Bismuth Germanate

Bi12GeO20

Bismuth Germanate - Bi12GeO20
Chemical name
Bismuth Germanate
Mineral name
BGO
Chemical formula
Bi12GeO20
Melting point [°C]
1050
Crystal system
cubic
Unit cell
a [Å]:10,143
b [Å]:10,143
c [Å]:10,143
Molecular weight [g/mol]
1245.68 or 2900
Formula units
Z=2
Mohs hardness
4.5
Density [g/cm3]
7.13 or 9.22
Cleavage
none
Transparency
transparency range 470 - 7500 nm
Refractive Index
n=2.55 (at 633 nm)