Four Treasures Reference Database
Record No. 5382
Gem News: Blue spinel from Vietnam as sapphire imitator
Journal Article
Koivula, J.I., Kammerling, R.C. and Fritsch, E. (1992) Gem News: Blue spinel from Vietnam as sapphire imitator. Gems & Gemology, Vol. 28, No. 2, Summer, p. 138.
ISBN/ISSN: 0016626X | Sinkankas/Born No.: NIS / NIB | RWHL
gems, spinel, corundum, sapphire imitation, Vietnam, blue spinel