Constituent
Name
BiOCl - Bismoclite
IMA name
Bismoclite
Class
non-silicate mineral
Compound type
halide
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Chemical composition
Formula
$BiOCl$
Chemical formula
BiOCl
Elemental formula
(Bi3+) (O2-) (Cl-)
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Isotope mole fraction State Relevance
$Bi^{3+}$ Bismuth cation element 1 constituent cation main
$O^{2-}$ Oxide anion element 1 constituent anion main
$Cl^-$ Chloride anion element 1 constituent anion main
Chemical bonds
  Bond Number
$\cdot (\cdot) Bi^{3+} \cdot O^{2-} \cdot$ 1
$\cdot (\cdot) Bi^{3+} \cdot Cl^{-}$ 1
Oxides
Formula $Cl$
Mass fraction (%) 13.61
Oxides comments
Bi2O3=89.46%, -3.07 % -O=Cl2

Strunz

Class
halides (03)
Division
oxyhalides, hydroxyhalides and related double halides (03.D)
Family
With Pb (As,Sb,Bi), without Cu (03.DC)
Code
03.DC.25

Dana

Major class
halides (IV)
Class
oxyhalides and hydroxyhalides (10)
Type
where A (O,OH) Xq (10.02)
Group
Bismoclite Group (10.02.01)
Code
10.02.01.02
Phase type
crystalline
Crystal system
tetragonal
Crystal class
ditetragonal-dipyramidal
Crystal class symbol
4/mmm (D4h)
Crystal spacegroup
P4/nmm
Texture
polycrystalline
Molar mass
260.43 $g/mol$
Density
7.717 $g/cm^3$
Refringence type
uniaxial
Refringence sign
negative
Birefringence
0.2400
Refraction index $n_{\alpha}$
2.15
Refraction index $n_{\beta}$
1.91
Color
white, brown, colorless, gray, yellow, yellow brown
Diaphaneity
transparent to translucent
Luster
greasy