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Home » Minerals » Graphite

Graphite


Mineral Properties and Uses



Physical Properties of Graphite

Chemical Classification native element
Color black
Streak black
Luster dull metallic
Diaphaneity opaque
Cleavage perfect
Mohs Hardness 1 to 2
Specific Gravity 2.1 to 2.3
Diagnostic Properties color, streak, feel, specific gravity
Chemical Composition C
Crystal System hexagonal
Uses Used to manufacture heat and chemical resistant containers and objects. A dry lubricant. The "lead" in pencils.


Graphite in schist
Graphite in schist from Essex County, New York. Specimen is approximately 5 inches (12.7 centimeters) across.


Graphite in schist
Graphite in schist from Essex County, New York. Specimen is approximately 5 inches (12.7 centimeters) across.



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Graphite from Madagascar. These are grain size flakes of graphite.




Graphite chunk
Graphite from Kropfmuhl, Austria. Specimen is approximately 1-1/2 inches (3.8 centimeters) across.


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