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The Aztec Origins of a Mysterious Elizabethan Mirror (thedailybeast.com)

http://img147.imageshack.us/img147/9325/cosolgzj0.jpg While mineral hunting in the mountains of California near Olancha during the winter of 1961, Wallace Lane, Virginia Maxey and Mike Mikesell found a rock, among many others, that they thought was a geode - a good addition for their gem shop...