- MD-185389
- Franckeite (Var: Potosiite), Franckeite
- San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
- Small Cabinet, 8.2 x 4.4 x 2.1 cm
- SOLD
This specimen is a superb, crystallized specimen of the triclinic lead, antimony, iron, tin sulfosalt Potosiite consisting of several, extremely rare, highly lustrous, heavily striated, tabular blades (some are twinned) of Potosiite measuring up to 5 mm sitting atop crystallized and the equally rare triclinic lead, tin, iron, antimony sulfosalt Franckeite.