Triangular faced Chalcopyrite crystals which have grown epitaxially on Rubyjack Sphalerite. Additionally, there is a cluster of elongated Marcasite crystals arising from the Sphalerite. The Chalcopyrite has a bit of reddish iridescence in places the Sphalerite has small areas of blue iridescence.
Flaws: Two of the Marcasite crystals are incomplete.
This mineral is also found in the following galleries: Minerals From the United States | Sulfides and Sulfosalts | Minerals Priced Between 25 and 49 Dollars