: a reddish-brown variety of chalcedony sometimes classified as a variety of carnelian
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Sardonyx is a combination of the minerals sard and onyx, which together form the reddish-brown or orange stone with bands of white or black.
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Olivia Munson, USA TODAY, 1 Aug. 2024
Sardonyx is a combination of minerals sard and onyx, which together form a reddish-brown or orange stone with bands of white or black.
—Olivia Munson, USA TODAY, 27 Mar. 2023
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Olivia Munson, USA TODAY, 1 Aug. 2024
Sardonyx is a combination of minerals sard and onyx, which together form a reddish-brown or orange stone with bands of white or black.
—Olivia Munson, USA TODAY, 27 Mar. 2023
Cite this Entry
“Sard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sard. Accessed 18 Jul. 2025.
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