 | | Journal (issue) | | North-West Branch: R. Perrett, FGA South Yorkshire & District Branch: G. A. Massie, FGA Examiners: A. J. Allnutt...figures on a first order prism face of a green beryl crystal from the Soviet Union. The c-axis runs in...Interference Contrast. 80x. (See 'Etch figures on beryl', p. 142) Photograph by John I. Koivula. ISSN:...we have yet another. ANICS, synthetically grown beryl During the International Gemmological Conference...the author was given a group of four synthetic beryl crystals. They were given via Dr Miyata of the Institute |  | | Journal (article/letter/editorial) | | 2006). Type I is largely known in Brazil and Mozambique, where many pegmatites have the epithet "Alto"...pegmatite, Brazil, is situated in the Borborema Province (Farias and Rodrigues da Silva, 1986; Wegner et...Beurlen et al, 2011). In Mozambique the Alto Ligonha District (Zambezia Province) is synonymous with one...out is called saprolite. Examples from the Weiss Mine, Germany, show this transition. There are types...two 3-D views, one from the Hagendorf-Pleystein Province typical of alluvial, fluvial and colluvial accumulations |  | | Journal (issue) | | have been known to produce district of the Northern Rift Valley Province, and corundum in all possible...which can produce This region is part of the Mozambique orogenic star stones in commercial quantity....Several years ago, a small lot of blue sapphires Mozambique and northwards through the Sudan appeared on... is located in the Turkana district of the Northern Rift Valley Province on the west side of Lake Turkana...estimates on reserves of about 2.000 tons of green beryl, including emerald. Of these, 990 tons came from |  | | Journal (issue) | | demantoid, (12) 1.05 ct emerald, (13) 1.99 ct red beryl, (14) 0.72 ct ruby, (15) 1.15 ct purplepink sapphire...marketed, and merchandized. In diamonds especially, the mine-to-market process has been severely tested. Vertical...feldspar, iolite, lapis lazuli, maw sit sit, red beryl, rhodochrosite, rhodonite, scapolite, sphene, spodumene...reference to the country rather than to the specific mine or region. For more on the specific localities,...These aquamarines (9.05 and 4.90 ct) are from Mozambique. Courtesy of Steve Avery; photo by Robert Weldon |  | | Journal (issue) | | News International Tucson 2012 • Aquamarine from Mozambique • Azurite in granitic rock from Pakistan • Cat’s-eye...region (near the municipality of Lajes) had produced beryl and/or columbite-tantalite from pegmatites, but...efforts and promising early results, the emerald mine has not yet begun production. 2 GEMS & GEMOLOGY...(1945) and Rolff (1946) in the Borborema Pegmatitic Province. In 2006, a team led by one of the present authors...deposit is located near the Bonfim gold-tungsten mine (figure 2), at coordinates 05°50.45¢S, 036°07.10¢W |  | Franz, Gerhard, Vyshnevskyi, Oleksii, Taran, Michail, Khomenko, Vladimir, Wiedenbeck, Michael, Schiperski, Ferry, Nissen, Jörg (2020) A new emerald occurrence from Kruta Balka, Western Peri-Azovian region, Ukraine: Implications for understanding the crystal chemistry of emerald. American Mineralogist, 105 (2) 162-181 doi:10.2138/am-2020-7010 | Journal (article/letter/editorial) | | investigated emerald, the bright-green gem variety of beryl, from a new locality at Kruta Balka, Ukraine, and...called femag-beryl with Na occupying a vacancy position (o) in the structural channels of beryl. Based on...apatite) point to a pegmatitic origin. Keywords: Beryl, substitution mechanisms, ion microprobe analysis...and Boron: Quintessentially crustal Introduction Beryl, ideally Al2Be3[Si6O18], is the most abundant Be-bearing...Be-bearing mineral; solid solutions between beryl and other components have been the subject of several |  | | Journal (issue) | | Opening a Tsavorite Mine T anzaniteOne Limited is working towards opening a tsavorite mine not far from its...Tanzania, about 20 kilometers from its tanzanite mine. The project has a total indicated resource of 1...establishing an economic model for a potential tsavorite mine. We expect to provide a further resource update...capital of Laos’ Bokèo District. Bokèo means literally “gem mines” (bo = mine; kèo = gems or glass)....Thailand, the cenon, today Huay Xai ct. Bokèo = mine; cross the ng–Huay and will mstone.org provide |  | | Journal (issue) | | setting Gem sapphirine is being recovered from a mine about Sapphirine is derived and obtained from rocks...Sri Lanka the gem sapphirine comes from a carats. mine located near the 9th milepost along the Abstract...official annual output (in kg) of emerald/green beryl of the Carnaiba area (1977-1982) and for both areas...Vs in Carnaiba. With the exception of the Belmont Mine in Itabira/MG, the mining methods in the Socotö...emeralds are Table 1. Annual output of emerald/green beryl in the mining area of Carnaiba (1977-1982) and Carnaiba/Socotö |
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