Four Treasures Reference Database
Record No. 633
Developments and Highlights at GIA’s Lab in New York: Some sapphire problems
Journal Article
Crowningshield, G.R. (1979) Developments and Highlights at GIA’s Lab in New York: Some sapphire problems. Gems & Gemology, Vol. 16, No. 7, Fall, pp. 194–196.
ISBN/ISSN: 0016626X | Sinkankas/Born No.: NIS/NIB | RWHL
corundum, treatments.6, gems