1
: a mineral consisting of silicon dioxide occurring in colorless and transparent or colored hexagonal crystals or in crystalline masses
2
: a quartz crystal that when placed in an electric field oscillates at a constant frequency and is used to control devices which require precise regulation
a quartz watch
Examples of quartz in a Sentence
Recent Examples on the Web
The material, commonly used in countertops, is thought to cause more severe lung damage than exposure to pure natural quartz, Mandler says.
—
Caroline Haskins, Wired News, 17 Apr. 2025
The golden years of the competitions, which judged accuracy and reliability, were 1950 to 1954, just before the quartz revolution.
—Carol Besler, Forbes.com, 13 Apr. 2025
The house has 5½ bathrooms, a formal dining room, a large den with a private patio and a kitchen with white custom cabinetry, Wolf and Sub-Zero appliances and Cambria quartz counters.
—Bob Goldsborough, Chicago Tribune, 7 Apr. 2025
The timepiece features a 17mm rose gold case with an anti-glare sapphire crystal, a white mother-of-pearl dial and quartz movement.
—Renan Botelho, Footwear News, 3 Apr. 2025
See All Example Sentences for quartz
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Caroline Haskins, Wired News, 17 Apr. 2025
The golden years of the competitions, which judged accuracy and reliability, were 1950 to 1954, just before the quartz revolution.
—Carol Besler, Forbes.com, 13 Apr. 2025
The house has 5½ bathrooms, a formal dining room, a large den with a private patio and a kitchen with white custom cabinetry, Wolf and Sub-Zero appliances and Cambria quartz counters.
—Bob Goldsborough, Chicago Tribune, 7 Apr. 2025
The timepiece features a 17mm rose gold case with an anti-glare sapphire crystal, a white mother-of-pearl dial and quartz movement.
—Renan Botelho, Footwear News, 3 Apr. 2025
See All Example Sentences for quartz
Cite this Entry
“Quartz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quartz. Accessed 25 Apr. 2025.
Copy CitationKids Definition
quartz
noun
: a common mineral consisting of silicon dioxide that is often found in the form of colorless transparent crystals but is sometimes (as in amethysts, agates, and jaspers) brightly colored
Medical Definition
quartz
noun
: a mineral SiO2 consisting of a silica that occurs in colorless and transparent or colored hexagonal crystals and also in crystalline masses
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