Matthew Hardman
Gemological Institute of America, Carlsbad, CA
Activity
2025
-
Distribution of Spectroscopic Defects in Rare Natural Diamonds Colored by Isolated Nitrogen
166 Mineralogical Characterization of Economic Resources: From Critical Minerals to GemstonesTuesday, 21 October 20258:00 AM - 12:00 PMHBGCC, 217A