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Cross bedded Navajo Sandstone  glows in reflected light deep in a canyon in the Vermillion Cliffs Wilderness. The reds and...
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Sandstone Rainbow

Vermillion Cliffs Wilderness, AZ

Cross bedded Navajo Sandstone  glows in reflected light deep in a canyon in the Vermillion Cliffs Wilderness. The reds and yellows come from oxidized iron  (Fe+3) while the blue  comes from reduced iron ( Fe+2)accentuated by the reflected blue sky light.

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