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

It was carefully studied with a 6 1/4 inch Cooke-achromatic by the late Professor Phillips, the geologist, who compared it to the dolomitic or trachytic mountains of the earth.

From The Moon A Full Description and Map of its Principal Physical Features by Elger, Thomas Gwyn

The outbursts of porphyry and trachytic domes, so characteristic of the high crests of the Cordilleras, impart a physiognomy quite distinct from that presented by the mountains of Europe.

From The Andes and the Amazon Across the Continent of South America by Orton, James

Water and mud, which flow not from the crater itself, but from the hollows in the trachytic mass of the mountain, can not, strictly speaking, be classed among volcanic phenomena.

From COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 by Humboldt, Alexander von

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