Franckeite on matrix (!) Hopeite Definitely different from your typical

Definitely different from your typical Viloco specimens

Specimen # BOL711B161

A handful of sharp

Specimen# CO712B65

and not crumbly clay (after Allophane) which means that they are much sturdier and allows the pieces to be displayed with ease

Franckeite on matrix (!) Hopeite Definitely different from your typicalFranckeite 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