tufa

• Sanderman stared off at the lake, where the tufa islands were taking on sharper definition as the rising sun gilded them. —  dummy2
• Add some water and wind to the tufa, and you have Goreme's famous unusal rock formation, the fairy chimneys. —  TravelPod.com Recent Updates
• They are built of blocks of red tufa, with facing of travertine. —  Pagan and Christian Rome
• Beyond this there were cliffs of the humid red tufa, and the myrtle and the holy thorn grew down their sides, and met in summer the fragrant hesperis of the shore These cliffs were fine bold bluffs, and one of them had been called from time immemorial the Sasso Scritto,--why, no one knew; the only writing on it was done by the hand of Nature. —  Wisdom, Wit, and Pathos of Ouida Selected from the Works of Ouida
• The torrent flowed along the surface of the hardened tufa, and destroyed the few meagre skeletons of trees which had withstood the first eruption. —  The Secret of the Island

Allen's Synonyms and Antonyms

Used in the Same Context