kyanite

Thân thiện

A geologist holds a piece of kyanite up to the light.

Definition

1. Noun:
   • A grey or greenish-blue mineral consisting of aluminum silicate in crystalline form. It occurs in metamorphic rock and is used as a refractory material.

Usage Examples

• Noun:
  • The geologist identified the blue crystal as kyanite.
  • High-quality kyanite is valued for its heat-resistant properties in industrial applications.

Advanced Usage

• In Geology: Kyanite is a key indicator mineral used by geologists to determine the pressure and temperature conditions under which a metamorphic rock formed.
  • The presence of kyanite in the schist suggests high-pressure metamorphism.

Variants and Related Words

• Cyanite: An alternative, less common spelling for kyanite.
• Disthene: An older synonym for kyanite, referencing its property of having two different hardnesses on different crystal axes.

Synonyms

• Aluminum silicate mineral: A descriptive term for minerals with a similar chemical composition.
• Refractory mineral: A functional term for minerals resistant to heat, like kyanite.

Related Phrases and Terms

• Kyanite schist: A type of metamorphic rock rich in kyanite.
  • The quarry is known for its beautiful kyanite schist.
• Kyanite zone: In metamorphic petrology, a region characterized by the formation of kyanite.
  • The rock sample was collected from the kyanite zone of the mountain belt.

Học thuật

Noun

1. a grey or greenish-blue mineral consisting of aluminum silicate in crystalline form; occurs in metaphoric rock, used as a refractory

Từ đồng nghĩa

• cyanite