Embed Size (px)
Citation preview
0 The Journal of ^ * + i i i c j w u i l i a i u i
Gemmology
Contents
Coiled 'rutile' whiskers in a quartz single crystal Ichiro Sunagawa, E. Alan jobbins and Emma Tinnyunt
Colour zoning and composition of ruby-sapphire from Westland, New Zealand Rodney H. Crapes and Paul W. O. Hoskin
Red and green labradorite feldspar from Congo Michael S. Krzemnicki
Optimizing faceting for beauty Anton V. Vasiliev. Translated by Bruce L Harding
The microstructure of the shell and cultured blister pearls of Pteria penguin from Sanya, Hainan, China Huang Fengming, Chen Zhonghui, Tong Hua, Zhou Ying, Zhang Ziqi and
Yang Mingxing
Abstracts
Book Reviews
Proceedings of the Gemmological Association and Gem Testing Laboratory of Great Britain and Notices
Ti^^Tf^^MlJfS^^&^MiSmlfLlE^JmmTTftoTm+ZMTfTTTri
whiskers in a quartz single crystal pp 1-7).
The Gemmological Association and Gem Testing Laboratory of Great Britain Registered Office: Palladium House, 1 -4 Argyll Street, London W1F 7LD
Copyright © 2004 ISSN: 1355-4565
Gem Testing Laboratory of Great Britain an
Office: Palladium House, 1 -4 Argyll Street
