Franckeite on matrix (!) Hopeite A handful of sharp

A handful of sharp

a good association specimen from this famous locality

Specimen # BOL711B161

luster and overall quality of the crystals

Specimen# CO712B65

Franckeite on matrix (!) Hopeite A handful of sharpFranckeite is a relatively rare iron, lead, tin, antimony sulfosalt, which is not often found in well crystallized display specimens, especially on matrix! This is one of the very few specimens of Franckeite that I have seen from the famous Siglo XX mine, and certainly one of the most eye catching. This piece hosts several groups of Franckeite consisting of somewhat "sword" shaped crystals forming spherical aggregates which are sitting on minor