: a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem
Examples of opal in a Sentence
Recent Examples on the Web
The star also added some opal pieces.
—
Catherine Santino, PEOPLE, 28 Apr. 2026
Back in 2023, NASA’s Curiosity rover spotted opal on Mars—a mineral tied to water and, potentially, environments that could support life.
—Ryan Brennan
april 27, Fort Worth Star-Telegram, 27 Apr. 2026
One of them was a pair of earrings that contained precious opals.
—Karen Billing, San Diego Union-Tribune, 12 Apr. 2026
Those opal cat-eye nails are feeling very bride to me!
—Kara Nesvig, Allure, 27 Mar. 2026
See All Example Sentences for opal
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Catherine Santino, PEOPLE, 28 Apr. 2026
Back in 2023, NASA’s Curiosity rover spotted opal on Mars—a mineral tied to water and, potentially, environments that could support life.
—Ryan Brennan
april 27, Fort Worth Star-Telegram, 27 Apr. 2026
One of them was a pair of earrings that contained precious opals.
—Karen Billing, San Diego Union-Tribune, 12 Apr. 2026
Those opal cat-eye nails are feeling very bride to me!
—Kara Nesvig, Allure, 27 Mar. 2026
See All Example Sentences for opal
Cite this Entry
“Opal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/opal. Accessed 2 May. 2026.
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opal
noun
: a mineral with changeable colors that is used as a gem
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