Russell Shor, February 1, 2016
G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.
Read MoreMary L. Johnson, Robert C. Kammerling, June 1, 1996
Opal occurs as nodules in volcanic rocks at a new gem opal locality in the Menz Gishe district of Shewa Province, Ethiopia.
Read MoreBrendan M. Laurs, Thomas W. Overton
This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.
Read MoreBenjamin Rondeau, et al.
A new opal deposit was discovered in 2008 near the village of Wegel Tena, in the volcanic rocks of Ethiopia’s Wollo Province.
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