This is a HUGE, incredibly intact, 855-gram SINGLE CRYSTAL of willemite! It is a very old specimen, certainly from the 1800s. The crystal is complete all around, fully terminated, and just...BIG! It has several old labels, the first in old script from an unknown collector, and the second being a display label from the early days of the Seaman Museum collection in Michigan. It was exchanged out at some point, and ended up in the noted Franklin collection of George Elling, from whom I exchanged it myself recently. A third label with the specimen notes that it came originally from the collection of Washington Roebling, but I have no proof of that (yet). I have never seen the likes of this kind of a willemite, for sale, and we both consider it a major US classic.