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

---

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

In New Zealand, numerous regions abound in basaltic and trachytic rocks.

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 same traveller supposes, although he found no limestone or trace of fossils in any of the rocks of Teneriffe, that the alternating trachytes and trachytic conglomerates originated beneath the sea.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir

Extensive beds of tuff and breccia accompany the trachytic masses.

From Volcanoes: Past and Present by Hull, Edward

Veins of ochre and clay, holes filled with scoria, with intrusions of larger or smaller fragments of various rocks and minerals, and a kind of stratification, are the principal features of this trachytic formation.

From The Highlands of Ethiopia by Harris, William Cornwallis