Four Treasures Reference Database
Record No. 5402
Gem News: Sapphire in Ontario
Journal Article
Koivula, J.I. and Kammerling, R.C. (1989) Gem News: Sapphire in Ontario. Gems & Gemology, Vol. 25, No. 2, Summer, pp. 114.
ISBN/ISSN: 0016626X | Sinkankas/Born No.: NIS / NIB | RWHL
corundum, , sources, Canada, gems