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
Researchers also found additional relics like stone tools made from flint and quartz, as well as animal bones displaying cut marks.
—
Andrew Paul, Popular Science, 12 Mar. 2025
Neighborhood: Shannon Park Realtor: Holly Sullivan • Keller Williams South Park
Specs: 3 beds, 2 baths and 1,500 square feet
Notable features: Hardwood floors, wood burning fireplace, quartz countertops and modern lighting.
—Alexis Clinton, Axios, 7 Mar. 2025
The countertops that line the perimeter of the kitchen and top the large island are quartz, while the kitchen window above the sink overlooks the backyard.
—James Alexander, Hartford Courant, 2 Mar. 2025
The model highlights the brand’s exclusive material, Gold Quartz TPT, a composite achieved by stacking ultra-thin sheets of quartz fibers layer upon layer, then heating them to 120 degrees at a pressure of 6 bars.
—Cait Bazemore, Robb Report, 28 Feb. 2025
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Andrew Paul, Popular Science, 12 Mar. 2025
Neighborhood: Shannon Park Realtor: Holly Sullivan • Keller Williams South Park
Specs: 3 beds, 2 baths and 1,500 square feet
Notable features: Hardwood floors, wood burning fireplace, quartz countertops and modern lighting.
—Alexis Clinton, Axios, 7 Mar. 2025
The countertops that line the perimeter of the kitchen and top the large island are quartz, while the kitchen window above the sink overlooks the backyard.
—James Alexander, Hartford Courant, 2 Mar. 2025
The model highlights the brand’s exclusive material, Gold Quartz TPT, a composite achieved by stacking ultra-thin sheets of quartz fibers layer upon layer, then heating them to 120 degrees at a pressure of 6 bars.
—Cait Bazemore, Robb Report, 28 Feb. 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 22 Mar. 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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