Near the village of Gulu in China's Guizhou province, there's a cliff face that looks like it was bedazzled by some primeval interior decorator. Smooth, colorful, egg-shaped stones jut out from the craggy rock, leading locals to call this cliff Chan Dan Ya, or "egg-producing cliff." What exactly creates these "eggs" is a mystery to visitors, but luckily, it's no challenge for geologists.
The Scientific Explanation
Searching for Concretions
Written by Ashley Hamer March 14, 2018
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