Onyx look-alikes
Banded Chalcedony (SiO2)
Got a photo? Identify rocks instantly with the Rockby app
Open the appSeveral rocks and minerals can be confused with Onyx. Below are documented look-alikes and the features that tell them apart. Never rely on a single feature. Always check multiple properties.
Similar rocks to compare
Agate
Agate (SiO2)
Also known as: Banded Chalcedony
Sardonyx
Sardonyx (SiO2)
Also known as: Banded Chalcedony
Jasper
Jasper (SiO2)
Also known as: Opaque Chalcedony
Obsidian
Obsidian
Also known as: Volcanic Glass
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