Journal of Gemmology Precious Braswell 3/1/14 Journal of Gemmology Precious Braswell 3/1/14 A Comparison of R-line Photoluminescence of Emeralds from Different Origins Read More World of Gems Conference Precious Braswell 12/1/08 World of Gems Conference Precious Braswell 12/1/08 Forensic Gemology: Geographic Origin Determinations Read More
Journal of Gemmology Precious Braswell 3/1/14 Journal of Gemmology Precious Braswell 3/1/14 A Comparison of R-line Photoluminescence of Emeralds from Different Origins Read More
World of Gems Conference Precious Braswell 12/1/08 World of Gems Conference Precious Braswell 12/1/08 Forensic Gemology: Geographic Origin Determinations Read More
