 | | Journal (issue) | | gems. 28 Liddicoatite Tourmaline from Anjanabonoina, Madagascar Dona M. Dirlam, Brendan M. Laurs, Federico...elbaite with Cu ā¢ Vesuvianite from Kenya and Madagascar ā¢ Star opal triplets ā¢ Plus: Emeralds from Hiddenite...Hiddenite, North Carolina ā¢ Star emerald from Madagascar ā¢ Tourmaline āsliderā in quartz 107 109 111...this tourmaline has come from Madagascarās 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 |  | Ertl, Andreas, Topa, Dan, Giester, Gerald, Rossman, George R., Tillmanns, Ekkehart, Konzett, JĆ¼rgen (2019) Sr-bearing high-pressure tourmaline from the Kreuzeck Mountains, Eastern Alps, Austria. European Journal of Mineralogy, 31 (4) 791-798 doi:10.1127/ejm/2019/0031-2863 | Journal (article/letter/editorial) | | crystallization in the eclogite, i.e. tourmaline-bearing pegmatites in the country-rock, were inļ¬uenced by a Sr-bearing...pre-enriched in B by the intrusion of tourmaline-bearing pegmatites during Permian metamorphism. Laser-ablation inductively...metapelitic country rocks with tourmaline-bearing pegmatites, which intruded during Permian times. A crustal...and Fe (Table 4). Commonly, tourmaline-bearing pegmatites of the Austroalpine basement units and many other...tourmalines from the contact zone of Permian pegmatites to mica schists and marbles from different localities |  | | Report (issue) | | beryl is imported mainly from Brazil, China, Madagascar, Mozambique, and Portugal. High-purity beryllium... 90Ā° NAMIBIA Donkerhoek 90Ā° RUSSIA 135Ā° MADAGASCAR Sahatany Field DEMOCRATIC REPUBLIC OF THE CONGO...evolved volcanic and plutonic rocks, in granitic pegmatites, and in alkalic rocks compared with mantle compositions...(in biotite granite) to 10 ppm beryllium (in muscovite and two-mica granite) (Hƶrmann, 1978; Taylor and...(McLemore and Guilinger, 1993). Most beryllium-rich pegmatites have bulk beryllium contents of less than 250 |  | | Catalog/List | | Internet, Fax, and Mail) Heritage Auctions Design District Showroom 1518 Slocum Street ā¢ Dallas, TX 75207...17656. LOT VIEWING Heritage Auctions Design District Showroom 1518 Slocum Street ā¢ 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 (Butteās 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) | | 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...... |  | | Journal (issue) | | mainly consists of quartz, feldspar, and dark muscovite. Courtesy of Arkenstone, Robert Lavinsky collection...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...geochemistry of Nb and Ta in rare-element granitic pegmatites. Bulletin de Mineralogie, Vol. 108, pp. 499ā532...gem collection. Chiolite occurs in some granite pegmatites and is associated with ralstonite, pachnolite |
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