Glass bead doped with 2 mol% Niobium (Nb4+) Ions
Size about 28mm – Weight ~ >5g – Material: Sr-Zn Phosphate glass
Nice glass bead. Each one handmade of phosphate glass in our lab.
On the picture you see a backlighted large bead showing its nice blue color!
Only available here!
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.