Chert look-alikes
Sedimentary rock (chemical)
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Open the appSeveral rocks and minerals can be confused with Chert. 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
Jasper
Jasper (a variety of Chert)
Also known as: Red Chert, Green Chert
Flint
Flint (a variety of Chert)
Also known as: Black Chert
Chalcedony
Chalcedony (a microcrystalline variety of quartz)
Also known as: Agate, Carnelian, Onyx
Novaculite
Novaculite (a high-purity variety of Chert)
Also known as: Arkansas Stone
Limestone
Limestone (primarily CaCO3)
Also known as: Calcite rock
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