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- Title
Circular ring-like inclusions in a diffusion-treated sapphire.
- Authors
Choudhary, Gagan; Golecha, Chaman
- Abstract
The article describes a circular ring-like inclusions in a diffusion-treated sapphire examined at the Gem Testing Laboratory in Jaipur, India. The sample's refractive indices of 1.762-1.770, birefringence of 0.008, and hydrostatic specific gravity of 3.98 identified it as a natural or synthetic corundum. Microscopic observation showed straight, hexagonal zones that were a little cloudy and whitish. The whitish zones appear to consist of fine pinpoint inclusions at higher magnification. The sample also contained some irregular cloudy patches.
- Subjects
JAIPUR (India); INDIA; SAPPHIRES; GEM &; precious stone inclusions; CORUNDUM; GEMS &; precious stones
- Publication
Gems & Gemology, 2006, Vol 42, Issue 4, p286
- ISSN
0016-626X
- Publication type
Article