Constituent
Name
Graphite
Family
covalent network solid
Class
sheet covalent network solid
Compound type
elemental solid
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0
Mole fraction
1.0
Chemical composition
Formula
$C$
Chemical formula
C
Elemental formula
C
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$C$ Carbon element 1 1.0 1 constituent element main
Chemical bonds
  Bond Number
$\geq C-C \leq$
Class
sheet covalent networks (10)
Type
non-metal homonuclear sheet networks (elemental) (10.01)
Phase name
alpha-graphite
Phase type
crystalline
Crystal system
hexagonal
Crystal class
dihexagonal-dipyramidal
Crystal class symbol
6/mmm (D6h)
Crystal spacegroup
P6(3)/mmc
Polytypes
  • graphite-2H (it is the alpha hexagonal form with stacking of type ABAB)
  • graphite-3R (it is the beta rhombohedral form with stacking of type ABCABC)
Molar mass
12.0107 $g/mol$
Density
2.09 - 2.23 $g/cm^3$
Refringence type
uniaxial
Refringence sign
negative
Refraction index $n_{\alpha}$
1.93 - 2.07
Color
black, dark gray, steel gray, iron black
Diaphaneity
opaque
Luster
submetallic