Franckeite (very rare) (ex Josef Vajdak)

Item Description

This is one of the rarest sulfosalts in the world. This specimen is a rich, incredibly rare, good quality, crystallized specimen of the triclinic lead, tin, iron, antimony sulfosalt Franckeite consisting of somewhat "curved" blades oriented into a semi-spherical aggregate. This piece is nice specimen for somebody looking to own a displayable piece of an exceptionally rare mineral. A good opportunity to acquire something that is rarely offered in the open market for a great price. This species belongs to the only group of minerals that forms in naturally "round" or "cylindrical" shaped crystals. This piece comes with a classic label from Josef Vajdak / Pequa Rare Minerals, which immediately increases the value. You can read Joe's biography here: http://www.minrec.org/labels.asp?colid=1371