General Information:
Chemical Formula:CuO
Composition:(Molecular Weight = 79.55 gm)Copper 79.89 %
CuOxygen 20.11 %
O Empirical Formula: CuO
Environment:Secondary copper mineral.
IMA Status:Approved IMA 1960
Locality:Bisbee, Arizona, USA.
Name Origin:Named after the Italian botanist, M. Tenor (1781-1861).
Physical Properties: Cleavage:None
Color:black or steel gray.
Density:6.5
Diaphaniety:Opaque
Habits:Scaly - Morphology like fish scales., Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., Massive - Uniformly indistinguishable crystals forming large masses.
Hardness:3.5-4 - Copper Penny-Flourite
Luminescence:None.
Luster:Earthy (Dull)
Streak:black
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