Copperite is found in "Namibia" / "Australia" / "Russia" / "France" / "America",

It is characterized by the following physical and chemical properties:

Physical properties

• The shape is octagonal / like sapphire
• The group oxides
  
• The scratch is bright brown red
• Hardness 3.5 / 4
• The color is degrees from / red to black
• Not radioactive
• Transparent to opaque
• The luster is almost diamond

Chemical properties

• Refractive index 2.849
• Density 6.1
• Cubic crystal system
• The chemical formula is copper oxide