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Date: 2015-03-17 01:07:38Matter Gemology Chrysoberyl Cabochon Ruby Tanzanite Chatoyancy Gemmological Association of Great Britain Sapphire Gemstones Crystallography Chemistry | Page 1. Vol. 22 Autumn 2013 Tasmanian GemmologistAdd to Reading ListSource URL: www.gem.org.auDownload Document from Source WebsiteFile Size: 2,88 MBShare Document on Facebook |