GAAJ-ZENHOKYO

	Research Lab. Report Radioactive natural stones 09.09.17
	Research Lab. Report Natural Omphacite 09.09.17
	Research Lab. Report A Mine Trip to Tibet and Inner Mongolia: Gemological Study of Andesine Feldspar 09.09.15
	Research Lab. Report Andesine mine of Tibet ＜Movie＞ 09.09.14
	Research Lab. Report Practicality of Colibri™,a diamond colour-grading product by Sarin 09.09.01
	Research Lab. Report Durability of significant fissure filled ruby with lead-glass 09.03.25
	Visit to andesine mines in Tibet and Inner Mongolia Gems & Gemology, Winter 2008, Vol. 44, No.4, pp. 369-379 Ahmadjan Abduriyim and Taisuke Kobayashi
	Research Lab. Report Coating Treatment on Zoisite (Tanzanite) 09.02.24
	Lab. Alert Black Moissanite 09.02.03
	Research Lab. Report Study of andesine from Tibet and Inner Mongolia of China 08.12.29
	Lab. Alert Lead glass filled Black Star Sapphire 08.10.30
	Identification of Melee-Size Synthetic Yellow Diamonds in Jewelry Gems & Gemology, Fall 2008, Vol.44, No.3 Hiroshi Kitawaki, Ahmadjan Abduriyim and Makoto Okano
	Identification of taaffeite and musgravite using a non-destructive single-crystal X-ray diffraction technique with an EDXRF instrument The Journal of Gemmology, 2008, Vol.31, No.1/2 Ahmadjan Abduriyim, Taisuke Kobayashi and Chihiro Fukuda
	Research Lab. Report New Geological Origin: Ruby from Winza of Tanzania 08.08.07
	Research Lab. Report Natural Zincite 08.07.11
	Research Lab. Report Rutilated Quartz Filled with Transparent Material (Oil / Resin) 08.06.20
	Research Lab. Report Cu-Bearing Synthetic Beryl in “Paraíba Colour” 08.06.20
	Research Lab. Report Synthetic opal called “MexiFire” and “PeruBlu” 08.05.29
	Research Lab. Report BLUE ARAGONITE 08.01.29
	Lab. Alert (Laboratory of the month) Treatment in Blue Sapphire [Up To Date] "Super Diffusion Tanusorn"filling treatment with cobalt-coloured lead glass 07.12.27
	Research Lab. Report Natural Johachidolite 07.11.30
	Notice of new office location:
	Research Lab. Report Identification of heated / unheated status on ruby and sapphire 07.02.13
	Research Lab. Report Detection of filling material in fissure and fracture of emerald 07.01.11
	Research Lab. Report New Coating Treatment on Diamond 07.01.06
	A report from lectures at “Gemmological Society of Japan" 2006 TAAFFEITE and MUSGRAVITE<GEMSTONES IN THE LATEST TOPICS> 06.10.13
	A report from lectures at “Gemmological Society of Japan" 2006 EXPERIMENT OF HPHT TREATMENT ON DIAMOND<GEMSTONES IN THE LATEST TOPICS> 05.12.23
	APPLICATIONS OF LASER ABLATION-INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY (LA-ICP-MS) TO GEMOLOGY Gems & Gemology, Summer 2006, Vol.42, No.1 Ahmadjan Abduriyim and Hiroshi Kitawaki
	Determination of the origin of blue sapphire using Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) The Journal of Gemmology, 2006, Vol.30, 1/2 Ahmadjan Abduriyim and Hiroshi Kitawaki
	"PARAÍBA"-TYPE COPPER-BEARING TOURMALINE FROM BRAZIL, NIGERIA, AND MOZAMBIQUE:CHEMICAL FINGERPRINTING BY LA-ICP-MS Gems & Gemology, Spring 2006, Vol.42, No.2 Ahmadjan Abduriyim, Hiroshi Kitawaki, Masashi Furuya and Dietmar Schwarz
	Research Lab. Report Up-to-date Be-diffused Blue Sapphire 06.06.27
	Research Lab. Report Green Quartz 06.05.12