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Graphene
General
CategoryMineral
Formula
(repeating unit)
C
Strunz classification1/B.02-10
Crystal systemHexagonal
Space groupHexagonal
Unit cellone lattice point and a two atom basis.
Identification
Formula massCarbon
ColorIron black to steel grey
Twinning{1121}
CleavagePerfect {0001}
FractureMicaceous
TenacityFlexible
Mohs scale hardness>10
LusterSub-metallic
StreakBlack to steel grey
DiaphaneityOpaque
Density2.09–2.23 g/cm3
References[1][2]
  1. ^ "Graphene at Mindat".
  2. ^ {{cite web| url=http://reu.physics.ucla.edu/common/papers/2010/shevitski_brian.pdf | title= Graphene