 |
|
Vol 23 Number 1, Jan - Mar 2007
(follow link to expand)
|
BLUE AND PINK OPALS FROM ACARI,
PERU |
A. Brajkovic,
V. Rolandi, P. Vignola, R. Grizzetti |
|
FROM THE LABORATORY |
Tay Thye Sun |
|
LETTER TO THE EDITOR |
The GIA Diamond Cut Group, The Cut Group |
|
KRÜSS HA10 HEARTS AND ARROWS
LOUPE |
T. Linton, K. Hughes, R. Beattie |
Vol 23 Number 2, Apr - Jun 2007
(follow link to expand)
|
SPODUMENES FROM NURISTAN,
AFGHANISTAN |
L. Natkaniec-Novak |
|
SEALANT IMPREGNATED RUBIES |
G.M. Pearson |
|
AGIL REFRACTOMETER & LED LIGHT
SOURCE |
T. Linton, R. Beattie |
|
IDENTIFYING GEMSTONES USING
FTIR SPECTRA |
Li Jianjun, Luo Yueping,
Chen Zhenyu, Meng Lijuan |
|
DETERMINING OPAL'S DENSITY |
A. Hodgkinson |
|
NOTES FROM THE GSL LABORATORY |
B. Sechos |
|
MOLDAVITE: NATURAL OR
IMITATION? |
Tay Thye Sun |
|
CIRCLED PIG'S TUSKS |
W.R. Mann, G. Brown,
M. Mahoney |
|
AGIL PORTABLE LAB SET |
T. Linton, R. Beattie |
Vol 23 Number 3, Jul - Sep 2007
(follow link to expand)
|
RUBY SUITES FROM NEW SOUTH
WALES |
G. Webb |
|
LESSONS FROM THE HISTORY OF
GEMS |
Dr D. Hoover |
|
GRAPHITIC INCLUSIONS IN
NATURAL BROWN DIAMONDS |
A.S. Bidny, O.V. Kononov, A.G. Veresov, P.V.
Ivannikov |
|
LUNE RIVER PETRIFIED FERNS |
R. Jones |
Vol 23 Number 4, Oct - Dec 2007
(follow link to expand)
|
Magnetic Susceptibility for Gemstone Discrimination |
Dr D. Hoover, B. Williams |
|
Opal Exploration Using Natural Gamma Radioactivity |
B. R. Senior, L. T. Chadderton |
LED Lightsources and gemmological
instruments that analyse colour |
T. Linton |
|
Vol 23 Number 5, Jan - March 2008
(follow link to expand)
|
ARGYLE TYPE 1A PINK DIAMONDS |
V. Rolandi, A. Brajkovic,
I. Amado, I. Fontana |
|
SPECTROPHOTOMETRIC TECHNIQUE
FOR GEMSTONE COLOURS |
G. Pearson |
|
DIAMOND'S HARDNESS |
R. Cartier |
|
FUNDAMENTALS OF NATURAL
DIAMOND ENHANCEMENT |
T. Linton |
|
GROWTH LINES AND LIQUID
INCLUSIONS IN TOPAZ |
A. Hodgkinson |
|
FROM A SINGAPOREAN GEM
LABORATORY |
Tay Thye Sun |
|
HANNEMAN-HODGKINSON JADEITE
FILTER |
A. Hodgkinson |
|
AGIL ILLUMINATION LOUPE |
T. Linton |
Vol 23 Number 6, April-June 2008
(follow link to expand)
|
BLACK
OPAQUE GEM MINERALS |
S. Saminpanya, F.L. Sutherland |
|
THE
THERMAL COLOUR CHANGE OF TANZANITE |
G. Pearson |
|
OPAL-C,
OPAL-CT & OPAL-T FROM ACARI, PERU |
F. Caucia, C. Ghisoli, I. Adamo, M. Boiocchi |
|
STELLER'S
SEA COW BONE |
B. Mann, G. Brown |
|
THE
SPOONMAKER'S DIAMOND |
M. Hatipoglu, I. Meyanci, C. Turkdofan, D.
Comert, O. Temal |
|
LAB REPORTS |
R. Bauer, C. Payne |
|
DIAMOND'S
HARDNESS |
R. Cartier |
Vol 23 Number 7, July - September
2008 (follow link to expand)
|
Cultured freshwater pearls from the Yangtze River (China) |
Magdelana Dumańska-Slowik, Wieslaw Heflik,
Lucyna Natkaniec-Nowak, Magdalena Sikorska, Aleksandra Weselucha-Birczyńska |
|
Historical extracts from "The Gazetteer" of the Upper Burma and the Shan
States |
As selected by Professor (Retired) of Geology,
(Pin Long University) U.Tin Hlaing |
|
Images from the Outback "Super" Conference |
|
|
A photoessay on Tanzanian Star sunstone |
Grant Pearson |
|
Notes from the laboratory - Anglesite - An unusual collector's gemstone |
Gagan Choudhary, FGA and Chaman Golecha, FGA |
|
Note from the laboratory -
Yttria-stabilized Zirconia & Hemisphere apparently imitating a "Mabe" pearl |
Taijin Lu, Ph.D., Yusuke Mizukami, G.G.,
Kazuyoshi Yasunaga, G.G., Tatsuya Odaki, G.G., and Hajime Uesugi, G.G. |
Vol 23 Number 8, October - December
2008 (follow link to expand)
|
ODONTOLITE |
Bobby Mann, Brian Jackson, Dr. Grahame Brown (dec) |
|
A COLOURLESS NATURAL DIAMOND
SHOWING STRONG ORANGE AND MIXED COLOURED FLUORESCENCE IMAGES |
Taijin Lu Ph.D., Tatsuya Odaki G.G., Kazuyoshi
Yasunaga G.G. and Hajime Uesugi G.G. |
|
THE UPPER BURMA RUBY
REGULATION OF 1887 |
U Tin Hlaing |
|
HACKMANITE, TUGTUPITE AND
AFGHANITE TENEBRESCENCE AND FLUORESCENCE OF SOME SODALITE RELATED MINERALS |
John Tunzi, Grant Pearson |
|
ACCOUNT OF THE 1968 INSPECTION
AND AUTHENTICATION OF THE KASIKCI OR SPOONMAKER'S DIAMOND |
Asst. Prof. Dr Murat Hatipoglu |
|
ECONOMY STEREO ZOOM
MICROSCOPES |
Trevor Linton, Anne Paul, Roy Beattie |
Vol 23 Number 9, January - March
2009 (follow link to expand)
Grahame Brown
Memorial Issue Part One
|
List of Published Works |
|
|
Some personal reminiscences |
Various |
|
THE many facets of grahame
brown |
Photo montage |
|
sapphire-ruby characteristics
west pailin cambodia |
F.L. Sutherland, G. Guiliani, A.E. Fallick, M.
Garland, G. Webb |
|
blue fluorescence in diamonds |
G. Holloway |
|
opal similarities between
andamooka and coober pedy south australia |
L.J. Townsend |
|
nature and origin of the
orbicular granodiorite from boogardie station western australia |
J. Bevan, A. Bevan |
|
precision instrument
readability your sg value may not be as good as you think it is |
G. Pearson |
Vol 23 Number 10, April - June
2009 (follow link to expand)
Grahame Brown
Memorial Issue Part Two
|
THE RADIOPACITY OF SOME COMMON
GEM MATERIALS |
G. Brown, A.J. Moule and R.L. O'Neil |
|
LARGE BRAZILIAN DIAMONDS |
Dr. D.B. Hoover, Dr. J. Karfunkel |
|
OPTICAL PHENOMENA IN GEMSTONES |
Richard Cartier |
|
QUAHOG PEARLS - AMONGST
NATURES RAREST BEAUTIES |
Antoinette Matlins |
|
A STUDY OF ZIRCON FROM
TANZANIA - MALAYA ZIRCON |
Dr. Ulrich Henn |
|
METEORITES: ORIGINS,
PROPERTIES AND GEMMOLOGICAL SIGNIFICANCE |
Grant Pearson |
LETTER TO THE EDITOR:
UPDATE ON CHINESE FRESHWATER CULTURED PEARLS AND THEIR RAMAN SPECTRA |
Dr. Stephanos Karampelas |
Vol 23 Number 11, July - September
2009 (follow link to expand)
Grahame Brown
Memorial Issue Part Three
(also included as a separate special issue: Rare Ivories - Grahame Brown)
|
WORKING THE BLUE SEAM - THE
TANZANITE MINES OF MERELANI |
V. Pardieu, R. Hughes, G. Soubiraa, M.
Rodgers, W. Chitty, M. Chitty, P. Brunot |
|
AQUAMARINE - NATURAL OR
SYNTHETIC? |
A. Hodgkinson |
|
THE GENETIC APPROACH FOR
IDENTIFICATION OF VARIETIES OF CRYSTALLINE AND AMORPHOUS SILICA |
V.S. Balitsky, O.V. Balitskaya |
|
MICRO-MAGMA CHAMBERS IN
NATURAL RUBIES AND SAPPHIRES |
J. Koivula |
|
PRECIOUS OPAL FROM JAVA |
T.S. Tay, P.C. Mok, S.L. Paul, M. Paramita,
C.E.S. Arps, W. Atichat, E. Fritsch, W.W. Kang, K. Wijaya |
|
PRESIDIUM GCG AND C-MASTER GEM
CALCULATORS |
T. Linton and C. Curtis |
Vol 23 Number 12, December
2009 (follow link to expand)
|
ARGYLE TYPE 1A BROWN DIAMONDS
GEMMOLOGICAL PROPERTIES, FTIR, UV-ViS, CL AND ESR FEATURES |
A. Brajkovic, V. Rolandi, R. Scotti |
|
DIFFERENTIATION OF NATURALLY
COLOURED AND ARTIFICIALLY IRRADIATED BLUE TOPAZ SPECIMENS |
Y. Song, X. Yuan |
|
ZULTANITE, OR COLOUR-CHANGE
DIASPORE FROM THE MILAS (MUGLA) REGION, TURKEY AND EDITORS ADDENDUM |
M. Hatipoglu, M. Akgun |
|
ANCIENT DEPOSIT OF BLUE
CHALCEDONY IN TURKEY |
M. Hatipoglu, S. Chamberlain |
|
LASER INSCRIPTION ON DIAMONDS |
R. Bauer |
|
PREVENTION OF CRACKING IN
ETHIOPIAN OPAL |
S. Filin, A. Puzynin |
|
SCARSELLI EXHIBIT OF NATURALLY
COLOURED DIAMONDS AT THE AMERICAN MUSEUM OF NATURAL HISTORY |
J. Shelby |
