Franckeite - image 1
Franckeite - image 2
specimen video

Franckeite

$250.00

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Crystal Classics
Crystal ClassicsFeatured
Tucson, Arizona, USA
7,574 for sale·132 sold
A near solid specimen of crystalline Franckeite, with some cavities lined with crystals to 2mm., from the San Jos' Mine, Bolivia.

Product details

Species
FranckeiteAbout Franckeite →
SizeSmall Cabinet
Dimensions5.2 x 6.6 x 4.0 cm
Listed on10/24/2024
Locality
Bolivia, Potosí, San Jose MineRegional guide →
SKUCC16572

Learn more

Mineral guide
Learn about Franckeite
, a rare micaceous lead-tin-antimony sulfosalt, forms layered rosettes and curved plates; Bolivian origin and texture make it collectible.
Franckeite
Regional guide
Franckeite from San José Mine, Bolivia
from the San José Mine is one of the classic Bolivian sulfosalt specimens: black to steel-gray, metallic, soft, heavy, and often built from curving blades and radiating rosettes rather than simple textbook crystals. The best pieces have a lively sheen that moves across the bent plates as the specimen is turned, giving an otherwise dark mineral a surprisingly sculptural presence. Collectors prize San José franckeite because it shows the species in displayable form—not merely as a massive ore constituent, but as rosettes, foliated aggregates, compact sprays, and curved, bladed crystals that express the mineral’s layered structure in the hand.