Constituent
Name
αBi2O3 - Bismite
Official name
alpha-Bismuth trioxide
Family
covalent network solid
Class
sheet covalent network solid
Compound type
oxide
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Chemical composition
Formula
$Bi_2O_3$
Chemical formula
Bi2O3
Elemental formula
Bi2 O3
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$Bi$ Bismuth element 2 0.4 1 constituent element main
$O$ Oxygen element 3 0.6 1 constituent element main
Chemical bonds
  Bond Number
$ >Bi-O-$ 6
Class
sheet covalent networks (10)
Type
one metal and one non-metal atoms sheet networks (10.04)
Phase name
alpha-Bi2O3
Phase type
crystalline
Crystal system
monoclinic
Crystal class
prismatic
Crystal class symbol
2/m (C2h)
Crystal spacegroup
P2(1)/c
Texture
polycrystalline
Molar mass
465.958 $g/mol$
Density
8.90 $g/cm^3$
Refringence type
uniaxial
Refringence sign
negative
Birefringence
0.180
Refraction index $n_{\alpha}$
2.00
Refraction index $n_{\beta}$
1.82
Color
yellow
Diaphaneity
transparent to translucent
Luster
adamantine