Iridescent bead

307MA
Iridescent faceted bead
Date: 7-9 century AD
Byzantine / Islamic /Viking

Cube with faceted corners. Translucent blue glass.
Intact, very good condition. Surface is entirely iridescent.
Height 12 mm, 12 x 12 mm 

For similar published examples in museum's collections see:

- J. Callmer,Trade beads and bead trade in Scandinavia ca. 800-1000 A.D., 1977, pl.1: A183T
- V.Kovalevskaya, Komputernaya obrabotka massovogo arhaeologicheskogo materiala is rannesrednevekovih pamyatnikov Evrasii, Moscow, 2000, p. 20: #117
- Ve´ronique Arveiller-Dulong, Marie-Dominique Nenna.  Les Verres antiques du Musée du Louvre III : Parure, instruments et éléments d’incrustation, Paris, Éditions du Louvre, Somogy, 2011, p. 192 #244,245.