Solid phase
Official name
Zinc sulfide beta
Secondary names
Sphalerite; Zinc sulphide; Zincblende
CAS number
1314-98-3
Type
Family
covalent network solid
Class
tridimentional covalent network solid
Compound type
non-oxide ceramic
Chemical composition
Formula
β−ZnS
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
β−ZnS
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 α−ZnS 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
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