Armlet

Smooth, round jet armlet. Jet is made of bituminous coal and does not occur naturally in Scandinavia. One place it does occur is the British Isles which is probably where the ring emanates from. Grave find, Birka, Bj 860A, Adelsö Parish, Uppland.

Image rights: Ola Myrin, Historiska museet/SHM (CC BY 4.0