quartz

/kwɔ:ts/
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quartz

A clear quartz crystal sits on a geologist's desk.

Definition
  1. Noun:
    • A hard, glossy mineral: A naturally occurring solid substance composed primarily of silicon dioxide (SiO₂) in a crystalline form. It is a very common mineral found in many types of rocks, such as sandstone and granite.
    • A type of glass: Colorless glass of very high purity, made from almost pure silica (silicon dioxide), which is the main chemical component of the mineral quartz.
Examples of Usage
  • Noun (Mineral):
    • The countertop is made of beautiful pink quartz.
    • This sandstone contains a high percentage of quartz.
  • Noun (Glass):
    • The laboratory beaker is made of fused quartz for high-temperature experiments.
Advanced Usage
  • "Quartz crystal": A piece of quartz with a precise geometric shape, used in electronics for its piezoelectric properties (it generates an electric charge under mechanical stress).
    • The watch uses a tiny quartz crystal to keep accurate time.
  • "Quartzite": A hard, metamorphic rock formed from sandstone that has been recrystallized under heat and pressure, consisting almost entirely of quartz.
    • The mountain ridge is composed of durable quartzite.
Variants and Related Words
  • Quartzose (adj): Describing a rock or sediment that is rich in quartz.
    • The beach has quartzose sand.
  • Quartziferous (adj): Containing or yielding quartz.
    • A quartziferous vein in the rock.
Synonyms
  • Silica: The chemical compound silicon dioxide (SiO₂), which is the primary constituent of quartz. (Note: "Silica" refers to the compound, while "quartz" typically refers to the specific crystalline mineral form.)
  • Rock crystal: A transparent, colorless form of quartz.
Related Phrases
  • "Rose quartz": A pink variety of quartz, often used as a gemstone.
  • "Smoky quartz": A brown to black variety of quartz.
  • "Quartz watch": A watch that uses a quartz crystal oscillator to regulate time, known for its accuracy.
quartz

A clear quartz crystal sits on a geologist's desk.

Noun
  1. a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
  2. colorless glass made of almost pure silica

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