Solid phase
Official name
Zinc sulfide beta
Secondary names
Sphalerite; Zinc sulphide; Zincblende
CAS number
1314-98-3
Family
covalent network solid
Class
tridimentional covalent network solid
Compound type
non-oxide ceramic
Formula
βZnS
Chemical formula
ZnS
Elemental formula
Zn S
Isotope mixture type
terrestrial abundance
4.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
Zn Zinc element 1 0.5 1 constituent element main
S Sulfur element 1 0.5 1 constituent element main
Class
tridimensional covalent networks (11)
Type
metal homonuclear tridimensional networks (elemental) (11.02)
Phase name
βZnS
Phase type
crystalline
Crystal system
isometric (cubic)
Crystal class
hextetrahedral
Crystal class symbol
-43m (Td)
Crystal spacegroup
F-43m
Molar mass
97.474 g/mol
Density
4.09 g/cm3
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-solid αZnS 1293K (1020°C) at 1 bar
Refringence type
isotropic
Refringence sign
no
Refraction index nα
2.369
Pure color
colorless
Color
colorless, white
Diaphaneity
transparent to translucent
Luster
resinous