Crystals of gallium. The chemical element gallium is a rare, soft silvery metallic poor metal. It occurs in trace amounts in bauxite and zinc ores. Gallium is notable for its stunning silvery color and its solid metal fractures conchoidally like glass.
A chemical analysis pinpoints Mesopotamia as the source of this glass bead, featuring inlaid eyes of yellow and white glass. The bead was discovered in a Danish grave. Mikkelsen, National Museum of DenmarkNews