Four Treasures Reference Database
Record No. 4868
Gem News: Deceptive color coating of sapphires in Sri Lanka
Journal Article
Koivula, J.I. and Kammerling, R.C. (1991) Gem News: Deceptive color coating of sapphires in Sri Lanka. Gems & Gemology, Vol. 27, No. 4, Winter, p. 265.
ISBN/ISSN: 0016626X | Sinkankas/Born No.: NIS / NIB | RWHL
corundum, sapphire, treatments.6, coatings, Sri Lanka.12, gems