Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Pumice

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_1961

Pumice is also known as ‘pan stone’, which means melted rock in Chinese. Pumice is made of volcanic glass with abundant pores filled with air, like a honeycomb. It has a low density (0.3–0.4/cm3) and can float on water. Pumice generally refers to light-coloured porous acidic volcanic glass rock. Basaltic pumice usually has a higher density, so it does not float on water.

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