trachytic

British  

/ trəˈkɪtɪk /

adjective

1. (of the texture of certain igneous rocks) characterized by a parallel arrangement of crystals, which mark the flow of the lava when still molten

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Example Sentences

It retracted deep into the earth after the eruption, leaving a chimney in the older, harder trachytic rock.

From Washington Post • Sep. 9, 2022

Chimborazo is very likely not a solid mountain; trachytic volcanoes are supposed to be full of cavities.

From With the World's Great Travellers, Volume 2 by Various

The Snake and Columbia rivers are lined by walls of volcanic rock, basaltic above, trachytic below, for a distance of, in the former, one hundred, in the latter, two hundred, miles.

From Volcanoes: Past and Present by Hull, Edward

Some of the trachytic lavas are said to abound with crystals of albite.

From Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume I (Commodore B. Von Wullerstorf-Urbair,) Undertaken by Order of the Imperial Government in the Years 1857, 1858, & 1859, Under the Immediate Auspices of His I. and R. Highness the Archduke Ferdinand Maximilian, Commander-In-Chief of the Austrian Navy. by Scherzer, Karl Ritter von

The conglomerates and tuffos at their feet, and partly on their terraces and tops, are of trachytic nature, and sometimes pierced through by small dikes of basalt.

From The Highlands of Ethiopia by Harris, William Cornwallis