Pumice
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 Specimen of highly porous pumice from Teide volcano on Tenerife, Canary Islands. Density of specimen approximately 0.25 g/cm3; scale in centimeters. |
Pumice is a volcanic rock that consists of highly vesicular volcanic glass, which may or may not contain crystals. It is typically light colored. Scoria is another vesicular volcanic rock that differs from pumice in having larger vesicles and thicker vesicle walls and being dark colored and denser.
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| University of Oxford image of pumice. University of Oxford image of pumice. www.earth.ox.ac.uk/~oesis/rocks/ign8.html - Web |
| Analytical identification of a single source pumic... Analytical identification of a single source pumice from Greek shores and ancient sites in the Levant. uoa.academia.edu/.../Analytical_identification_of_a_single_source_pumice_from_Greek_shores_and_ancient_sites_in_the_Levant - Web |
| On the occurrence of a pumice-rich layer in Holoce... On the occurrence of a pumice-rich layer in Holocene deposits of western Peloponnesus, Ionian Sea, Greece. A geomorphological and geochemical approach. uoa.academia.edu/.../On_the_occurrence_of_a_pumice-rich_layer_in_Holocene_deposits_of_western_Peloponnesus_Ionian_Sea_Greece._A_geomorphological_and_geochemical_approach - Web |
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