Graphite is a crystalline allotrope o carbon, a semimetal an a native element mineral. Graphite is the maist stable form o carbon unner staundart conditions. Tharefore, it is uised in thermochemistry as the staundart state for definin the heat o formation o carbon compoonds.

Graphite specimen
CategoryNative mineral
(repeatin unit)
Strunz clessification1.CB.05a
Creestal seestemHexagonal
Creestal clessDihexagonal dipyramidal (6mmm)
H-M symbol: (6/m 2/m 2/m)
Space groupP63/mmc
Unit cella = 2.461, c = 6.708 [Å]; Z = 4
ColourIron-black to steel-gray; deep blue in transmitted light
Creestal habitTabular, six-sided foliated masses, granular to compacted masses
CleavageBasal – perfect on {0001}
FracturFlaky, ithergates rouch when nae on cleavage
TenacityFlexible non-elastic, sectile
Mohs scale haurdness1–2
SkinkleMetallic, yirdy
DiaphaneityOpaque, transparent anerly in extremely thin flakes
Density2.09–2.23 g/cm3
Optical propertiesUniaxial (–)
SolubilitySoluble in molten nickel, warm chlorosulfuric acid[1]
Ither chairacteristicsstrangly anisotropic, conducts electricity, creashie feel, readily merks

References eedit

  1. Liquid method: pure graphene production. (May 30, 2010).
  2. Graphite.
  3. Graphite.
  4. Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C., eds. (1990). "Graphite". Handbook of Mineralogy (PDF). I (Elements, Sulfides, Sulfosalts). Chantilly, VA, US: Mineralogical Society of America. ISBN 0962209708.