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Petrified Colors

Escalante-Grand Staircase

Late afternoon sun perfuses the broken end of a large petrified log revealing the luminous depth of the exposed myriad colors. Ferric oxide (Hematite) imbues the quartz with red; iron hydroxide (hydrogoethite), with yellow and buff; chromium ions, green; cobalt ions, blue. Photo © copyright by Robert Faucher.

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