Archive for Newsletter

ICGL Newsletter Autumn 2013

Posted on 2013/11/09 by

New issue of ICGL newsletter is released on 9th November 2013.

PDF version can be downloaded from next link.

ICGLNewsLetter-2013AU (801Kb)

 

 

The contents;

Albite feldspar carving imitating jadeite-jade

By Tay Thye Sun (1), Wilawan Atichat (2) and Gao Yan (3)

(1) Far East Gemological Laboratory, Singapore
(2) Former GIT director, the Gems & Jewelry Institute of Thailand, Bangkok, Thailand
(3) Former senior gemologist, National Gem Testing Centre, Beijing, China

AGIL Hong Kong celebrates 30th Anniversary

By Dominic Mok, Principal, Asian Gemmological Institute and Laboratory, Hong Kong

Gemstone Industry and Laboratory Conference (GILC) Hong Kong 2013

By Tay Thye Sun and Loke Hui Ying, Far East Gemological Institute Pte Ltd, Singapore

Detection of heat treatment in red spinel using photoluminescence

By Masaki Furuya (1), Masanobu Suzuki (1) and Aya Nakajima (2)

(1) Japan Germany Gemmological Laboratory, Kofu, Japan
(2) Aya Co, Ltd. Tokyo, Japan

Association Francaise de Gemmologie Celebrates Golden Jubilee

By Elisabeth Strack, Gemmologisches Institut Hamburg, Germany

Introducing Founding Member 003:

Tay Thye Sun at Far East Gemological Laboratory

 

No comments Posted in Newsletter, Voice from members

ICGL Newsletter Summer 2013

Posted on 2013/08/19 by

New issue of ICGL newsletter is released on 19th August 2013.

PDF version can be downloaded from next link.

ICGLNewsLetter-2013SU (8.9Mb)

 

The contents;

Identification of polymer impregnated quartzite imitating B-jade and B+C-jade

By Tay Thye Sun and Loke Hui Ying, Far East Gemological Institute Pte Ltd, Singapore

Infrared Reflection Spectra of Jadeite, Omphacite, Nephrite and Idocrase

By Dominic Mok – Principal Gemmologist of the Asian Gemmological Institute and Laboratory Ltd, Hong Kong

64th De Beers Diamond Conference,United Kingdom

By Jayshree Panjikar

Glass imitation sold as Zultanite in Turkey

By Elisabeth Strack, Gemmologisches Institut Hamburg

Introducing Founding Member 002:

Asian Institute of Gemmological Sciences

 

No comments Posted in Newsletter, Lab Notes, Lab Reports

ICGL Newsletter Spring 2013

Posted on 2013/05/17 by

ICGL second newsletter is released on 17th May 2013.

PDF version can be downloaded from next link.

ICGLNewsLetter-2013SP (6.7Mb)

 

The contents;

We connect… (Message from ICGL first president)

By Mr. Tay Thye Sun, President

New Members are welcome at ICGL

by Jayshree Panjikar, Membership Coordinator

A Rare Necklace with Maona Pearls

By Elisabeth Strack, Gemmologisches Institut Hamburg

Tucson 2013: A Reflection on Pearl Issues

By Elisabeth Strack, Gemmologisches Institut Hamburg

Spectroscopic Characteristics of “Merelani Mint” Grossular Garnet

By Masaki Furuya Japan Germany Gemmological Laboratory, Kofu, Japan

LAB NOTES:
Identification of Mysterious Large “Black Stone”

By Branko Deljanin, Canadian Gemological Laboratory
Bear Williams, Stone Group Labs

 

No comments Posted in Newsletter, Lab Notes

ICGL Newsletter Winter 2013

Posted on 2013/02/25 by

ICGL first newsletter was released at Tucson Gem show 2013.

PDF version can be downloaded from next link.

ICGLNewsLetter-2013WN (3.3Mb)

 

The contents;

International Consortium of Gem testing Labotories

By John Richoz,
Asian Institute of Gemological Sciences, Bangkok, Thailand

Screening and identification of diamonds for the synthetic origin using the uv lamp and the polarioscope mounted on a microscope

By Branko Deljanin, B.Sc., GG, FGA, DUG
Canadian Gemological Laboratory inc, Vancouver, Canada

Identification of natural, treated, synthetic and treated-synthetic yellow sapphire by feather type inclusions

By Jayshree Panjikar
Pangem Testing Laboratory, PANGEMTECH – Panjikar Gem Research & Tech Institute, Pune, India

Trading of Jadeite-Jade in Mandalay, Myanmar

By Tay Thye Sun & Tay Kun Ming
Far East Gemological Laboratory, Singapore

 

 

 

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