Franckeite (Var: Potosiite) - San Jose Mine, Bolivia

Top 10 Amethyst Countries Map - EarthWonders Newsletter #8

specimen
specimen
Franckeite (Var: Potosiite)
SpeciesSize
FranckeiteMiniature
Comments
Details
ColorsBlack, Grey
SizeMiniature
Dimensions3.1 x 2.1 x 1.8 cm
Species
Description
This specimen is a very attractive, incredibly rare, superb quality, 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 6 mm sitting atop crystallized and the equally rare triclinic lead, tin, iron, antimony sulfosalt Franckeite. For those of you who are unaware, the crystals of Potosiite on this specimen are EXCEPTIONALLY LARGE for the species.
Known provenanceKnowing where your specimen comes from and who owned it adds to its story and value. Good provenance helps prove it's authentic and preserves important details about its discovery.
Unknown owner
Purchase
Richardson, Texas, USA

Unknown previous owners

Earth

Origin