Ethiopian Opals and Gems by Huruy Zerzghi WHEN: 10 a.m. to 6 p.m. Jan. 30 through Feb. 11 WHERE: Booth ME 640, Ramada by Wyndham Tucson, 777 W. Cushing Street, Tucson ...

is also known in the trade as “Mexican opal” or “Mexican fire opal”. Boulder opal is translucent to opaque opal with play-of-color within a host rock. Thin layers of opal exist within the host rock ...

Additionally, the phenomenon of opal whitening, particularly in Ethiopian fire opals, was investigated. Researchers proposed that the unique zoned opals found in Ethiopia are a result of ...

The legacy of Mr. Genta strikes at first sight in terms of aesthetics and construction, with individually screwed fire opal gems surrounding the circumference of the ...