Definition

1. Noun:
   • A transparent or translucent gemstone with a pearly luster: "moonstone" is a type of gemstone known for its characteristic milky, bluish, or white sheen that resembles moonlight. It is a variety of feldspar mineral.

Usage Examples

• Noun:
  • She wore a beautiful necklace set with a large moonstone.
  • Moonstone is often used in jewelry for its unique, ethereal glow.

Advanced Usage

• "Adularescence": This is the optical phenomenon that creates the characteristic shimmer or glow in a moonstone.
  • The quality of a moonstone is judged by the strength of its adularescence.

Variants and Related Words

• Feldspar (n): The group of minerals to which moonstone belongs.
  • Moonstone is a gem variety of feldspar.

Synonyms

• Gemstone: A precious or semi-precious stone, especially when cut and polished for jewelry.
• Adularia: A specific, transparent variety of orthoclase feldspar that can exhibit the moonstone effect.

Related Phrases

• Rainbow moonstone: A trade name often used for a labradorite feldspar that displays a similar play of color.
  • Rainbow moonstone exhibits flashes of blue, green, and yellow.

Noun

1. a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar