Four Treasures Reference Database
Record No. 4865
Gem News: More synthetics sold as natural ruby in Vietnam
Journal Article
Koivula, J.I. and Kammerling, R.C. (1991) Gem News: More synthetics sold as natural ruby in Vietnam. Gems & Gemology, Vol. 27, No. 4, Winter, p. 260.
ISBN/ISSN: 0016626X | Sinkankas/Born No.: NIS / NIB | RWHL
corundum, ruby, synthetic corundum.7, Vietnam.12, gems