Location Found: Franklin
 Year Discovered: 1841
 Formula: CuO
 Essential Elements: Copper, Oxygen
 All Elements in Formula: Copper, Oxygen
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
 To find out more about this mineral at minDat's website, follow this link   Tenorite


Tenorite on calcite from Franklin, NJ
Tenorite (black) on calcite from Franklin, NJ. Field of view 5 mm. From the collection of, and photo by DW.

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