 | | 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 |  | Huong, Le, Otter, Laura, Förster, Michael, Hauzenberger, Christoph, Krenn, Kurt, Alard, Olivier, Macholdt, Dorothea, Weis, Ulrike, Stoll, Brigitte, Jochum, Klaus (2018) Femtosecond Laser Ablation-ICP-Mass Spectrometry and CHNS Elemental Analyzer Reveal Trace Element Characteristics of Danburite from Mexico, Tanzania, and Vietnam. Minerals, 8 (6) 234 doi:10.3390/min8060234 | Journal (article/letter/editorial) | | Reveal Trace Element Characteristics of Danburite from Mexico, Tanzania, and Vietnam Le Thi-Thu Huong 1, *...Published: 29 May 2018 Abstract: Danburite is a calcium borosilicate that forms within the...plasma (ICP)-mass spectrometry for danburite from Mexico, Tanzania, and Vietnam. The Tanzanian and Vietnamese...Our results imply that the trace elements of danburite reflect different involvement of metacarbonates...pegmatites among the different locations. Keywords: danburite; trace elements; REE; femtosecond LA-ICP-MS; CHNS |  | | Catalog/List | | it collected when the Tsumeb Mine (as well as other mines of the region) were still in production in...engineering work took him to the Tsumeb Mine in Namibia. This mine is renowned for producing what are arguably...MINERALS 57001 Azurite Level 8, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia If the attachment point on...Spitzkopje, Spitzkopje Area, Karibib District, Erongo Region, Namibia Klein Spitzkopje in Afrikaans means: the...Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia Some of the best things to come from the Tsumeb Mine were |  | | Journal (article/letter/editorial) | | weighs over a hundred pounds and is from the Delta Mine near Hanksville, Utah. You may see it in the center... Among them are meta-autunite from the Daybreak Mine, Washington, a new find at that time; sabugalite... Indiana. A large uraninite crystal from Morogoro, Uluguru Mountains, Tanganyika, was purchased with...group of axinite crystals from the Kurochi-Obira Mine of Kyushu, Japan, was also acquired through the...a large epidote crystal group from the Sola Pina Mine, Baja California, Mexico. Acquisitions of gems and |  | | Book | | clarify information regarding minerals from this region. The list, in alphabetical order, generally uses...Actinolite Actinolite Vyuntspakhk Crimea Sarbaiskii mine Sarbay deposit, Rudnyi Sarbay deposit, Rudnyi Sarbay...quarry Stephanitovaya vein, Sarbay quarry Sarbaiskii mine Stephanitovaya vein, Sarbay quarry Sarbay deposit...Khani River Komatiitovyi stream Kurzhunkul'skii mine Maidantai North Urals Pervomaiskii quarry Pogdornoye...Yubileinaya lode Kukisvumchorr Mt. Khibiny Kirovsky mine, Kukisvumchorr Mt. Kukisvumchorr Mt. Putelichorr |  | | Book | | Reveal Trace Element Characteristics of Danburite from Mexico, Tanzania, and Vietnam Reprinted from: Minerals...Enigmatic Alluvial Sapphires from the Orosmayo Region, Jujuy Province, Northwest Argentina: Insights...and Chantal Peiffert Metamorphic and Metasomatic Kyanite-Bearing Mineral Assemblages of Thassos Island (Rhodope...comparison of the trace element geochemistry of danburite, a gem mineral commonly formed within transition...Mexico, Tanzania, and Vietnam. Differences in the rare earth elements (REE) concentrations of danburite from |  | | Journal (issue) | | responsible for optical effects are described. As yet the region has not yielded a corundum crystal large enough...plant matter or dead animals can penetrate this region (Gubelin, 1987) unless forced by some external...intruded sand grain which somehow had penetrated the region between the shell and the shellbuilding ectoderm...Ch'unch'on). Annual production of the nephrite mine (the Daeil Mine) is reported to be approximately 80 000-90...map of nephrite mine area, Chuncheon, Korea. Occurrences The geology of the nephrite mine area consists |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...abbreviations used are as follows: Mt. (mount or mountain), Mts. (mountains), R. (river), Is. (island), Vole. (volcano)...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing |  | | Journal (issue) | | and absorption spectra are also known from Umba, Tanzania. The roughness of the crystal plate on both faces...1, Geology Geologyofofthe theYellow Yellow Mine Mine (Taita-Taveta (Taita-TavetaDistrict, District...commongemstone gemstonein in Kenyaand andTanzania Tanzania butbutlittle information is available on the geology...southern Kenya and Tanzania are also tourmaline deposits from southern Kenya and Tanzania are alsobriefly...pegmatite fromthethe John also JohnSaul SaulMine Mine(southern (southernKenya) Kenya)is is alsogiven. |  | | Journal (issue) | | mineral type localities. Ilmenite from the Ilmeny Mts, jozeite from San Jose, and other exhibits (up to...arranged according to geographical location (country — region — locality), excluding the tematic collections...ones, the Ilmeny Mts., Slyudyanka, Beryozovsk, Adun-Chilon, and the Zmeinogorskii mine appear to be represented...are from classical localities, such as the II'meny Mts., Beryozovskoye, Vesuvius, Erzgebirge, and others)...mines), malachite (the Gumeshevskii mine), crocoite (the Beryozovskii mine), jasper (Orsk), and others. Large |  | | Journal (issue) | | 322 Rubies and Sapphires from Winza, Central Tanzania Dietmar Schwarz, Vincent Pardieu, John M. Saul...diamonds traditionally associated with the Wesselton mine, “Cape” for pale yellow COLOR GRADING “D-TO-Z”...“D-TO-Z” DIAMONDS diamonds from the Cape of Good Hope region, and “Jager” for colorless diamonds with strong...those typically recovered from the “Jagersfontein” mine in South Africa (Shipley, 1950b; Liddicoat, 1993)...the blue region of the spectrum, as it is the absorption area of wavelengths in this region that allows |  | | Book | | Keweenaw area of north Michigan; at the Copper Queen mine, Bisbee, Arizona and at Georgetown, New Mexico....Premier mine is in this area), and Jagersfontein in the Orange Free State. Also found in Tanzania, Sierra...Localities. Lead is found in Sweden at the Harstig mine, Pajsberg; from the gold placers of the Ural Mountains...several localities in Chile, and from the Mohawk mine, Keweenaw County, Michigan; also from Lake Superior...chalcocite. Localities. Fine crystals from the Calabona mine, Alghero, Sardinia; other localities are Chile, |  | | Journal (issue) | | star enstatite from Norway|Garnet mining in Tanzania|Kyanite from Pakistan|Black star sapphires from Liberia|Age...on Petra Diamonds by Jim Davidson, (3) the Karowe mine by John Armstrong of Lucara Diamond Corp., (4) the...Mahenge, Tanzania In late 2015, a new alluvial garnet deposit was discovered near Mahenge, Tanzania, that...visited the deposit while on a buying trip to Tanzania. He was told that he was the first foreigner to...portion of the garnet-mining area near Mahenge, Tanzania. Photo by Farooq Hashmi. Gem Notes 101 Gem |  | | Journal (issue) | | Newsletter $6.00 Fibrous Malachite from the Mindingi Mine Katanga, Democratic Republic of the Congo Tony Nikischer...Specimens of fibrous malachite from the Mindingi Mine in the Kambove District of Katanga began to appear...ten {I 0) years ago (see figure J ). Although the mine was first worked superficially in the 1930s for...DRC as well (see figure 2). Today, the Mindingi Mine continues to produce wonderful malachite specimens...common forms seen from most nearby localities in the region. Solid, botryoidal malachite samples are currently |  | | Journal (issue) | | Unusual Crystallization or... Mineral Pathology? //Mine mlogicheskii zhurnal. 1989.1.11, N 2. p.96-98. 10...Aldanskogo raiona (Post-Jurassic intrusions of the Aldan Region) [1], which was included in the series Petrografiya...Kolyma gold-bearing region, started his labour and scientific career in this region. He visited Aldan for...latter. This was a fresh view of the geology of the region and was based on tens of routes and on hundreds...mines. The latter are fairly numerous over this region, but production at those deposits is now suspended |  | | Journal (issue) | | Ethiopia|Tourmaline from Mwajanga and Simanjiro District, Tanzania|Alluvial diamond mining in South Africa| Quartz...and CO2-H2O-bearing Fluid Inclusions in Yellow Danburite from Luc Yen, Vietnam By Le Thi-Thu Huong, Kurt...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 |  | | Journal (issue) | | apatite, barite, beryl (morganite), wollastonite, danburite, datolite, quartz, calcite, corundum, microcline...calcite; crystal aggregates 15 cm in size. Vеrklinii Mine, Dabugorsk, Pпmorskii Krai, Russia. Specimen: V...(samples of these crystals from kimberlites of this region were kindly submitted to the author by Yana Bao...reveal the rubies. Our field crew worked in this region in 1986 and suggested that the geologists use an...as visible aggregates which are of interest fora region-mineralogical collection (crystals, dtuses of crystals |  | | Journal (issue) | | 309 VOL. 40, No. 6 JUNE, 1965 CONTENTS THE DANBURITE LOCALITY AT DANBURY, CONN—Ronald E. Januzzi THE...Menard—1965 Buy and Use a Good Mineral Book Our SAPPHIRE mine will be open to Rockhounds. Write for information...Mineralogical and Geological Societies Northern Region — Rockrama — to be held at the Minnesota Fair Grounds...Belkxue. Wadi. v>:a)iM. Oa. 2. 3. 1965—Topeka Gun & Mine al Society, Inc., 9th Annual Show, will be held...Topeka, Kans. 66616. Oct. 2, 3, 1965 — Miami Valley Mine al and Gem Club Annual Show at the Dayton Museum |  | | Journal (issue) | | brown jarosite crystals on matrix from the McLean Mine, Esmeralda Co., Nevada. The Martian material was...manufacturer’s standards. NIST Price: $556.00 Hard Rock Mine Waste (SRM 2780a) This Standard Reference Material...analysis used to determine elements in hard rock mine waste and materials of a similar matrix. SRM 2780a...material collected from waste piles of abandoned mine sites in the mountains of central Colorado. A unit...images. Figure 6 (Right) - Sheet Copper – Flambeau Mine (Rusk County, WI) Figure 2—Dr. Weis’s Personal |  | | Journal (issue) | | San Pedro Mine in Santa Fe County, and along with his son Phillip is actively exploring the mine for minerals...minerals. The San Pedro Mine is perhaps best known for producing beautiful specimens of finely crystalline...Phillip have also developed a surface exposure at the mine to produce some very nice, single, sceptered quartz...ci rc ulatio n for some years. Sulfides are real mine rals and I still regret no t buy ing a good specimen...came from the Ortiz Mine (Cunningham Gulch) around 19845. The Ortiz mountains and mine are just a few miles |  | | Catalog/List | | inch area of curious flattened c1ystals Nanisivik ,Mine, Baffin island , North West Territories Canada £25...on I x2 quartz. Kando Hill, Hungary £7.50 13. DANBURITE tem1inated crystal 2.5 inches and about¾ inch...Specimen mounted on a plastic display base Volcano Mine, Tharis, l-Tuleva, Spain£25 15. MINIUM orange coating...x2 surface. with some minor green Pyromorphite 79 Mine Arizona USA £10 26. SMALTITE dark grey 5 111111...NICCOLITE quite rich mass in small I x2 matrix, la Rose Mine Cobalt Ontario Canada icENCE long wave. RE FLUO |  | | Journal (issue) | | aggregate of Cerussite from Mammoth-St. Anthony Mine (Tiger, Pinal Co., Arizona, USA). Ex coll. Rock...Treasures Exhibition at the TGMS Show 2008. Kelly Mine Smithsonite A Lesson Learned Bob Werner werner@lcturbonet...a lasting impression on me occurred in the Kelly Mine in New Mexico in the late SO's. Socorro, New Mexico...ofsmithsonitc that was labeled as coming from the Kelly Mine, about 26 miles west of Socorro in the Magdalena...locate its source in the Kelly Mine. As it turned out, the Kelly Mine was well known to the students |  | | Catalog/List | | silver-arsenide deposits of the Cobalt-Gowganda region , Ontario",Can. Min. 11:1-429. Slabs show globular...Vein , Tachgagalt , near Ouarzazate, Anti-Atlas Mts. , Morocco. Very dark brown granular henritermierite...9 cm - 9 x 12 cm ... $15.00 AgCI , Proprietary Mine, Broken Hill , New South Wales. 10 x 5 x 4 cm matrix...MALACHITE, . . . $120.00 AESCHYNITE-Y Musonoi Mine, Kolwezi, Shaba , Zaire. •82834 (a) Excellent green...specimens set attractively for display.) Hillveit Mine , Setesdal District, Norway. (a) Large (4.2 x 1 |  | | Journal (article/letter/editorial) | | comparison of the trace element geochemistry of danburite, a gem mineral commonly formed within transition...as a late magmatic accessory phase from Mexico, Tanzania, and Vietnam. Differences in the rare earth elements...elements (REE) concentrations of danburite from the different localities were observed and these show...on another occurrence of sapphires in the same region of the South Urals occurring in anorthosites (kyshtymites)...evolution of alluvial sapphires from the Orosmayo region (Jujuy Province, NW Argentina) and importantly | | | Catalog/List | | and costs only £10 plus post 1147 ■■ALTAITE Organ Mts, Dona Anna County, New Mexico a few silvery I mm...OH Ix! £3 lx2 £6 2x2 £10 34 ■ANDRADITE Benallt Mine, Lleyn Wales Pale beige fine grained mass with reddish...serpentine. Ix! £5 lx2 £10 38 BANALSITE Benallt Mine, Lleyn Wales Rich brown mass with approx 5 % Cymrite...£15 2x2 £30 Ba Na Al SiO 22 BANNISTERITE Benallt Mine. Lleyn, Wales Dark brown veinlets throughtout calcite/...fairly sparse. Ix½ £7 CuSe 73 ■BRAUNITE Praboma Mine, St Marcel ,Piedmont, Italy Dark grey massive with |
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