Russell Shor, June 12, 2015
G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
Read MoreWarren Boyd, June 17, 2015
An overview of recently expanded sapphire production at the Gem Mountain mine near Philipsburg, Montana.
Read MorePhil York, October 17, 2013
Analysis reveals blue lead glass filling in a sapphire that has an overall green bodycolour as a result of the filling’s combination with natural yellow colour.
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