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Mineralpedia Details for Tenorite

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Tenorite

Tenorite

Named to honor Italian botanist Professor Michele Tenore of the University of Naples in Naples, Italy. Tenorite has hundreds of localities where it occurs in oxidized portions of hydrothermal copper deposits and also as a volcanic sublimate.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/tenorite.pdf

Formula
CuO 
Crystal System
Monoclinic 
Crystal Habit
Scaly, Earthy, Massive 
Cleavage
None, None, None 
Luster
Earthy (Dull) 
Color
black, steel gray 
Streak
black 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
3.5-4 
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Tenorite from Majuba Hill mine, Pershing Co., Nevada, United States

Tenorite
            from Majuba Hill mine, Pershing Co., Nevada, United States

Black "spots" of Tenorite to 5mm with associated bluish Clinoclase.

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Tenorite from Bisbee, Cochise Co., Arizona, United States

Tenorite
            from Bisbee, Cochise Co., Arizona, United States

Black, shiny, elongated crude crystals from 1-2mm.

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