 | | Journal (article/letter/editorial) | | certain pegmatites, granite bodies, quartz veins, and metal deposits. The pockets of pegmatites can be...forms in hydrothermal environments including pegmatites, greisens, and alpine and other veins. Commonly...a general association with amazonite-bearing pegmatites. Good phenakite specimens are relatively rare...the Morefield and Rutherford mine pegmatites, of the Amelia district, Amelia County, and as irregular...reportedly reached 5 cm in length although the Amelia district is perhaps better known for micro-sized phenakite |  | | Journal (article/letter/editorial) | | GEM-MINERALIZED AND “HYBRID” ANJANABONOINA GRANITIC PEGMATITE, CENTRAL MADAGASCAR: A RECORD OF MAGMATIC AND... Moro 5, I–00185 Roma, Italy Abstract The Anjanabonoina rare-element-enriched granitic pegmatite dikes...dikes, located about 40 km southwest of Betafo, in central Madagascar, are emplaced in a complex environment...spodumene, and hambergite) typical of much of the Anjanabonoina dike. Large crystals of pyrochlore of the first...alteration processes, granitic pegmatite, Anjanabonoina, central Madagascar. Sommaire Les filons de pegmatite |  | Ertl, A., Hughes, J. M., Prowatke, S., Ludwig, T., Prasad, P. S.R., Brandstatter, F., Korner, W., Schuster, R., Pertlik, F., Marschall, H. (2006) Tetrahedrally coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic studies. American Mineralogist, 91 (11) 1847-1856 doi:10.2138/am.2006.2245 | Journal (article/letter/editorial) | | tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic...liddicoatite-elbaite series from pegmatites from Anjanabonoina, Madagascar, have been characterized by crystal-structure...formulae of the Al-rich tourmalines from Anjanabonoina, Madagascar, show ~ ■0.2 (vacancies) on the Y site...Liddicoatite-elbaite, tetrahedrally coordinated boron, Madagascar, structure, chemistry INTRODUCTION AND PREVIOUS...the liddicoatite-elbaite series) from Anjanabonoina, Madagascar, by crystal-structure reÞnement and by |  | | Journal (issue) | | gems. 28 Liddicoatite Tourmaline from Anjanabonoina, Madagascar Dona M. Dirlam, Brendan M. Laurs, Federico...elbaite with Cu • Vesuvianite from Kenya and Madagascar • Star opal triplets • Plus: Emeralds from Hiddenite...Hiddenite, North Carolina • Star emerald from Madagascar • Tourmaline “slider” in quartz 107 109 111...this tourmaline has come from Madagascar’s Anjanabonoina mine and contains remarkable color zoning, as...they decided to go to the heart of the diamond district in New York. Liddicoat and Crowningshield taught |  | | Catalog/List | | Internet, Fax, and Mail) Heritage Auctions Design District Showroom 1518 Slocum Street • Dallas, TX 75207...17656. LOT VIEWING Heritage Auctions Design District Showroom 1518 Slocum Street • Dallas, TX 75207...Pallasite - PMG Hekandue River, Seymchan Magadan District, Russia This slice of the Seymchan Meteorite does...Pallasite - PMG Hekandue River, Seymchan Magadan District, Russia There are not enough superlatives to describe...Pallasite - PMG Hekandue River, Seymchan Magadan District, Russia This is a truly massive slice of the Seymchan |  | | Journal (issue) | | only comprehensive mineralogical study of the district. This work is as valuable today as it was 37 years...extraction technology originally conceived in the district were considered the state-of-the-art around the...1957). By the winter of 1864 the Summit Valley district (Butte’s original name) had been organized, with...bulk of the primary silver produced in the Butte district eventually came from the Rainbow vein system....dispatch a man by the name of Marcus Daly to the district in 1876, in order to examine the mining prospects |  | | Report (issue) | | beryl is imported mainly from Brazil, China, Madagascar, Mozambique, and Portugal. High-purity beryllium... 90° NAMIBIA Donkerhoek 90° RUSSIA 135° MADAGASCAR Sahatany Field DEMOCRATIC REPUBLIC OF THE CONGO...evolved volcanic and plutonic rocks, in granitic pegmatites, and in alkalic rocks compared with mantle compositions...(McLemore and Guilinger, 1993). Most beryllium-rich pegmatites have bulk beryllium contents of less than 250...(London and Evensen, 2002), although some albitic pegmatites have bulk contents in the range of from 360 to |  | | Journal (issue) | | Resources. According to Wang et al. (1996), 22 pegmatites and 8 quartz veins related to emerald had been...gem mines in the central deposits, around Khlung District within Chanthaburi Province, have supplied more...Anorthoclase Albite Oligoclase Andesine Labradorite Bytownite Ab 0-10 An% 10-30 An% Albite NaAlSi3O8...of the feldspar inclusions contained a Narich (albite) component with low K and Ca contents ranging between...displayed a Raman spectrum matching that of sanidine. Albite and sanidine inclusions were previously reported |  | | Report (issue) | | Cave-in-Rock subdistrict, Illinois-Kentucky fluorspar district............................................G3...Cantabrian salt-related carbonate-hosted mineral district in north-central Spain..........................Red Dog mining district in Alaska and the stratigraphy of selected deposits in the district...............locations of selected lithium-cesium-tantalum pegmatites and lithium granites...........................lithium-cesium-tantalum pegmatites, detrital zircons from modern river sands, and lithium resources in pegmatites...... |
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Anjanabonoina pegmatites, Ambohimanambola, Betafo District, Vakinankaratra, Madagascar