Ferberite, Marcasite
Tazna Mine (Tasna Mine; Tazna-Rosario Mine), Cerro Tazna, Atocha-Quechisla District, Nor Chichas Province, Potosi Department, Bolivia
Miniature, 4.5 x 4.2 x 3.4 cm
This is a very attractive display specimen of Ferberite from Bolivia. The piece features rather large, sharp, lustrous, aesthetic, jet-black, tabular crystals of Ferberite with a "ball" of associated Marcasite on the specimen as well. The specimen is great shape overall, and allows for multiple angles to display the piece. These Bolivian Ferberites are often underrated and stand up very well against any other Ferberites from China or Panasqueira. This piece is from the famous find in 2005 which produced some of the finest Bolivian Ferberites in recent memory. Ex. Brian Kosnar.