The Identification of Zachery-Treated Turquoise | Gems & Gemmology
Emmanuel Fritsch, Shane F. McClure, March 1, 1999
Millions of carats of turquoise have been enhanced by a proprietary process called the Zachery treatment.
Read More
A Gemological Study of Turquoise in China
Wang Fuquan, March 1, 1986
Chinese gem-quality turquoise is sky blue, greenish blue or bluish green in colour.
Read More
The Identification of Turquoise by Infrared Spectroscopy and X-Ray Powder Diffraction
Th. Lind, K. Schmetzer, September 1, 1983
Two techniques for identifying natural, treated and synthetic turquoise are examined.
Read More
