bead
Anglo-Saxon Beads: Redefining The “Traffic Lights”
Book Review: The Bead Maker From Ribe: The Story of a Viking Craftsman by Thomas Risom
The Mother of All Bead Furnaces: Testing a Hypothesis about a Natural Draft Bead Furnace
Kicking Ash, Viking Glass Bead Making
***Tens of thousands (Callmer, 1977, pp.12-32) of beads marking the rich graves of the Viking world indicate that the production of these beads is an area worthy of study. Evidence such as mandrels, crucibles, bead fragments, and semi-manufactures exist at Helgo, Birka, Paviken, Hedeby...
Beads
Small and usually round balls made of glass or stone et cetera strung with others for example in a necklace.
Definition source: Chambers 21st Century Dictionary
What kind of jewellery did people wear in the Middle Ages (NL)?
Well, that depended on who you were. There were large differences in classes, between farmers, civilians, clergymen and the nobility.
Often jewellery was about your profession (if you were a man)...