Volcanic Bean Stone (Pisolite)
Yonago-shi, Tottori-ken
Clouds are developed at the time of volcanic eruptions. From those clouds, water drops fall and gather volcanic ashes around them to form these concentric balls.
財）石の博物館TM
Kiseki Museum
Collection Photo Album
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Volcanic Bean Stone (Pisolite) Yonago-shi, Tottori-ken |
| It is also called “fossil of raindrops”, but it is not a fossil. Clouds are developed at the time of volcanic eruptions. From those clouds, water drops fall and gather volcanic ashes around them to form these concentric balls. |
