Size approx. 13mm – weight approx. 1 – 1.5g – Material: phosphate and borate glasses. You get 7 glass beads + a FREE UV LED lamp 395nm
The top row shows the colorless and slightly coloured glasses, which illuminate under UV (395nm see below): Europium, Cerium, Terbium, Samarium, Manganese, Uranium, Dysprosium
You get this UV-LED lamp for FREE !
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.
A feast for the eyes of element collectors!