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
Each candle pairs a calming scent with a meaningful crystal, like rose quartz for healing or garnet for passion.
—
Christa Joanna Lee, Glamour, 13 Oct. 2025
The long central island’s polished quartz surface lights up from within, giving the kitchen a touch of soft glamour, and an adjoining area can be utilized as a lounge or casual dining space.
—Mark David, Robb Report, 13 Oct. 2025
Distinguished by pavé diamond settings, these trios included blue chalcedony with blue topaz and milky quartz, and rose and lemon quartz with citrine.
—Sandra Salibian, Footwear News, 10 Oct. 2025
Tour compares his lab’s setup to a toaster oven, which uses electricity to rapidly heat a quartz tube under a slice of bread.
—IEEE Spectrum, 9 Oct. 2025
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Christa Joanna Lee, Glamour, 13 Oct. 2025
The long central island’s polished quartz surface lights up from within, giving the kitchen a touch of soft glamour, and an adjoining area can be utilized as a lounge or casual dining space.
—Mark David, Robb Report, 13 Oct. 2025
Distinguished by pavé diamond settings, these trios included blue chalcedony with blue topaz and milky quartz, and rose and lemon quartz with citrine.
—Sandra Salibian, Footwear News, 10 Oct. 2025
Tour compares his lab’s setup to a toaster oven, which uses electricity to rapidly heat a quartz tube under a slice of bread.
—IEEE Spectrum, 9 Oct. 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 20 Oct. 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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