ophite

A polished ophite specimen rests on a geologist's desk.

Definition

1. Noun:
   • A type of igneous rock: "ophite" refers to a dark, greenish-gray rock composed mainly of serpentine minerals, often found in ophiolitic complexes. It is a variety of serpentinite.
   • A mineral: In mineralogy, "ophite" can also denote a greenish mineral, typically a form of serpentine or a related silicate.

Usage Examples

• Noun (rock):

  • The geologist identified the sample as ophite, noting its characteristic green hue and smooth texture. (A dark, greenish igneous rock.)
  • Ophite is commonly studied in the context of oceanic crust formation. (The rock type is associated with seafloor geology.)

• Noun (mineral):

  • The specimen contained small crystals of ophite embedded in a matrix of quartz. (A greenish mineral form.)

Advanced Usage

• "ophite in geology": used to describe a specific rock type in petrology.

  • The ophite in this region is believed to have formed during the Jurassic period. (The rock has a specific geological age.)

• "ophite as a decorative stone": historically used in architecture or sculpture.

  • Ancient Roman columns were sometimes carved from ophite. (The stone was valued for its color.)

Variants and Related Words

• Ophitic (adj): relating to or resembling ophite.

  • The ophitic texture of the rock indicates slow cooling. (The rock has a characteristic appearance.)

• Ophiolite (n): a larger geological assemblage that includes ophite.

  • The ophiolite complex contains layers of ophite, peridotite, and basalt. (A broader rock suite.)

Synonyms

• Serpentinite: a rock similar to ophite, composed of serpentine group minerals.
• Verd antique: a green marble-like stone, sometimes confused with ophite in decorative use.

Phrasal Verbs

(None applicable; "ophite" is a noun and does not form phrasal verbs.)

Related Idioms

(None applicable; "ophite" is a technical term with no idiomatic usage.)