trachyte

A geologist examines a sample of trachyte in the field.

Definition

1. Noun:
   • A volcanic rock: "trachyte" is a light-colored, fine-grained igneous rock, typically composed of alkali feldspar and minor amounts of dark minerals. It is formed from lava that cooled rapidly on the Earth's surface.

Usage Examples

• (A specific type of volcanic rock forming the landscape.)
• (The rock is studied for its geological properties.)

Advanced Usage

• "trachyte lava": lava that solidifies into trachyte rock.

  • The eruption produced thick, viscous trachyte lava that formed a dome. (Lava with the composition of trachyte.)

• "trachyte quarry": a site where trachyte is extracted for use.

  • The trachyte quarry supplied stone for building monuments in the region. (A place where trachyte is mined.)

Variants and Related Words

• Trachytic (adj): relating to or resembling trachyte.

  • The trachytic texture of the rock indicates a specific cooling process. (Having characteristics of trachyte.)

• Trachytization (n): the process of transforming into trachyte.

  • Trachytization occurs under certain volcanic conditions. (The geological change to trachyte.)

Synonyms

• Lava rock: a general term for rock formed from cooled lava (though not specific to trachyte).
• Volcanic rock: any rock formed from volcanic activity (trachyte is a subtype).

Phrasal Verbs

Related Idioms