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pumiceous |
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pumiceous [pyü′mish·əs] (geology) Pertaining to the texture of a pyroclastic rock, such as pumice, characterized by numerous small cavities presenting a spongy, frothy appearance. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Half way up was a square enclosure of some greyish stone, which I found subsequently was built partly of coral and partly of pumiceous lava. These beds are covered by others of a peculiar soft white stone, including much gypsum, and resembling chalk, but really of a pumiceous nature. |
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