Two nice fractures showing plumose structure & concentric ribs on the tops of Roman cobblestones. Origin of fracture at left center in both. http://pic.twitter.com/hDyW936tCV
— Callan Bentley (@callanbentley) June 24, 2017
via Twitter https://twitter.com/callanbentley
June 24, 2017 at 08:56PM
No comments:
Post a Comment