Franckeite with Galena and Antimony-rich Tennantite

Item Description

Franckeite is one of the rarest sulfosalts in the world. This specimen is a very rich, incredibly rare, superb quality, crystallized specimen of the triclinic lead, tin, iron, antimony sulfosalt Franckeite consisting of somewhat "sword"-shaped crystals oriented into spherical aggregates. The piece is associated with grey, metallic Galena crystals and small, very rare groups of grey Antimony-rich Tennantite plus minor Arsenopyrite and greenish Edenite. This piece is a great nearly large cabinet specimen for somebody looking to own a very rare and displayable mineral specimen. A good opportunity to acquire something that is rarely offered in the open market for a great price. Franckeite belongs to the only group of minerals that forms in naturally "round" or "cylindrical" shaped crystals. This specimen is over 30 years old and was part of the best find of the material. There were only a handful of good specimens, and well crystallized display pieces like this are few and far between. Valued at $1250.