 | | Catalog/List | | come from China and the Democratic Republic of the Congo. Malachite stalactites represent the epitome of...Malachite Stalactites, Star of the Congo Mine, Lubumbashi, Haut-Katanga, DRC 36 cm tall x 27 cm wide 12...celadonite inclusions, amethyst intermixed with citrine, red hematite, more green celadonite, then amethyst |  | | Show/Event (guide) | | Booth#: Tent G7 Brazilian minerals and specimens, citrine, crystals spheres and points, tourmaline and aquamarine...aquamarine specimens, cut stones and citrine spheres. AM JEWELRY 1811 27th Ave, 107 Oakland, CA 94601...in silver and gold. AMBER DREAMS 12899 Winged Elm Dr. N. Jacksonville, FL 32246 USA Tel: 706-372-1922...of Exhibitors ARISTYA SILVER BALI 1034 Occidental Dr. Claremont, CA 91711 USA Tel: 818-357-0448 www.aristya-silver...gemstones. ART AFRICA 14, Av. Boundi Lubumbashi, D.R. Congo D.R. Congo Tel: +24-399-702-5844 Booth#: Tent |  | | Show/Event (guide) | | silver jewelry. AFGHAN GEM JEWELRY 6273 Langford Dr. #2 Citrus Heights, CA 95621 USA Tel: 916-224-2785...Tel: +33-988-055-694 Booth#: TW1 Tourmaline, citrine, points, balls, spheres, specimens & minerals from...in silver and gold. AMBER DREAMS 12899 Winged Elm Dr. N. Jacksonville, FL 32246 USA Tel: 706-372-1922...unusual stones. ANOTHER TIME AND PLACE 5760 Legacy Dr, Ste #B2 Plano, Texas 75024 USA Tel: 2148435572 ...and sapphires. ARISTYA SILVER BALI 1034 Occidental Dr. Claremont, CA 91711 USA Tel: 818-357-0448 http://www |  | | Journal (issue) | | from the Kamoya South mine, Katanga Province, Democratic Republic of the Congo. Joe Budd photo. Euclase...Mashamba West mine, Kolwezi district, Katanga, Democratic Republic of Congo. No repairs or restorations. We...LāEtoile du Congo mine (Star of the Congo mine), Lubumbashi, Katanga, Democratic Republic of the Congo. Matt...West mine, Lualaba, Democratic Republic of the Congo. Tom Spann photo. Aquamarine on feldspar with schorl...Mashamba West mine in the Democratic Republic of the Congo. Jeff Scovil photo. Malachite rosettes with dioptase |  | | Journal (article/letter/editorial) | | North China), and Atlantica (containing Amazonia, Congo, West Africa, and Rio de la Plata). A supercontinent...(Bahia coastline) and western Africa (Cameroun and Congo). These mafic dikes were probably emplaced during...Fault Back-arc (?) rift basin Fault (?) Congo DR CuāCoā(U) Congo DR CuāPbāZn (b) South America Morro Agudo...acquamarine, tourmaline, alexandrite, ametiste, citrine and topaz. Another large granitic pegmatite province...acknowledge the invitation of Prof. Masaru Yoshida and Dr. Jacques Cailteux for this contribution, as part |  | | Journal (issue) | | Kipushi, Shaba Province, Democratic Republic of Congo (M80.2.21). Purchased at the 1980 Tucson Show. Thaumasite...work of former Senior Curator, Dr. Bill Birch, and current Senior Curator, Dr. Stuart Mills. Of particular...(cobalt-rich) on dioptase, 6 cm, from Haut-Katanga, Democratic Republic of the Congo. Gerald Pauley photo. Uvite... Kamoya, Kambove district, Haut-Katanga, Democratic Republic of the Congo. Gerald Pauley photo. Gold...LāEtoile du Congo (āStar of the Congoā) mine, Lubumbashi, Haut-Katanga, Democratic Republic of Congo. Gerald |  | | Catalog/List | | thick jungles of the Central African Republic, Congo, and Cameroon and are very difficult and expensive...Because of the locations of their natural habitat ā Congo, Central African Republic, Cameroon, the Sudan ā...sought-after mineral. Estimate: $600 ā $800 48185 CITRINE āFLOWERā GEODE Serra Geral Formation, Ametista...Grande do Sul, South Region, Brazil This unusual citrine geode opens up like a trumpet flower, instead of...commonly seen narrow tunnel or cathedral shape. Citrine geodes from Brazil are heat treated amethyst geodes |  | | Journal (issue) | | from the L'Etoile du Congo mine, Lubumbashi, Katanga, Democratic Republic of the Congo. Don and Laura Aaron...the Kolwezi District, Katanga Copper Crescent, Katanga, Democratic Republic of Congo (Zaire). Steve Blyskal...dolomite, 8 cm, from Kolwezi, Katanga, Democratic Republic of the Congo; from a small find in 1992. Paul...Mashamba West mine, Kolwezi, Katanga (Shaba) Province, Democratic Republic of Congo (Zaire). Joe Budd photo...BUDD ..,..,,__ _ _ _ _ _ _ _ _ _ ~ Quartz (var. citrine), 7 cm, from the Santa Clara pegmatite, Minas Gerais |  | | Catalog/List | | CT 13 72016 Gemstone: Citrine - 39.08 Cts. Rio Grande do Sul Brazil Citrine is the yellow variety of...a popular stone for cutting and faceting. This Citrine, out of the collection of Bernadine Johnson, has...example of Ametrine, which is part Amethyst and part Citrine. This 60+ carat stone yields from the quintessential...56.79 Cts. Nord-Kivu Democratic Republic of the Congo Bicolor Tourmaline gemstones are always in vogue...Stone Source: Shattuckite: Democratic Republic of Congo (ZaĆÆre) Petriied Wood: Arizona, USA Artist: Konstantin |  | | Journal (issue) | | Diane Brownlee Richard J. Rossi Richard W. Graeme Dr. Nikolas Golosow FELLOWS Steven M. Goldfine (2016ā2021)...Acquainted with the Mogok Stone Tract by Bill Larson Dr. Edward GĆ¼belin, one of the foremost gemologists...some Burmese who had befriended meāmost particularly Dr. Saw Naung U, who loved mining and gemstones, and...and I stuck to purchasing only natural crystals. Dr. Saw arranged meetings for me with several geology...mineral enthusiasts grew to more than 30 people. Dr. Saw introduced me to the head gemologist of Myanmar |  | | Book (edition) | | This book is respectfully dedicated to the memory of Dr. John Sinkankas for his kind initiative and support...by Strunz (1996). Thanks to the kind permission of Dr. E. Nagele from the E. Schweizerbart'sche Verlagsbuchhandlung...arisen with localities in Congo-Zaire: the country, named Democratic Republic of Congo since 1960, was changed...Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga administrative region...There is also a country called Republic of Congo or simply Congo (capital Brazzaville). Information about |  | | Book (edition) | | stones virtually indistinguishable from natural citrine and amethyst, which are now produced in Russia...pointed out errors of omissions in the first edition. Dr Kurt Nassau has been most helpful in advising on...based mainly on his information. My thanks go to Dr W E Smith of Chelsea College of Science and Technology...minerals which forms the first part of the book. Dr W Stern advised on the part dealing with the marketing...kindly prepared for me by Mr G A White of Norwich. Dr E GĆ¼belin allowed the use of some of his excellent |  | | Journal (issue) | | MINERALS Gus Meister. Treasurer (CFMS) 380 Anna Marie Dr.. Alladena. CA 91002 Kenneth V. Zahn, Secretary (EFMLS)...1643 Matson Dr ā¢ San Jose, CA 95124 William E Tirk . Second Vice-President 3944 Aragon Dr.. San Diego...Mills Jr. High School. 10439 Coloma Rd. east of Chase Dr.. Rancho Cordova. CA. 109 and 10-5. Robert Goldsworth..................... $1 .70 per gram MALACHITE ā¢ CONGO (EYES). Super selected for hnest color and botryoidal..................... $3.25 per ounce MALACHITE ā¢ CONGO. Super selected for maximum color IntensItv and |  | | Report (volume) | | 'Notices of remains of extinct m.amm.alia, discovered by Dr. F. V. Hayden in Nebraska Territory.' Proc. Acad...1929 with the Whitney South Sea Expedition I asked Dr. Hartert by letter about the name of the brown eagle...eagle which we found quite common on Choiseul Island. Dr. Hartert wrote me that there was no brown eagle known...-Very similar to poliocephalus, but back more citrine, less greenish; crown less grayish, more fuscous...olivaceous, sometimes with an indication of a citrine central stripe; white superciliary not as pronounced; |  | | Book | | compiled (as were the following twenty Lists) by Dr L J Spencer, with the object of providing a convenient...arose from the collaboration of one of us (PGE) with Dr Hey in the preparation of recent Lists, and a recognition...Society of Great Britain and by their present compiler, Dr M H Hey. It should be noted in this connection that...1939), which attracted the comment in a review by Dr L J Spencer: āMuch of the inforĀ¬ mation has been...Magazine and Abstractsā (M.A. 7, 313). We also thank Dr Hey for his encouragement and many helpful comments |  | | Book | | Gemstones 300 of the Earth's natural treasures Dr. David C. Cook & Dr. Wendy L. l(irl< THUNDER BAY - - PĀ· RĀ·EĀ·SĀ·S...the Copper Belt of Zambia, Rio Tinto (Spain), Katanga (Congo), Cyprus, the Urals (Russia), and Montana,...other locations are Tsumeb (Namibia), Kapushl, (Katanga, Congo) and in the ash from Mt St Helens (Washington...Colours are produced by Iron hydrates in yellow citrine, ferric oxide in violet amethyst, and titanium...becquerelite. Billietite is found in Shaba Province (Congo), the La Crouzllle, Margnac and Rabejac mines (France) | | | Book | | Gemstones 300 of the Earth's natural treasures Dr. David C. Cook & Dr. Wendy L. l(irl< THUNDER BAY - - PĀ· RĀ·EĀ·SĀ·S...the Copper Belt of Zambia, Rio Tinto (Spain), Katanga (Congo), Cyprus, the Urals (Russia), and Montana,...other locations are Tsumeb (Namibia), Kapushl, (Katanga, Congo) and in the ash from Mt St Helens (Washington...Colours are produced by Iron hydrates in yellow citrine, ferric oxide in violet amethyst, and titanium...becquerelite. Billietite is found in Shaba Province (Congo), the La Crouzllle, Margnac and Rabejac mines (France) |  | | Report (issue) | | 27 Chad . . . . . . . . . . . . . . . . . . . 31 Congo . . . . . . . . . . . . . . . . . . 33 Cote d'Ivoire...Heydari is a mining engineer and mineral economist. Dr. Heydari has worked in California, Colorado, and...petroleum and diamonds in Angola, petroleum in the Congo and Nigeria, gold in Ghana, bauxite in Guinea, uranium...'32 82 620 10 Central African Republic 414 Congo 115 Cote d' lvoire 510 178 17,000 5 15 (2)...million carats, was smuggled out of the country into Congo via Zaire. Crude oil exports accounted for approximately |  | | Journal (volume) | | become a rich yellow colour as they turn into citrine quartz. Th is colo ur change is difficult t o predict...Namibia; in Yanga-Koubanza, Democratic Republic of the Congo; and in various parts of France, Greece, Italy and...Germany, Hungary, Russia , Democratic Republic of the Congo , Bolivia, Chile, Mexico and Japan. In the UK it...Republic of the Congo>. āŗ Cuprite crystals in a rock cavity in Shaba, D.R. Congo. FACT FILE CUPRITE...gets its name), Russia, Democratic Republic of Congo and Arizona, USA. In the UK, it can be found in |  | | Journal (issue) | | river on the whole continent after the Nile, the Congo and the Niger. It drains an area of more than 1...export earnings. Less valuable amounts of gold, citrine quartz, ilmenite, columbite, chromite, gemquality...River Zaire (formerly the River Congo). The surrounding nations are the Congo, the Central African Republic...by rugged mountain country called the Shaba, or Katanga, Plateau. This region, which is 1220m above sea...processing centres at the provincial towns of Lubumbashi, Likasi and Kolwezi. Above: The Zaire River flows |  | | Book (edition) | | Vally, Italy; and in Precambrian dolomites in the Congo. 14 ALLACTITE SELECTED REFERENCE: Alietti, A...SPACE GROUP: C2/c Tbs NPs LATTICE CONSTANTS: @ A215 Dr 9265, C= 1156, FS 9417" 3 STRONGEST DIFFRACTION LINES:...Romania, USSR, Australia, Japan, Zaire, Zambia, Congo, and at Tsumeb, Namibia. SELECTED REFERENCE: Palache...and Redruth, Cornwall, England; and at Musonoi, Katanga, Zaire. Also found at localities in Brazil, Iran...dewindtite, schoepite, and curite, at Shinkolobwe, Katanga, Zaire; at several localities in the Colorado Pla- | | | Book (edition) | | Vally, Italy; and in Precambrian dolomites in the Congo. 14 ALLACTITE SELECTED REFERENCE: Alietri ....Romania , USSR, Australia, Ja pan, Zaire, Zambia, Congo, and at Tsumeb, Namibia. SELECTED REFERENCE: Palache...and Redruth, Cornwall, England; and at Musonoi, Katanga, Zaire. Also found at localities in Brazil, Iran...dewindtite, schoepite, and curite, at Shinkolobwe, Katanga, Zaire; at several localities in the Colorado Plateau...fourmarierite, torbernite, and uranophane, at Shinkolobwe, Katanga, Zaire. SELECTED REFERENCE: Christ, C. L., and |  | | Book (edition) | | Over forty years ago. in 1950. the first edition of Dr Max Hcy's Chemical Index of Minemls was published...efforts of Dr Andrew Clark. we arc able to welcome this new and expanded version. Like Dr Hey's. it is...continue the valuable work initiated and produced by Dr Hey with the help of several colleagues. Professor...edition and initiated resumption of the work after Dr Hey's death. P.G. Embrey obtained an on-line version...Embrey. in 1974. At the time of his death in 1984 Dr Hey had compiled a card imlcx extending to about |  | | Report (issue) | | and switches, and radio and radar 1 According to Dr. Roy E . .Albert, Division of Biology and Medicine...__________________ 228,800 (4) 381,524 27,500 Africa: Belgian Congo (in ore) ______ __ _______ 1,003 1,188 1,470 495...increase substantially include Canada, Peru, Belgian Congo, and North Africa. A potentially large use of cadmium...spectacularly since y\Torld "\i\Tar I. Belgian Congo is the largest producer of cobalt ore and cobalt...largest producer of cobalt in the world. In Belgian Congo it has 1nines, washing and concentrating plants |  | | Book (volume) | | Academy of Sciences, Pushchino, Moscow Oblast, Russia. Dr L. A. Bennun Director of Science, Policy and Information...Information, BirdLife International, Cambridge, England. Dr D. Brewer Research Associate, Department of Ornithology...Ornithology, Royal Ontario Museum, Toronto, Canada. Dr S. H. M. Butchart Global Research and Indicators Coordinator...ornithological consultant, Wisbech, Cambridgeshire, England. Dr N. J. Collar Leventis Fellow in Conservation Biology...Centre for Ecology & Hydrology, Wallingford, England. Dr R. I. Orenstein Freelance consultant, Mississauga |
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