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- Title
An interesting synthetic sapphire.
- Authors
Choudhary, Gagan
- Abstract
The article discusses the results of the gemological testing of a 4.78 ct pear-shaped mixed cut synthetic sapphire with brownish orange color, conducted at the Gem Testing Laboratory of Jaipur, India. Through desk model spectroscopy, it showed that the standard gemological properties of the stone was consistent with corundum and the presence of chromium was also detected. Surface-reaching fingerprint-like inclusions were observed under magnification. Also visible was a trail of dot-like inclusions and scattered pinpoints that resemble gas bubbles. The presence of trace elements, including calcium, titanium, chromium, iron and zinc were observed through energy-dispersive X-ray fluorescence qualitative chemical analyses.
- Subjects
SAPPHIRES; GEMS &; precious stones; ARTIFICIAL gems &; precious stones; CORUNDUM; CHROMIUM; TRACE elements
- Publication
Gems & Gemology, 2008, Vol 44, Issue 1, p87
- ISSN
0016-626X
- Publication type
Article