A gorgeous Merovingian rock crystal buckle w/ silver tongue, early-mid6thC from Marne, France: http://www.britishmuseum.org/research/collection_online/collection_object_details.aspx?objectId=90020&partId=1 …pic.twitter.com/jcBqnUzDTd
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Merovingian crystal ball found with the late 5th-century burial of the Frankish king Childeric at Tournai, Belgium: http://www.kornbluthphoto.com/images/ChildBall.jpg …pic.twitter.com/iRDYpOC59u
A 6th-century Byzantine rock crystal button with a garnet mounted in a gold granulated star: http://www.clevelandart.org/art/1946.259 pic.twitter.com/myegVnhUa1
Another rock crystal belt buckle, found in a 6th-century Merovingian grave at Saint-Dizier (Haute-Marne), north-eastern France: https://www.inrap.fr/magazine/st-dizier/Des-pieces-remarquables/La-boucle-de-ceinture-en-cristal-de-roche?&s=article238 …pic.twitter.com/sgvZFyHscw
You always share such beautiful things, thank you. 
My pleasure :)
God that’s gorgeous! Not seen that one before. Thanks for sharing!
It really is fab! :)
Very cool to see the juxtaposition of the two. Roughly contemporaneous? Would the Vikings have gotten this in a raid or might they have appropriated the design?
No, rather later :)
So beautiful. I love that they developed technology just to make beautiful things and took the time to do it. Awestruck
Rock crystal is so beautiful. I used to work at an auctioneer’s and I still lament the perfect set of rock crystal sphere earrings I let slip 

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