Organizer : The Gemmological Association of Hong Kong Limited
Topic :   Detection of trace elements in coloured gemstones and Fei Cui, State of the Art in non-destructive ED-XRF analysis.
Date :   2017/02/24 - 2017/02/24
Detail

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- 2017 Membership Renewal Subscription (2016/12/30)
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- 37th Anniversary Dinner cum Gem-A (UK) Diplomas in Gemmology Presentation (2016/11/03)
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Special Announcement
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