Mineral description : Graphite

Picture pending, graphite from Djupsund, Västerbotten.
Graphite in quarts from a railroad bank, Umeå.

Mineral class Elements : Graphite-diamond group
Chemical formula C
Crystal system Hexagonal
Habitus Usually as flaky folded masses, sometimes as flat hexagonal crystals.
Cleavage  
Hardness 1
Density 2.23
Color Gray to black.
Streak Dark gray, colors paper.
Luster Half metallic to dull.
Description  
Occurance Occurs in highly metamorphic rocks, but also in pegmatites and hydrothermal veins.
Associates  
Notes A good electrical conductor.
Locations A common mineral in many parts of Sweden. Even mined in some places.
  • Skrammelfallsgruvan, Norberg area.
  • Skälsta, Uppland.
  • Vittangi, Norrbotten.
  • Råneå, Norrbotten.
  • Outside Härnösand, .

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axelsson@acc.umu.se
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Last changed : 1998-03-07