Ulrika D’Haenens-Johansson
Gemological Insitute of America, New York, NY
Activity
2025
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Studying and Exhibiting the Winston Red Diamond at the Smithsonian NMNH
166 Mineralogical Characterization of Economic Resources: From Critical Minerals to GemstonesTuesday, 21 October 20258:00 AM - 12:00 PMHBGCC, 217A