The mysterious geological formations seem to be crunchy on the outside and softer in the middle.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/MlbY9SEJfDc" height="1" width="1"/>
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The mysterious geological formations seem to be crunchy on the outside and softer in the middle.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/MlbY9SEJfDc" height="1" width="1"/>