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Reticulite – A Rock So Fragile it Can Be Sliced with a Post-It-Note

Who would have ever thought that there was a solid such as a rock… that you could cut through it with a piece of paper?

Reticulite, a highly vesicular form of pumice, is so fragile it can be sliced in half with a Post-it note!


Reticulite from a volcanic eruption of Kilauea is contrasted with lava flows, and with carbonated soda. It can be crushed in your bare hands, or flattened with a plastic spoon; a plastic fork goes right through it. Visit our web site at http://www.uhh.hawaii.edu/~csav/

2 Responses

  1. that’s why paper wins over rock in jun ken po.

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