Cu2OCubic
Cuprite
Cu2O
OxidesChemical FormulaCu2O
Crystal SystemCubic
Mohs Hardness3.5
Specific Gravity6.14
ColorRed to dark red
LusterAdamantine to submetallic
StreakBrownish red
CleavageNone
FractureConchoidal
Occurrence
Found in oxidized copper deposits. Deep red color. Minor copper ore.