 | | Journal (article/letter/editorial) | | Metal Pegmatites in the North Pilbara Craton, Western Australia MARCUS T. SWEETAPPLEâ AND PETER L. F. COLLINS...of Technology, GPO Box U1987, Perth, WA 6845, Australia Abstract The Pilbara pegmatite province in the...giant Mount Cassiterite tantalum orebody in the Wodgina pegmatite district. Generally, rare metal pegmatites...boundaries. All of the major tantalum deposits (Wodgina, Mount Cassiterite, Tabba Tabba, Strelley, Pilgangoora)...ARCHEAN North Pilbara Craton in northwestern Australia (Fig. 1) is one of the worldâs major tantalum |  | | 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 |  | | 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 (issue) | | extraLapis English No. 2: Emerald The Most Valuable Beryl The Most Precious Gemstone Publisher Lapis International...ISBN 3-921656-58-3 Emerald The Most Valuable Beryl; the Most Precious Gemstone ------------ extraLapis... USA About Emeralds Emeralds· of the World Beryl and Emerald: Words from India ......4 A brief etymology...Mineralogically a Beryl ........10 Composition, structure, crystal habit, green beryl and trapiche emerald...without the base measures 16 x 14 cm. The crystal group is not natural but a montage stuck together with |  | | Book | | world mineralo- authority provides cultural beryl: and mineral collectors. here sciences, yet...material causes of to jewelry on the and beryl uses the techno- fora mineral only for and...cultural mineralogical once events. languages for beryl emerald logical to and part, Sinkankas explores...jewelsâand relatives, beryl is a of the ago, the fabled Table golden beryl medicine years of...Queen 5500 Egypt the part is anywhere an beryl deposits, of fine crystal Sinkankas has in the |  | | Book (edition) | | to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other...site occupancy. The Sb members of the tennantite group (2.G) will serve as a good example: tetrahedrite...registered in this book (e.g. in the amphibole group). For more detailed information see "Dana's System...America and Greenland, then Europe, Asia, Africa, Australia, and Antarctica), then those of pegmatitic origin |  | | Report (issue) | | Beryl and Its Color Varieties Page 4 Mineralogy of Beryl and the Beryl Group William "Skip" Simmons...Peak of Colorado Beryl Collecting Mark I. Jacobson Page 14 Crystal Structure of Beryl and Pezzottaite...England Gem Beryl Bruce Jarnot Page 16 Bazzite of the Alps Stefan Weiss Page 32 Beryl from the Pegmatites...Page 22 Beryl Color Varieties William "Skip" Simmons and Alexander Falster Page 49 Gem Beryl from Russia...Breithaupt's Beryl Seal Mineralogist Friedrich August Breithaupt had his seal carved into a beryl crystal |  | | Journal (article/letter/editorial) | | depthâ. We list the general characteristics of each group in turn, and explain how petrogenetic processes...involve the breakdown of a hydrous phase like muscovite or biotite, or simply an adjustment in their composition...plagioclase + K-feldspar + muscovite + garnet + biotite ± apatite ± beryl ± tourmaline (Barr 1985); in...findings of Evensen & London (2002), the presence of beryl and tourmaline is a sign that the anatectic melts...sequence in the Broken Hill area, New South Wales, Australia. Here, the metasedimentary sequence has a volcanogenic |  | | Journal (article/letter/editorial) | | 26 March 2015 Reading Pegmatites: PART 1 What BERYL Says DAVID LONDON ConocoPhilips School of Geology...environment in which they form. The series begins with beryl (fig. 1). Some Definitions Many of the finest mineral...Crystals of beryl, including some important associations with other minerals. (a) Beryl variety aquamarine...specimen and photo. (b) Beryl variety aquamarine with spessartine on albite and muscovite, 11.5 Ă 11.0 Ă 7.0...Pakistan; Dan Weinrich specimen and photo. (c) Beryl variety morganite with âschorlâ on albite, 16.8 |  | NovĂĄk, Milan, Gadas, Petr, Filip, Jan, VaculoviÄ, TomĂĄĆĄ, PĆikryl, Jan, Fojt, Bohuslav (2011) Blue, complexly zoned, (Na,Mg,Fe,Li)-rich beryl from quartz-calcite veins in low-grade metamorphosed Fe-deposit SkĂĄly near RĂœmaĆov, Czech Republic. Mineralogy and Petrology, 102 (1) 3-14 doi:10.1007/s00710-011-0157-7 | Journal (article/letter/editorial) | | MINERALS Blue, complexly zoned, (Na,Mg,Fe,Li)-rich beryl from quartz-calcite veins in low-grade metamorphosed...Syn-tectonic quartz-calcite veins containing blue beryl are enclosed in hematite > magnetite-rich portions...Czech Republic. Aggregates of pale to deep blue beryl, up to 2 cm in diameter, are associated with euclase...dravite. Complexly zoned beryl crystals consist of skeletal aggregates of beryl I randomly distributed...volumetrically dominant beryl II with narrow rims of beryl III. All types of beryl have similar contents |  | Aurisicchio, Carlo, Conte, Aida M., Medeghini, Laura, Ottolini, Luisa, De Vito, Caterina (2018) Major and trace element geochemistry of emerald from several deposits: Implications for genetic models and classification schemes. Ore Geology Reviews, 94. 351-366 doi:10.1016/j.oregeorev.2018.02.001 | Journal (article/letter/editorial) | | In addition, the geochemical features of each group were linked to the geological environment and genetic... historians, and others. Emerald belongs to beryl-group minerals with general formula (Be3 Al2Si6O18)...rise to different varieties. More details about beryl structure are reported in numerous studies (Artioli...al., 1988, 2012). Emerald, the green variety of beryl, owes its color to the presence of Cr and/or V,...we try to link the geochemical features of each group to the geological environment and, in turn, to the |  | | Journal (article/letter/editorial) | | manganese-dominant and are thus hĂŒbnerite. Columbite-group minerals are common as well-formed crystals to approximately... quartz, microcline, albite, siderophyllite, muscovite, and possibly zinnwaldite. Additional rare phases...specimen is from the Red Lake mine near Balmerton in western Ontario. Rich specimens of gold in smoky quartz...other less well-developed forms. In rare cases, beryl (aquamarine or goshenite) has been observed. Late-stage...than 1 mm in size), associated with abundant muscovite, were observed in only one pegmatite. Beryllium |  | | Book | | prism (3 faces) pyramids rhombohedron apatite beryl, corundum calcite quartz tourmaline orthorhombic...prisms with inclined top and bottom faces gypsum muscovite augite triclinic pairs of faces albite anorthite... actinolite, andalusite, arfvedsonite, augite, beryl, bronzite, chlorite, cordierite, diallage, diopside...an emerald green variety of muscovite. Physical properties as for muscovite (No. 13). Rare. Specimen from...S. Africa, USA, Fig. 12 from S. Rhodesia. 13 Muscovite (Muscovy Glass, Common Mica, Potash Mica), KAl2(OH |  | | Book | | slow crystal growth are spectacular; in Brazil a beryl crystal weighing 200 tons (l79 tonnes) was found...and the sapphire, both members of the corundum group; rubies owe their colour to traces of chrome, while...glass-like, and is commonly found in quartz and beryl. A âresinousâ lustre is displayed by sulphur, whilst...in southern France, northern Spain and eastern Australia. These paints were made from ground and powdered...back of the book. Below each identifier entry is a group of symbols that indicate specific the hardness |  | | Journal (issue) | | Texas Bill Birch Museum of Victoria Melbourne, Australia Michael P. Cooper Nottingham, England Anthony...to be produced, and superb examples o f elbaite, beryl, st microlite, topaz, zircon and other species are...volume 31, Novemher-December, 2000 Figure 2. Large beryl crystal embedded in the inner intermediate zone...Jazigos e Ocorrenqias Minerals, and other sources. Group 1: Mines: Muiane, Naipa, Maridge, Nanro, Nacuissupa...Nacuissupa, Nihire. Minerals: Tourmalines, beryl gems (1), beryl, manganotantalite, stibiotantalite, lithium |  | | Book | | Ian Graham The University of New South Wales Australia Editorial OfïŹce MDPI St. Alban-Anlage 66 4052...Continental Comparisons from Myanmar and Eastern Australia Reprinted from: Minerals 2019, 9, 28, doi:10.3390/min9010028...Sapphire in Newly Discovered SpinelâChloriteâMuscovite Rocks within Meta-UltramaïŹtes of Ilmen Mountains...University of New South Wales Sydney, Sydney, NSW, Australia, and a Distinguished Visiting Professor at the...University of New South Wales, Sydney, NSW 2052, Australia; i.graham@unsw.edu.au Correspondence: voudouris@geol |  | | 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...either from the CNMNC IMA or the RRUFF web sites). Group assignment is based largely on Back and Mandarino |  | | Thesis/Dissertation | | Sc- and Be-bearing minerals, comprising mica, beryl, gadolinite-(Y) and bazzite, have been studied from...occurs only in the wall zones of pegmatites, while beryl is found in the intermediate and albite replacement...of the beryl increases continuously whereas Fe decreases from early crystallized green beryl to late...late crystalized pink beryl (variety morganite). At regional scale, the distribution of Sc and Be across...become incorporated in gadolinite-(Y), mica, garnet, beryl and bazzite during final crystallization. Economic |  | | Journal (article/letter/editorial) | | 615 UNUSUAL (Na,Mg)-ENRICHED BERYL AND ITS BREAKDOWN PRODUCTS (BERYL II, BAZZITE, BAVENITE) FROM EUXENITE-TYPE...contains pale green prismatic crystals of primary beryl I, up to 3 cm long, arranged in radial aggregates...albite or K-feldspar. Beryl I is locally altered to the secondary mineral assemblage beryl II + bavenite +...yielded: slight indications of heterogeneity in beryl I, with high Na (0.20â0.32 apfu), Mg (0.24â0.38...% Cs2O), and very low Li (†80 ppm); secondary beryl II with high Na (0.24â0.34 apfu), low Fetot (0.03â0 |  | | Book | | , 1998). In October 1987, from a cleft on the western flank of the Tschingelstock, a few kilometers south...Ilmeny Mountains, specimens almost never reach Western mineral markets. However, in the summer of 2002...genthelvite and xenotime, which ~uickly reached the Western market-for a complete account of this remote and...l l ). AUSTRALIAand PACIFICISLANDS EUROPE AUSTRALIA GREECE Portland Harbor Trust quarry, Cape Grant...columnar crystals of hedenbergite. Around 1960. a group of collectors visited the mine. then temporarily |  | NovĂĄk, Milan, Filip, Jan, Gadas, Petr, GaliovĂĄ, Michaela VaĆĄinovĂĄ, PĆikryl, Jan, NovĂĄk, Milan, Filip, Jan, Gadas, Petr, GaliovĂĄ, Michaela VaĆĄinovĂĄ (2014) Iron+magnesium-bearing beryl from granitic pegmatites: an EMPA, LA-ICP-MS, Mössbauer spectroscopy, and powder XRD study. The Canadian Mineralogist, 52 (2) 271-284 doi:10.3749/canmin.52.2.271 | Journal (article/letter/editorial) | | 10.3749/canmin.52.2.271 IRON+MAGNESIUM-BEARING BERYL FROM GRANITIC PEGMATITES: AN EMPA, LA-ICP-MS, MĂSSBAUER...green, and green Fe,Mg-enriched beryl from Li-poor granitic pegmatites [beryl-columbite (LCT) pegmatites at...Austria; and a euxenite (NYF) pegmatite from the Beryl Pit, Quadeville, Ontario] were investigated using...ppm (Quadeville), Sc †2823 ppm (Val Sissone). Beryl samples have mostly comparable contents of Fe3+...T(2)-site. Primitive characteristics of some examined beryl (Mg/ (Mg+Fetot) = 0.37â0.68 reflect low degree of |  | Aurisicchio, C., Conte, A. M., De Vito, C., Ottolini, L. (2012) BERYL FROM MIAROLITIC POCKETS OF GRANITIC PEGMATITES, ELBA, ITALY: CHARACTERIZATION OF CRYSTAL CHEMISTRY BY MEANS OF EMP AND SIMS ANALYSES. The Canadian Mineralogist, 50 (6) 1467-1488 doi:10.3749/canmin.50.6.1467 | Journal (article/letter/editorial) | | 1467-1488 (2012) DOI : 10.3749/canmin.50.6.1467 BERYL FROM MIAROLITIC POCKETS OF GRANITIC PEGMATITES,...Ferrata 1, Iâ27100 Pavia, Italy Abstract Crystals of beryl from miarolitic pockets, hosted in pegmatitic dikes...substitution defined for the crystal chemistry of beryl. The following main features are illustrated: (1)...LCT host pegmatites. The presence of Ca in some beryl crystals in pegmatites emplaced in carbonate rocks...early-crystallized Fe-rich minerals. Keywords: beryl, EMPA and SIMS data, BSE images, X-ray maps, crystal |  | BaÄĂk, P., FridrichovĂĄ, J., Uher, P., RybĂĄr, S., BizovskĂĄ, V., LuptĂĄkovĂĄ, J., VrĂĄblikovĂĄ, D., PukanÄĂk, L., VaculoviÄ, T. (2019) Octahedral substitution in beryl from weakly fractionated intragranitic pegmatite PrednĂ© Solisko, Tatry Mountains (Slovakia): the indicator of genetic conditions. Journal of GEOsciences, 64 (1) 59-72 | Journal (article/letter/editorial) | | 272 Original paper Octahedral substitution in beryl from weakly fractionated intragranitic pegmatite...octahedral substitution role in particular, of beryl from weakly fractionated intragranitic pegmatite...(Slovakia) is described in detail. The studied beryl was found in granitic pegmatite derived from biotite...is ferric. The c/a ratio is typical of ânormalâ beryl but its low value suggests dominant octahedral substitution...fluid-rich genetic environment. The composition of beryl reflects the source rock of pegmatitic melt; I-type |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Base by Ernest H. Nickel, CSIRO, Wembley, WA, Australia, and Monte C. Nichols published by Aleph Enterprises...N SW, Australia. William D. Birch: Dept. of Mineralogy, Museum of Victoria, Melbourne, Australia. Frank...Pring: South Australian Museum, Adelaide, SA, Australia. Gunnar Raade: Mineralogisk-Geologisk Museum,...Species containing more than one anion or anion group may be assigned to a separate class or may be assigned...specifies the atomic (cation to anion, or to anion group) ratio for the mineral. This and the remaining numbers |  | | Journal (issue) | | Affiliated Associations: Genu:nological Association of Australia: Canadian Genu:nological Association: Rhodesian...(4) T h e relationship and/or distinction between beryl-producing pegmatites and emerald-producing pegmatites...e pegmatites contain spasmodic minor amounts of beryl and the lithium minerals, petalite and lepidolite...consisted of minor sericitized plagioclase feldspar, muscovite, quartz and opaque minerals. Samples of mica-rock...to 3 em wide carrying quartz, mica and euhedral beryl 426 J. Gemm., 1977, XV, 8 as grey-coloured hexagonal |
|
