| | Catalog/List | SignatureĀ® Internet Session 2 Heritage Auctions Design District Annex 1518 Slocum Street ā¢ Dallas, TX 75207 (HERITAGELive...Topaz Klein Spitzkopje, Spitzkopje Area, Karibib District, Erongo Region, Namibia Klein Spitzkopje in Afrikaans...57007 Jeremejevite Ameib Farm 60, Usakos, Karibib District, Erongo Region, Namibia Jeremejevite crystals...Cuprite Onganja Mine, Onganja, Seeis, Windhoek District, Khomas Region, Namibia One of the iconic Cuprite... 57009 Cerussite Kombat Mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia Kombat Cerussites | | | 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 āHYBRIDā ANJANABONOINA GRANITIC PEGMATITE, CENTRAL MADAGASCAR: A RECORD OF MAGMATIC AND... Moro 5, Iā00185 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 | | | 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...calcic amphibole + K-feldspar + rutile + apatite + zircon that formed under peak metamorphic PāT conditions...UāPb isotopic dating by using eight data points (zircon) yielded a well-constrained intercept age of 90...pre-enriched in B by the intrusion of tourmaline-bearing pegmatites during Permian metamorphism. Laser-ablation inductively...distinguished optically and chemically (Table 4). Zrn, zircon; Rt, rutile; Ap, apatite. Table 2. Atomic parameters | | | 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 | | | Journal (issue) | Resources. According to Wang et al. (1996), 22 pegmatites and 8 quartz veins related to emerald had been...and silicate melts in ruby and purple sapphire. Zircon, alkali feldspar (mostly with high Na content)...gem mines in the central deposits, around Khlung District within Chanthaburi Province, have supplied more...for background counts. For special analyses of zircon and monazite inclusions, an accelerating voltage...ChanthaburiāKhao Wua ā Chanthaburi-TratāBo Welu Zircon Chanthaburi-TratāBo Welu Silicates D TratāNa | | | 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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