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Hydration rate of obsidian.

I Friedman, W Long

    Science (New York, N.Y.)
    |January 30, 1976
    PubMed
    Summary

    Obsidian hydration rates can be accurately determined using silica content, refractive index, and effective hydration temperature (EHT). This method allows for precise obsidian dating, crucial for archaeological and geological studies.

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