 | | 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) | | This article was downloaded by: [The Aga Khan University] On: 24 November 2014, At: 05:18 Publisher:...Stanford, California 94305 Downloaded by [The Aga Khan University] at 05:18 24 November 2014 Abstract...terrane. The arc terrane contains more extensive chromite deposits than does the basinal terrane. Arc chromites...place prior thys. However, the ophiolites on the western marto continental collision (Mahmood et al., 1995;...0020-6814/99/403/739-25 $10.00 739 Downloaded by [The Aga Khan University] at 05:18 24 November 2014 740 AHMED |  | | Report (issue) | | Asia: Pakistan, Afghanistan and India .......6 0 Old Mine Emeralds . . . . . . . . . . . . . . . . . . . ...intensely colored materials in the world. ... To the Western Middle Ages Many theologians of the early middle...Maharajahs and Maharanis held large emeralds (see "Old Mine Emeralds" page 62). The Color of Islam Emerald...Pedro I of Brazil to the 6 th Duke of Devon- shire. Also housed here are a number of large cut emeralds...879), trapiche emeralds are found only in the western emerald zone in the Muzo Coscuez-Pefias Blancas |  | | Journal (issue) | | microprobe JEOL JXA-8600. Emerald occurrences in Australia, Brazil, Mozambique, Russia, Tanzania (Lake Manyara)...micas, talc, pyrophyllite, chlorite, wollastonite, chromite, calcite, dolomite, Fe-oxide, apatite, quartz...from eleven gem-mining regions in Afghanistan, Australia, Brazil, Colombia, Mozambique, Nigeria, Russia...6 zambia, Kitwe (in bluish-green emerald) 7 Australia, Pool 8 Mozambique, Santa Maria ...based on stoichiometry. Emerald occurrences in Australia, Brazil, Mozambique, Russia, Tanzania (Lake Manyara) |  | | Journal (issue) | | Production: Chantaburi, Thailand Goober Pedy, Australia-the Mining of Opals ToLl rl,, aline Deposits of...supervisor; in most cases, this is the owner of the mine. LAPIDARY TREATMENT Cutting is done by means of...that may be present in the stone's visible spectrum cue seen. at their sharpest. The stone is held in soft...heat treating corunduml inasmuch as Sri Lanlza) Australia, and Hong Kong have treatment operations as well...Lanlza) Thailand, Cambodia, Burma) Kashmir, or Australia). In general) i t is easier to deepen the color |  | | Report (issue) | | Electrical-grid diagram for Afghan electric grid-F, Western Power System, Herat, Afghanistan, with imported...East Power System, South East Power System, and Western Power System in Afghanistan, showing power generation...electrical power in the SEPS is highly uncertain. The Western Power System (WPS), serving Herat and surrounding...the same condition in which it is removed from the mine, the value chain has only three basic steps, as...injuries of dozens of workers in two separate a mine explosions in Samangan Province (Rahimzai, 2013; |  | | Book | | be said that, for hundreds of years, very few Western scholars greeted with such incredulity, since...magnificent gem thar is currently the third-largest cue diamond in ex:istence. It is owned by Premier Gem...Oppmheimer diamond, 253.7 carats, fuund in the Duwirspan mine, Kimberley. It is one of the most beautiful uncur...shown here being hdd by the direcmr of 1he Premier mine, William McHardy, on the day of its discovery. On...president of die mine company. De Beers Archives, Kimberley. carats, found in the Duroitspan mine, Kimberley |  | | Book | | of the Stone in Myth and in Rock 9 3 From Mine to “Mine”: The Emerald Business 21 4 Emeralds in World...John) is one of the most mysterious figures in Western myth. His ancestry is uncertain, but some claim...could identify the country and sometimes the actual mine a particular stone came from. However, vaporizing...of some ocean. The glorious emeralds of the Muzo mine of Colombia are embedded in calcite veins found...chromium needed for emerald, was washed off the western coast of the continent to collect on the sea floor |  | | Journal (issue) | | Abduriyim Tokyo, Japan A. J. A. (Bram) Janse Perth, Australia Mark Newton Coventry, UK Shigeru Akamatsu Tokyo...efforts and promising early results, the emerald mine has not yet begun production. 2 GEMS & GEMOLOGY...deposit is located near the Bonfim gold-tungsten mine (figure 2), at coordinates 05°50.45¢S, 036°07.10¢W...basement gneiss, close to the Bonfim goldtungsten mine, which is hosted by metasedimentary rocks. Modified...collected by author JCZ during his visit to the mine. Parallel plates were cut and polished from three |  | | Journal (issue) | | >lmersham UK Sales Aylesbury (0296) 395222 Amersham Australia PTY Ltd Sydney 888-2288 Amersham Belgium SA/NV...Rest of Europe Airspeed £125 USA & Canada US$275 Australia & NZ Airspeed £150 Airmail £195 S, Africa Surface...800-843-1412 Also in Rockville Centre, NY; Hornsby, Australia; Vienna, Austria: Brussels, Belgium; Mississauga...id f Head office Sweden Tel 46 (018) 163000. Australia Tel (02) 8883622. Austria Tel (0222) 6866250 Belgium...must be the fullest appointments diary in the Western world, not to mention side-trips to Japan, China |
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