scoriaceous

The geologist examined the scoriaceous rock sample.

Definition

1. Adjective:
   • Resembling or characteristic of scoria: "scoriaceous" describes a texture, appearance, or composition that is similar to scoria, a type of volcanic rock that is dark, rough, and full of gas bubbles (vesicular). It implies a porous, slag-like, or cindery quality.

Usage Examples

• Adjective:
  • The lava flow cooled into a scoriaceous crust. (The surface of the lava became rough and full of holes like scoria.)
  • The geologist identified the sample as scoriaceous basalt. (The rock had the vesicular texture typical of scoria.)
  • The building material had a scoriaceous finish, making it lightweight and insulating. (The material looked and felt like volcanic slag.)

Advanced Usage

• "scoriaceous texture": a specific geological term referring to a rock surface that is porous and rough, formed by escaping gases during volcanic eruption.

  • The scoriaceous texture of the pumice made it ideal for abrasive cleaning. (The pumice had a bubbly, rough surface.)

• "scoriaceous appearance": used in petrology or construction to describe something that visually resembles scoria.

  • The artificial aggregate was designed to have a scoriaceous appearance for aesthetic purposes. (The man-made material looked like volcanic cinders.)

Variants and Related Words

• Scoria (n): a dark, vesicular volcanic rock, often used as a building material or in landscaping.

  • The garden path was lined with scoria. (A type of porous volcanic rock.)

• Scoriaceousness (n): the quality or state of being scoriaceous.

  • The scoriaceousness of the sample indicated rapid cooling. (The degree of porousness suggested quick solidification.)

Synonyms

• Vesicular: having small cavities or bubbles (often used for volcanic rocks).
• Slaggy: resembling slag, the waste material from smelting.
• Cindery: like cinders or ash.

Related Idioms