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This object was removed from a block of brown coal that had been mined in Wolfsegg, Austria. It has since become known as the Salzburg Cube. The tertiary coal deposit in which it had been embedded is dated to about 60 million years ago. In 1886 one geologist suggested that its was meteoritic in origin. It was exhibited from 1950-58. In 1966-67 it was analyzed using electron-beam microanalysis. There were no traces of nickel, chromium, or cobalt in the iron suggesting that it was not of meteoritic origin. The lack of sulphur showed that it was not a pyrite. Many experts agree that because of the straightness, sharpness and uniformity of the edges it was a machine-made instrument and part of a much larger device.

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Originally posted 2017-12-17 19:29:25.