13 Photos
Cubanite
Chemical Formula	CuFe2S3
Species	Sulfides
Crystal System	Orthorhombic
Mohs Scale	3
Specific Gravity	4.0-4.2
Color	Bronze to brass-yellow
Streak	Black
Luster	Metallic
Diaphaneity	Opaque
Cleavage	Parting on and
Fracture	Conchoidal
Crystal Habit：Crystals elongated to thick tabular, striated also massive
Geological Setting：High temperature hydrothermal deposits

Cubanite was first described in 1843 for an occurrence in the Mayarí-Baracoa Belt, Oriente Province, Cuba.

Cubanite occurs in high temperature hydrothermal deposits with pyrrhotite and pentlandite as intergrowths with chalcopyrite. It results from exsolution from chalcopyrite at temperatures below 200 to 210 °C. It has also been reported from carbonaceous chondrite meteorites.