An excellent example of the species from Bolivia with very large, well-formed and fine quality crystals of ferberite. This was among the top pieces at a reputable Austrian dealer’s booth in Tucson, 2016 who specialized in Bolivian minerals. At the time, I bought it for my personal collection for a high price but as my collection got a different direction I decided to liquidate it. Sulfide minerals of this quality are the holy grail of many advanced collectors for their rarity and unique crystallization.
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