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Item #8089
Chalcocite on Pyrite var. "Ducktownite"
Santa Rita Mine, Chino, New Mexico

A complete, floater cluster of chalcocite on pyrite. The main crystal shows mostly pyritohedral form, the smaller ones more half octahedral half pyritohderal. In great shape with one very small ding. Overall size 12 x 12 x 17 mm, 4g.

These crystals were originally identified as a new mineral and named "ducktownite" but later determined to be pyrite coated with chalcocite. I have never run across these pieces before and was happy to buy the best fifteen specimens from an old collection. You can learn more about the mine and "ducktownite" in this article.

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