These unique pyrite formations are completely natural, but a bit of a mystery...Pseudomorph, polymorph, pyrite replacement of goethite -- everyone seems to have their own ideas about how these are formed! Museum specimens of these formations are popular, while collectors and crystal healers have a difficult time locating these minerals to add to their collections. We met with the miners from Gachala, Columbia, and got the last of theirs, so we have a limited quantity of them for purchase.

 

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