Chert look-alikes
Chert (a microcrystalline variety of quartz)
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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
Flint
Flint (a variety of chert)
Also known as: Black Chert
Jasper
Jasper (an opaque, impure variety of chert)
Also known as: Red Chert, Green Chert
Agate
Agate (a banded variety of chalcedony/chert)
Also known as: Banded Chalcedony
Chalcedony
Chalcedony (a microcrystalline variety of quartz)
Also known as: Cryptocrystalline Quartz
Novaculite
Novaculite (a dense, fine-grained variety of chert)
Also known as: Arkansas Stone
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