onyx
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Example Sentences
Example:Unlike onyx, glass lacks the natural patterns and layers found in chalcedony.
Definition:A hard, brittle substance that is transparent or translucent, and generally made from silica.
From glass
Example:Synthetic onyx is created artificially in a lab and might not have the same quality or appearance as natural onyx.
Definition:Made by artificial means; produced by chemical synthesis using non-natural substances.
From synthetic
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