinsk, Ural Mountains. Primary platinum is known from deposits in the...the vicinity of Nizhn iy Tagil, Ural Mountains, Russia; from the Onveiwacht mine, Bushvekl, South Africa |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during...Discoveries, 1960-2015 ILMENITE AFRICA (Cherry) Mountains (Drnitriy Belakovskiy, personal communication |  | | Book (edition) | | extensive fields in the prophetically named Kimberley district of Western Australia promise to be of world importance...an inner solid region of diameter 2440 km and density about 8 gcm3, and an outer region about 2260 km...alumina, alkalis and the rarer elements. If the region is quiescent and all the magma solidifies in the...if about half way through crystallization, the region becomes 8 Rocks and the Processes That Formed...Miarolitic cavity in granite from the Mourne Mountains, Northern Ireland. A topaz with good crystal form |  | | Book | | rocks. It Is found In Erzgeblrge and the Harz Mountains (Germany), Glkos (Russia), Sterling Hill (New...(Russia), Hunan Province (China) and the Altai Mountains of Central Asia. C HgS Colour: bright scarlet...(Australia), Bereznyakov and YamanKasy, Ural Mountains (Russia), and Cripple Creek (Colorado, USA). ...Raddusa (Italy), Yazovsk and Podgornensk (Ural Mountains, Russia) and in salt domes in Texas (USA). Colour:...(Germany); it occurs elsewhere at Lake Valley District (New Mexico, USA), Atonopah (Nevada, USA), Broken | | | Book | | rocks. It Is found In Erzgeblrge and the Harz Mountains (Germany), Glkos (Russia), Sterling Hill (New...(Russia), Hunan Province (China) and the Altai Mountains of Central Asia. C HgS Colour: bright scarlet...(Australia), Bereznyakov and YamanKasy, Ural Mountains (Russia), and Cripple Creek (Colorado, USA). ...Raddusa (Italy), Yazovsk and Podgornensk (Ural Mountains, Russia) and in salt domes in Texas (USA). Colour:...(Germany); it occurs elsewhere at Lake Valley District (New Mexico, USA), Atonopah (Nevada, USA), Broken |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Uppsala, Uppsala, Sweden. Herbert Obodda: Short Hills, New Jersey. Renato Pagano: Milan, Italy. Ole V...Co., Bonanza mine, Trinity Co., Michigan Bluff district, Placer Co., in AK, placers at Fairbanks, Iditarod...and quartz veins at Juneau. In Canada, Noranda district, PQ; Porcupine, Kirkland Lake, and Larder Lake...deposits, ON; Atlin and Caribou, BC; and Klondike district, YT. In Mexico, Altar and Magdalena, SON; Parral...localities, AZ; Calico district, San Bernadino Co., Cerro Gordo(*), Inyo Co., Bodie district, Mono Co., and other |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g.... canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country names...are as follows: Mt. (mount or mountain), Mts. (mountains), R. (river), Is. (island), Vole. (volcano), Penin...and Transylvania. Some names of towns or even mountains were either changed or written in another manner...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided |
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Merelani Hills, Lelatema Mountains, Simanjiro District, Manyara Region, Tanzania