Iron 2+ doped Sodium Lanthanum borate glass bead
Size about 10mm . Material: NaLaB
High refractive glass. Each one handmade in our lab.
the Fe2+ ions cause this yellow green color.
Beautiful optical glass beads doped with metal ions.
Elaborately and individually manufactured by us in the laboratory from highly pure reagents.
Gorgeous beads showing the typical colors of different metal ions in different oxidation states.
They can be used for save demonstration of different colors of the metal compounds or just for collecting.