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Home » Minerals » Graphite

Graphite


Mineral Properties and Uses



Physical Properties of Graphite

Chemical Classification native element
Color steel gray to black
Streak black
Luster metallic, sometimes earthy
Diaphaneity opaque
Cleavage perfect in one direction
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 other objects. Battery anodes. 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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