CUPRITE

Cu2O
Copper Oxide

 Cleavage: fair in four directions forming octahedrons

 Colour: red to a deep red almost black

 Fracture: conchoidal

 Hardness: 3.5-4

 Luster: adamantine, submetallic, dull or earthy

 Streak: brick red

 Possible Useage: copper ore

 More Info: Mineral Gallery, Mineralogy Database