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Update on the Rock Creek Sapphire Deposit

Warren Boyd and Keith Barron, July 31, 2015

An overview of recently expanded sapphire production at the Gem Mountain mine near Philipsburg, Montana.

Phosphorescence in Synthetic Sapphire

Meenakshi Chauhan, October 17, 2013

Rare phosphorescence was observed in a synthetic sapphire, which had unusual properties not indicative of a particular growth method.