 | | Journal (article/letter/editorial) | | Chrysoberyl, beryl and zincian spinel mineralization in granulite-facies Archaean rocks at Dowerin, Western Australia...Planetary Sciences, Western Australian Museum, Francis Street, Perth, Western Australia 6000 ABSTR ACT ...occurs near Dowerin, in the southwestern region of the Archaean Yilgarn Craton, Western Australia. The deposit...Batholith (2587±25 Ma). Beryllium mineralization at Dowerin occurs in plagioclasequartz-biotite-garnet gneiss...associated zincian hercynite and/or almandine. Trace beryl (0.04 0.20 wt.% Cr2O3; 0.54 0.71 wt.% FeO; trace– |  | Pautov, L. A., Popov, M. P., Erokhin, Yu. V., Khiller, V. V., Karpenko, V. Yu. (2013) Mariinskite, BeCr2O4, a new mineral, chromium analog of chrysoberyl. Geology of Ore Deposits, 55 (8) 648-662 doi:10.1134/s1075701513080096 | Journal (article/letter/editorial) | | zones: (9) proved, (10) inferred; (11) emerald–beryl deposits and occurrences. Numerals mark the largest...Nordenskiöld, this gemquality variety of chryso beryl was named alexandrite, in honor of the heir to the...content (1.36 wt % Cr2O3) in chrysoberyl from Dowerin, Australia was published by Downes and Bevan (2002)...southeast of Yekaterin burg, as a group of emerald–beryl deposits extending for 25 km in the meridional direction...1976); Kerala, India (Soman and Nair, 1985); Dowerin, Australia (Downes and Bevan, 2002); Franqueira, Spain |  | | Report (edition) | | maps produced by the Geological Survey of Western Australia are available from: Information Centre Department...Bulletin 25 GEMSTONES OF WESTERN AUSTRALIA Gemstones of Western Australia second edition While systematically...authoritative, the second edition of Gemstones of Western Australia is written not only for the professional geologist...et al. The second edition of Gemstones of Western Australia is an updated version published in response...formal inception of the Geological Survey of Western Australia (GSWA) in 1896. In this second joint publication |  | | Report (edition) | | Stocklmayer GEOLOGICAL SURVEY OF WESTERN AUSTRALIA Gemstones of Western Australia FRONTISPIECE Euhedral black... MINERAL RESOURCES BULLETIN 25 GEMSTONES OF WESTERN AUSTRALIA by J Michael Fetherston, Susan M Stocklmayer...Stocklmayer Perth 2013 GEOLOGICAL SURVEY OF WESTERN AUSTRALIA MINISTER FOR MINES AND PETROLEUM Hon. Norman...EXECUTIVE DIRECTOR, GEOLOGICAL SURVEY OF WESTERN AUSTRALIA Rick Rogerson REFERENCE The recommended reference...VC 2013, Gemstones of Western Australia: Geological Survey of Western Australia, Mineral Resources Bulletin |  | | Journal (article/letter/editorial) | | found at the Wisdom Ranch beryl prospect, Larimer County. Elsewhere in the western United States, chrysoberyl...produced small chrysoberyl crystals associated with beryl crystals that locally reach 35 cm in length. Chrysoberyl...Alaotra area, and elsewhere in Madagascar; Dowerin, Western Australia; and the Hyderabad area, Andhra Pradesh...11:351-60. Heinrich, E. W., and S. H. Buchi. 1969. Beryl-chrysoberyl-sillimanite paragenesis in pegmatites...Classic mineral localities of the world-Asia and Australia. New York Van Nostrand Reinhold. Sinkankas, J |  | Beurlen, H., Thomas, R., Melgarejo, J. C., Da Silva, J. M. R., Rhede, D., Soares, D. R., Da Silva, M. R. R. (2013) Chrysoberyl-sillimanite association from the Roncadeira pegmatite, Borborema Province, Brazil: implications for gemstone exploration. Journal of GEOsciences, 58 (2) 79-90 | Journal (article/letter/editorial) | | metamorphic–metasomatic origin of the chrysoberyl by the reaction Beryl + albite + muscovite + H+ = chrysoberyl + quartz...beryllium minerals in pegmatites are the silicates beryl and, rarely, phenakite, along with rare phosphates...(1964) as a string of cassiterite-, columbite- and beryl-bearing pegmatite lenses usually less than two meters...(2005), the Roncadeira pegmatites belong to the beryl type of the rare-element class (Beurlen et al. 2008)...dominant minerals of economic interest (cassiterite, beryl and columbite–tantalite group minerals) earlier |  | | Journal (article/letter/editorial) | | in the geologic record is 3000 million years for beryl and emerald (Figs. 1, 2), over 1500 million years...necessary for the more common Be minerals, notably beryl, to appear, for example, 70 parts per million in...the Pilbara (Fig. 1) and Yilgarn Cratons, Western Australia (e.g., Sweetapple & Collins 2002; Jacobson...oldest reported Be minerals are beryl and phenakite from southern Africa. Beryl is reported in pegma tes coeval...2640 2649 million years in age, Yilgarn craton, Australia (Downes & Bevan 2002). However, two Be silicates |  | | Journal (article/letter/editorial) | | i Pilbara (figur 1) og Yilgarn Cratons, Vest-Australia (f.eks. Sweetapple & Collins 2002; Jacobson et...gneis 2640 l 2549 millioner år i Yilgarn Craton i Australia (Downes & Bevan 2002). 1) Metamorfiske og metasoma...Chrysoberyl, beryl and zincian spinel mineraliza on in granulite-facies Archaean rocks at Dowerin, Western Australia...the Napier Complex in Khmara and Amundsen Bays, western Enderby Land, East Antarc ca. Polar Geoscience...to the Pegma tes of Western Australia. Hesperian Press, Carlisle, Western Australia. JOHNSON, S.P., DE |  | | Journal (issue) | | in the geologic record is 3000 million years for beryl and emerald (Figs. 1, 2), over 1500 million years...necessary for the more common Be minerals, notably beryl, to appear, for example, 70 parts per million in...the Pilbara (Fig. 1) and Yilgarn Cratons, Western Australia (e.g., Sweetapple & Collins 2002; Jacobson...oldest reported Be minerals are beryl and phenakite from southern Africa. Beryl is reported in pegma tes coeval...2640 2649 million years in age, Yilgarn craton, Australia (Downes & Bevan 2002). However, two Be silicates |  | | Journal (issue) | | i Pilbara (figur 1) og Yilgarn Cratons, Vest-Australia (f.eks. Sweetapple & Collins 2002; Jacobson et...gneis 2640 l 2549 millioner år i Yilgarn Craton i Australia (Downes & Bevan 2002). 1) Metamorfiske og metasoma...Chrysoberyl, beryl and zincian spinel mineraliza on in granulite-facies Archaean rocks at Dowerin, Western Australia...the Napier Complex in Khmara and Amundsen Bays, western Enderby Land, East Antarc ca. Polar Geoscience...to the Pegma tes of Western Australia. Hesperian Press, Carlisle, Western Australia. JOHNSON, S.P., DE |  | Merino, E., Villaseca, C., Orejana, D., Jeffries, T. (2013) Gahnite, chrysoberyl and beryl co-occurrence as accessory minerals in a highly evolved peraluminous pluton: The Belvís de Monroy leucogranite (Cáceres, Spain) Lithos, 179. 137-156 doi:10.1016/j.lithos.2013.08.004 | Journal (article/letter/editorial) | | elsevier.com/locate/lithos Gahnite, chrysoberyl and beryl co-occurrence as accessory minerals in a highly...Keywords: Peraluminous granites Gahnite Chrysoberyl Beryl Montes de Toledo batholith Iberian Hercynian Belt...t Gahnite (ZnAl2O4), chrysoberyl (BeAl2O4) and beryl (Be3Al2Si6O18) have been found as accessory minerals...preferential crystallization of gahnite + chrysoberyl or beryl + chrysoberyl assemblages in mm-sized microdomains...of gahnite (Zn-rich hercynite), chrysoberyl and beryl is uncommon in igneous rocks. This mineral association |  | | Journal (issue) | | 145-155 Figure 5: Inclusions of of . prismatic beryl crystals with orientations orientationsdifferent...have been been trapped trapped in the prismatic beryl. beryl. Immersion, (a) (a) in plane-polarized light...representing slightly uneven undulating planes within the beryl (Figure4). 4).The Therough roughcrystal crystalshowed...was close or identical to that of of the host beryl and, thus, the single prisms difficult to observe...these inclusions were identified identified as beryl with an orientation different different from that |  | | Journal (article/letter/editorial) | | latecomers in the geologic record: the oldest known is beryl in pegmatites associated with the Sinceni pluton...appearance of the most abundant Be minerals, such as beryl and phenakite, early in the history of Be mineralization...complexes, supercontinent cycle, crystal structure, beryl Introduction Minerals are conventionally thought...necessary for the more common Be minerals, notably beryl, to appear, for example, 70 ppm in granitic pegmatites...Bearsite Behoite Berborite Bergslagite Bertrandite Beryl Beryllite Beryllonite Bityite Bohseite Bromellite |  | | Journal (issue) | | October 1999 ISSN: 1355-4565 Synthetic red beryl from Russia Ulrich Henn 1 and Claudio C. Milisenda...typical inclusion pattern. Keywords: synthetic red beryl, hydrothermal growth, Russian production, physico-chemical...purposes which have resulted in a number of synthetic beryl varieties. vanadium, manganese, cobalt and nickel...synthetic beryls which consist of a synthetic pinkish beryl core and a synthetic emerald overgrowth (Koivula...(1978) and Ilyin et al. (1980) reported on synthetic beryl varieties Introduction C ommercial quantities |  | | 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...Russia, and China), and Australia. The major sources for diamonds were Australia, central and southern...Canada. Cultured pearls from French Polynesia, Australia, and China became increasingly important, as production...(southern Africa, South Asia, Southeast Asia, Australia, South America). Although there has been some...the areas omitted (e.g., Russia, North America, western Africa, and China), they were less significant—in |  | | Report (issue) | | MINES. N1S K l t A 1, RESOURCES OF ’CTESTERN AUSTRALIA. BULLETIN KO. 2. BY R. S. MATHESON BSc. GEOLOGICAL...Matheson) ... ... lalyup (by R.C. Wilsonj ica and Beryl near Kirup artha, Oliver‘s P.A. 486H (by R. C‘.... Foxall) ... ... ... ... ... Felspar, Nica and Beryl- Rearing Pegmatites of the Balingup District (by...67 (i!) PLANS. Phte. il a I. Map of TTesterii Australia, hhov i q g 1,ocahties of P r t n c i ~ t ~ Jiii...inthiitries, there has been a n increasing demand in Australia f o r clear ;incl coinmercial clear sheet mica |  | | Journal (issue) | | He began purchasing gems during port visits to Australia, India, and Ceylon (now Sri Lanka), and even designed...drilling of diamonds Treated pink diamonds Maxixe blue beryl Gilson synthetic opal Yellow conch pearl Taaffeite... the laboratory staff was shown some dark blue beryl that Crowningshield and Nassau were able to confirm...having the same properties as the so-called Maxixe beryl, a material first found in 1917 in Brazil that faded...or across the land route through Alexandria to Western Europe and then were set in this medieval book |  | | Journal (issue) | | Chattanooga, Tennessee A. J. A. (Bram) Janse Perth, Australia Michael S. Krzemnicki Basel, Switzerland Christopher...diamonds (0.51 and 0.55 ct) from the Argyle mine in Australia were part of the 2007 Argyle pink diamonds tender...channel in 1996, when its Argyle operation in Australia ended its sales agreement with the DTC (Shor,...gems—cut supplies of Myanmar’s ruby and jade in Western markets to virtually nothing. This was particularly...(Laurs, 2009) following a 1999 discovery in the western part of that country. Large-Scale Mining Operations |  | Konzett, Jürgen, Schneider, Tobias, Nedyalkova, Latina, Hauzenberger, Christoph, Melcher, Frank, Gerdes, Axel, Whitehouse, Martin (2018) Anatectic Granitic Pegmatites from the Eastern Alps: A Case of Variable Rare-Metal Enrichment During High-Grade Regional Metamorphism – I: Mineral Assemblages, Geochemical Characteristics, and Emplacement Ages. The Canadian Mineralogist, 56 (4) 555-602 doi:10.3749/canmin.1800008 | Journal (article/letter/editorial) | | quartz-K-feldspar-plagioclase-muscovite) together with minor beryl, garnet, or tourmaline. In addition, accessory phase...pegmatites have staurolite as inclusions in large beryl crystals and/or as a groundmass phase. Muscovite...the Eastern Alpine pegmatites contain spodumene 6 beryl 6 Nb-Ta-Sn oxides (Angel & Meixner 1953, Sassi 1969...the Texel Complex, which represents one of the western sections of the Eastern Alpine basement nappe system...tourmaline assemblages and rare K-feldspar, garnet, and beryl. Three out of 53 pegmatites surveyed by Sassi (1969) |  | | Journal (issue) | | Jacob Andy Shen San Diego, California Sydney, Australia Wuhan, China Edward W. Boehm A.J.A. (Bram)...Guanghai Shi Chattanooga, Tennessee Perth, Australia Beijing, China James E. Butler Mary L. Johnson...gem corundum in alkali basalts as in eastern Australia, and sapphire in lamprophyre and syenite as in...placers related to alkali basalts, as in eastern Australia or southern Vietnam, while placers in metamorphic...rocks (China, Canada, Norway, Kazakhstan, and Australia) and Type IC in granitic rocks (Nigeria) are of |  | | Journal (issue) | | also been observed in this mine: garnet, fluorite, beryl , apa• tite, molybdenite, magnetite, pyrrhotitc...Wod1ina District in Western Aultralia This is one of the best garnet districts in Australia and is active...today. It is in the Northwest Division of Western Australia and is roughly a circle with a diameter of...Wodgina is the premier tantalum dis. trict of Australia. The Australian government is now stockpiling...~~ s· a-·•· > .;; Q.., ~ g_ ;;· :J C: AUSTRALIA SCAlf 0, MllfS 9 50 Q) zoo .IOO :x, soo |  | | Book (edition) | | 1020° 0.15± 0.23± 3.98 3.94 Sonora Spain Australia Saxony o N (Na) 1 N (Li) 3 % FeS 955° 919°...Fluoresces in ultra-violet rays. pegmatite in Western Australia, Brazil, and Rhodesia. COLUMBITE Orthorhombic...Bowley and L. E. R. Taylor: Jour. Roy. Soc. W. Australia, XXV, 89 and 93 (1939). P. F. Kerr and R. J....pegmatite, and in placers, as at Greenbushes, Western Aus¬ tralia; Varutrask, Sweden; Topsham, Maine;...product of molybdenite. Found at Mulgine, West Australia. Ransomite 4 * [CuFe'"2(S04)4-7H20] is orthorhombic |
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Dowerin Chrysoberyl pit, Dowerin, Dowerin Shire, Western Australia, Australia