Tazna Mine (Tasna Mine; Tazna-Rosario Mine), Cerro Tazna, Atocha-Quechisla District, Nor Chichas Province, Potosi Department, Bolivia
Miniature, 3.3 x 2.7 x 2.2 cm
This was one of the very few multi-twinned pieces from the recent find of these amazing specimens. This is an eloquent piece featuring several sharp, lustrous, jet black blades of Ferberite which are twinned along the a100 face. It is not a simple twin consisting of two blades, but rather many blades in parallel growth twinned together. Ex. Brian Kosnar.