Four Treasures Reference Database
Record No. 639
Gem Trade Lab Notes: Sapphire with diffusion-induced color and star
Journal Article
Crowningshield, G.R. (1995) Gem Trade Lab Notes: Sapphire with diffusion-induced color and star. Gems & Gemology, Vol. 31, No. 1, Spring, pp. 56–57.
ISBN/ISSN: 0016626X | Sinkankas/Born No.: NIS / NIB | RWHL
corundum, treatments.6, gems