 | | Journal (article/letter/editorial) | | study of inclusions in gem corundum from Mercaderes, Cauca, Colombia Manuela Zeug1 · Andrés Ignacio Rodríguez...Mineral inclusions in gem corundum from Mercaderes, Cauca, Colombia, were investigated non-destructively...Limitada, Calle 51 Sur Nº 80i‑34, Bogotá, D.C., Colombia Keywords Colombian corundum · Zircon inclusion...alluvial gem corundum originating from Mercaderes, Cauca, Colombia. The formation of the Colombian corundum...aimed first at identifying the inclusions in the Mercaderes corundum based on their Raman and PL spectra |  | | Journal (issue) | | • Malagasy lapidary facility • Ruby and sapphire from Colombia • Lavender sugilite with green spots •...single copies or back issues to the Subscriptions Department. To obtain a Japanese translation of Gems & Gemology...scientist, in the mineralogy and petrography department at the Museum of Natural History, Vienna, Austria...this material. HISTORY Until fairly recently, sapphire occurrences in Madagascar were mentioned only...GEMOLOGY Fall 2000 Figure 1. Basalt-associated sapphire deposits were discovered in the Antsiranana Province |  | | Journal (issue) | | discovery in Canada • Gem-quality corundum from Colombia • Emeralds from Madagascar with strong blue/green...After the 2003 Tucson gem shows, the customs department of Madagascar temporarily froze the export of...B.M. (2003) Gem News International: Update on sapphire, pezzottaite, and other gems from Madagascar....(for comparison, the organic black shales at Muzo Colombia, thought to be the source of beryllium for the...rough was faceted in Thailand (and in Bogotá, Colombia, for some melee-size material), and then the polished |  | | Journal (issue) | | Tourmaline Species Age Dating of Zircon Inclusions in Sapphire Ethiopia Field Report 2019 Tucson Report Spring...55, No. 1 EDITORIAL 1 Studies on Tourmaline, Sapphire, Cultured Pearl, and a Reliquary of Legend… Duncan...André Paul Establishes a metamorphic origin for sapphire samples from these deposits, supported by their...and Kevin Schumacher Documents a visit to the sapphire, opal, and emerald mining and trading areas of...multiple features of interest • Color-change Burmese sapphire • CVD layer on natural diamond • Faint green HPHT |  | | Book (volume) | | Dr D. L. Altshuler Graduate Research Fellow, Department of Zoology, University of Texas, Austin, Texas...Research Group, Turramurra, Australia. R. Bündgen Department of Ornithology, Alexander Kónig Research Institute...Museum of Zoology, Bonn, Germany. Dr W. A. Calder Department of Ecology and Evolutionary Biology, University...Naramata, British Columbia, Canada. Dr P. Chai Department of Zoology, University of Texas, Austin, Texas...Freelance Ornithologist, England. M. Cohn-Haft Department of Biological Sciences and Museum of Natural |  | | Book (volume) | | come from Cuba, Mexico, Jamaica, Brazil, Ecuador, Colombia, Bolivia, Puerto Rico, Panama, Nicaragua and Costa...and similar studies in Paraguay, Peru, Ecuador, Colombia, Kenya,-Tanzania and Ethiopia. The species listed...Sierra Leone (CSSL) and Sierra Leone’s For- estry Department were joined by the RSPB in conserving Sierra...snakes, ICBP provided funds to Thailand’s Forest Department to set up a guard centre at the main site. In...the US State of the Birds report, issued by the Department of the Interior, and modelled after Audubon’s |
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Río Mayo, Mercaderes, Cauca Department, Colombia