Books tagged: vitrified

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Vitrified Stones
Price: $0.99 USD. Words: 6,240. Language: English. Published: May 3, 2013. Categories: Nonfiction » History » Ancient, Nonfiction » Science and Nature » History of Science
Evidence from the Inca Vestiges of Peru. Analysis and discussion of this mysterious phenomena found throughout the ancient world. Possibly the first spectral analysis of the vitrified stone mystery.