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Earth lab datasite

Chalcopyrite
Sulphide on sphalerite
copper iron sulphide
Cu Fe S2
Scale bar = 1 centimetre
cleavage: Poor
crystal system: Tetragonal
hardness 3.5 - 4.0
relative density 3.5 - 4.0
Laxey mines, Isle of Man, England
26 A 4