common topaz

Thân thiện

A jeweler examines a common topaz under a bright light.

Definition

1. Noun:
   • A yellow quartz: "common topaz" refers specifically to a variety of quartz (silicon dioxide) that is yellow in color. It is a semi-precious gemstone. This term distinguishes it from true topaz, which is a different silicate mineral.

Usage Examples

• Noun:
  • The jeweler explained that the stone in the ring was common topaz, not the more expensive precious topaz.
  • Yellow common topaz is often used as an affordable alternative in jewelry.

Advanced Usage

• In gemology, "common topaz" is a technical term used to correctly identify the mineral species (quartz) of a yellow gemstone, preventing confusion with the more valuable mineral topaz.

Variants and Related Words

• Citrine: (n) Another variety of yellow quartz, often a deeper golden or orange-brown color compared to common topaz.
• Quartz: (n) The broad mineral family to which common topaz belongs.
• Precious topaz / True topaz: (n) Refers to the mineral topaz (aluminum fluorosilicate), which is a different and often more valuable stone.

Synonyms

• Yellow quartz: The direct descriptive synonym.
• False topaz: A sometimes-used term highlighting the distinction from true topaz.

Related Phrases

• "Common topaz variety": Used to specify the type within the quartz family.
  • This pendant features a common topaz variety of quartz.

Học thuật

Noun

1. a yellow quartz

Từ đồng nghĩa

• topaz
• false topaz