Apedia

Tuff N Type Rock Made Compressed Volcanic Ash

Word tuff
Definition n. A type of rock made of compressed volcanic ash.
Sentence They saw the Sambatyon springing up: a roiling of sandstone, a gurgling of tuff, a dripping of muck, a ticking of shards, a grumbling of clotted earth, an overflowing of clods, a rain of clay...
Source
Baudolino, Umberto Eco, p. 358

Tags: language::english, topic::vocabulary

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