This is, quite simply, a KILLER large thumbnail specimen of hematite. The video will show it better than I can say it, but you can literally shave in your reflection from this crystal; it is so reflective like a mirror. It comes from the famous "mirror pocket" thought to have come out in 2007 or 2008, and that ended up with Charlie Key. Charlie sold the pocket "intact" except for his favorite thumbnail, miniature, and small cabinet pieces he kept for his own suites at the time, and which he later sold to Marshall Sussman. I partnered on the deal and we obtained this at the time, butit has not been shown since (this was around 2010). It is simply a perfect, mirror-like crystal that is so reflective you cannot make a photo head on - or all you see is the camera lens looking back at itself in reflection. In a thumbnail case, it simply leaps out to the eye, as you try to focus on it. This pocket is thought to be the most important and most valuable single hematite pocket, still to this day, with specimens in the major collections of the world. The large cabinet pieces are now in the MIM museum, and others similarly placed. This long-lost thumbnail, in a lost flat in my back warehouse, is from that important find, and has a place of honor in any world class thumbnail or metallic collection.