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Volcanic rock

We have found the following answers matching the query 'Volcanic rock' in our database: For more stats and recent usage scroll down and continue reading. Volcanic rock crossword clue was last seen on January 29 2024 in the popular Thomas Joseph Crossword.

RankAnswerCluePublisher
99%PUMICEVolcanic rockThomas Joseph
20%IGNEOUSLike volcanic rockUniversal
20%LAVAMolten volcanic rockNewsday

Definition

A very light porous volcanic scoria, usually of a gray color, the pores of which are capillary and parallel, giving it a fibrous structure. It is supposed to be produced by the disengagement of watery vapor without liquid or plastic lava. It is much used, esp. in the form of powder, for smoothing and polishing. Called also pumice stone.

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