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2. Thans-Caucasian obsidian: the exploitation of the sources and their distribution;Badalyan,2004
3. New data on source characterization and exploitation of obsidian from the Chikiani area (Georgia);Biagi;Eurasiatica,2016
4. Discovery of obsidian mines on Mount Chikiani in the Lesser Caucasus of Georgia;Biagi;Antiquity,2017
5. Chemical characterization of Caucasian obsidian geological sources;Blackman,1998