A piece of the rock that struck Earth 50,000 years ago, creating the Barringer Meteor Crater, this 235.4-gram iron is a classic for all meteorite collections. The meteorite was recognized in 1891; it is an iron octahedrite, coarse (IA). The main mass was vaporized, and about 30 tons have been found. David J. Eicher Last week, I spent several days in Tucson, Arizona, and the surrounding area. Not only was it a welcome relief from the near-constant...