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black onyx

American  
[blak on-iks] / ˈblæk ˈɒn ɪks /

noun

  1. chalcedony that is solid black in color, usually because it has been dyed.


Etymology

Origin of black onyx

First recorded in 1640–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A client’s fingers might clutch a smooth black onyx, or a jagged rose quartz, or tissues.

From Los Angeles Times Apr. 16, 2026

A side benefit of the exhaustive search is that Cookie found a black onyx earring she lost years ago.

From Washington Times Jan. 5, 2020

Miniaturized stage sets, they are populated with pairs of lapis and turquoise parrots, intertwining jeweled zebras, diamond-and-sapphire monkeys and cocooning penguins with black onyx and cabochon gems, all similar in scale.

From New York Times Nov. 3, 2017

On Aug. 17, two days before her 24th birthday, Hurst sat her down on their couch and presented her with a black onyx David Yurman ring.

From Washington Post Dec. 17, 2015

It was a black onyx clock with a gold face but on top of it was the real beauty.

From "Cannery Row" by John Steinbeck

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