| 21. | These dark compressed pyroclastics have been interpreted to be pumice.
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| 22. | Finally, the pumice stone of Santorini allowed for a perfect finish.
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| 23. | The volcano that produced the pumice might be covered by glacial ice.
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| 24. | Most of the pumice is found interlocked with the ignimbrites.
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| 25. | It forms a light friable mass that is strongly suggestive of pumice.
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| 26. | Common surface rocks include basalt, andesite, pumice, and obsidian.
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| 27. | It is weakly welded and contains white pumice and crystals with fiamme.
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| 28. | They both contain pumice and lithic fragments and are poor in crystals.
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| 29. | Granite and pumice are materials also present in this unit.
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| 30. | Some pumice fall layers are embedded in the upper unit.
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