Tags: Chemical Substance, Mineral.
Franckeite chemical formula Pb5Sn3Sb2S14 belongs to a family of complex sulfide minerals. Franckeite is a sulfosalt. It is closely related to cylindrite. It was first described in 1893 for an occurrence in Chocaya Potosí Department Bolivia. It is named after the mining engineers Carl and Ernest Francke. It can be found in Bolivia at Poopó in Oruro and at Las Aminas southeast of Chocaya in Potosi.
