国际宝石新闻 Gems & Gemology, Winter 2008, Volume 44, No. 4

Winter 2008 Gem News International


Colored Stones and Organic Materials
            Visit to Andesine Mines in Tibet and Inner Mongolia
            Gemological Properties of Andesine Collected in Tibet and Inner Mongolia
            New Find of Vivid Kunzite from Pala, California
            Natural Pearls of the Veneridae Family
Synthetics and Simulants
            Synthetic Citrine with Abundant Nail-Head Spicules
            Radiocarbon Dating of “Neptunian” Beads from Asia Proves Modern Origin
            Purplish Blue Synthetic Quartz
Treatments
            Dyed Chalcedony Resembling Chrysocolla
Miscellaneous
            Update on U.S.-Myanmar Import Restrictions
Announcements
            Starting with this issue, the conference and exhibit calendars will only appear online.
           
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