Obsidian Deposit in Zayukovo (Baksan) (IMAGE) AKSON Russian Science Communication Association Caption A - obsidian in rocks formed during the eruption; B, C - obsidian boulders ("bombs"), differing in color and shape. Credit Ekaterina V. Doronicheva <em>et al</em>. / <em>Journal of Archaeological Science: Reports</em> 2018 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.