Mineral phase
- IMA name
- Bismoclite
- IMA Code
- Bmc
- Class
- non-silicate mineral
- Compound type
- halide
- Formula
- $BiOCl$
- Chemical formula
- BiOCl
- Elemental formula
- (Bi3+) (O2-) (Cl-)
- Isotope mixture type
- terrestrial abundance
- 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
- Molar mass
- 260.43 $g/mol$
- Density
- 7.717 $g/cm^3$
- State NTP
- solid
- Refringence type
- uniaxial
- Refringence sign
- negative
- Birefringence
- 0.2400
- Refraction index $n_o$ (w)
- 2.15
- Refraction index $n_e$ (e)
- 1.91
- Pure color
- colorless
- Color
- white, brown, colorless, gray, yellow, yellow brown
- Diaphaneity
- transparent to translucent
- Luster
- greasy