Nice Bismuth Borate glass bead
Size about 9mm – Weight ~ 1 – 1.5g – Material: BiBa-Borate glass
Density: 5.2g / cm3
The nice colour comes from Bi 3+ Ions
elaborately and individually made in our laboratory from the rather exotic bismuth borate glass with a very high density for glass.
This item is intended as an illustrative and not as a laboratory chemical!