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Vol 24 Number 1, January - March 2010
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FOREWORD
FROM THE FEDERAL PRESIDENT INTRODUCING THE NEW ag FORMAT |
Federal President
T. Coldham |
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the
argyle diamond mine in transition from open pit to underground extraction |
G. Bosshart and J.G. Chapman |
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RUBIES
AD SAPPHIRES FROM WINZA, TANZANIA - SUMMARY OF CHARACTERISTIC PROPERTIES AND
A SHORT UPDATE OF THE MINING SITUATION |
K. Schmetzer, W. Radl and D. Schwarz |
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differing
causes of colour in diamonds |
C. Payne and R. Bauer |
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the
31st gemmological conference |
T. Coldham and F. Payette |
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tanzanite
- naturally heat treated? |
T. Coldham |
Vol 24 Number 2, April - June 2010
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FEDERAL PRESIDENT's
report |
Federal President
T. Coldham |
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Microstructures
observed in andamooka matrix opal |
G. Pearson |
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a
study of prismatine from begogo, madagascar |
Dr Valentina Bordoni, Dr Massimo Boiocchi,
Pro. Franca Caucia |
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coated
and fracture-filled coloured diamond |
Song Zhonghua, Lu Taijin, Shen Meidong, Su
Jun, Dong Jing, Zhang Xihuan |
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a
chatoyant malachite |
Gagan Choudhary |
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cultj
diamond selector iiitm |
Trevor Linton and Anne Paul |
Vol 24 Number 3, July - September 2010
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MOOKAITE
- A WESTERN AUSTRALIAN ORNAMENTAL ROCK |
Susan and Vernon Stocklmayer |
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SPINELS
FROM YWATHIT DEPOSIT, KAYAH STATE, MYANMAR |
U Tin Hlaing, Wilawan Atichat and Chakkaphan
Sutthirat |
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LARGE
SYNTHETIC BLACK MOISSANITE ON THE AUSTRALIAN MARKET |
Bill Sechos |
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PRESIDIUM
MULTI TESTER |
Trevor Linton, Isobel Johnstone and Ken Hunter |
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CHRYSOBERYL:
A GEMSTONE WITH MANY FACES |
Henry A Hänni |
Vol 24 Number 4, October - December 2010
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Rio Tinto’s Argyle Pink Diamonds Tender Update |
Eleanor and Colin Sanders |
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Explaining the flame structure
of non-nacreous pearls |
H.A. Hänni |
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A greenish yellow zoisite |
Gagan Choudhary |
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DiamondNite Tester |
Trevor Linton, Anne Paul, Isobel Johnstone and Ken Hunter |
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Less frequently encountered
gemstones - Euclase |
Rod Brightman |
Vol 24 Number 5, January - March
2011
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TRIPHYLITE
FROM BRAZIL - A RARE COLOUR CHANGE STONE |
Dr
Kark Schmetzer, Dr Eric Erel |
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COMPARATIVE
STUDY OF DIFFERENT TYPES OF FILLED RUBIES |
Li Jianjun, Hao Wangjiao, Sun Yuan, Luo Han, Cheng Youfa, Liu Huafeng, Liu Ying, Fan Chengxing and Ye Hong |
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LESS
FREQUENTLY ENCOUNTERED GEMSTONES - RHODONITE |
Rod Brightman |
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A
DARK-FIELD SCOPE - INSTRUMENT EVALUATION COMMITTEE REPORT |
Trevor Linton, Anne Paul |
Vol 24 Number 6, April - June 2011
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NEW
GAA SUPPORTER PINS AVAILABLE |
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ALEXANDRITES
FROM NOVELLO ALEXANDRITE-EMERALD DEPOSIT MASVINGO DISTRICT, ZIMBABWE |
Dr
Karl Schmetzer, Susan Stocklmayer, Dr Vernon Stocklmayer and Anna-Kathrin
Malsy |
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THE
'HILL' OF PRECIOUS STONES, RATTANAK KIRI, CAMBODIA |
Francine
Payette, Grant Pearson |
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HAND
HELD POLARISCOPE |
Trevor Linton, Anne Paul |
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65th
ANNUAL GAA CONFERENCE |
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Vol 24 Number 7, Jul - Sep 2011
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SERPENTINE
CRYSTAL WITH PURPLE-RED TRANSMISSION |
Gagan
Choudhary |
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HIGH
QUALITY SYNTHETIC YELLOW ORANGE DIAMOND EMERGES IN CHINA |
Song
Zhonghua, Lu Taijin, Shen Meidong, Su Jun, Shang Jingjing |
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GEM-QUALITY
GREEN AND BLUE TOURMALINE FROM A COOLGARDIE PEGMATITE, WESTERN AUSTRALIA |
Francine
Payette, Dr Leonhard Klemm |
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LESS
FREQUENTLY ENCOUNTERED GEMSTONES - PAINITE |
Rod Brightman |
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