• Spring 2019

Spring 2019

  • $15.00
Feature articles from this issue:
A New Method for Determining Gem Tourmaline Species by LA-ICP-MS
Ziyin Sun, Aaron C. Palke, Christopher M. Breeding, and Barbara L. Dutrow

U-Pb Ages of Zircon Inclusions in Sapphires from Ratnapura and Balangoda (Sri Lanka) and Implications for Geographic Origin
Emilie Elmaleh, Susanne Theodora Schmidt, Stefanos Karampelas, Klemens Link, Lore Kiefert, Annette Süssenberger, and André Paul

The Talisman of Charlemagne: New Historical and Gemological Discoveries
Gerard Panczer, Geoffray Riondet, Lauriane Forest, Michael S. Krzemnicki, Davy Carole, and Florian Faure

Provenance Discrimination of Freshwater Pearls by LA-ICP-MS and Linear Discriminant Analysis (LDA)
Artitaya Homkrajae, Ziyin Sun, Troy Blodgett, and Chunhui Zhou

Pleochroism and Color Change in Faceted Alexandrite: Influence of Cut and Sample Orientation
Karl Schmetzer

Land of Origins: A Gemological Expedition to Ethiopia
Wim Vertriest, Daniel Girma, Patcharee Wongrawang, Ungkhana Atikarnsakul, and Kevin Schumacher

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