Flint look-alikes
Cryptocrystalline Quartz (Chert variety)
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Open the appSeveral rocks and minerals can be confused with Flint. 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
Chert
SiO₂
Also known as: Radiolarite, Jasper, Novaculite
Chalcedony
SiO₂
Also known as: Agate, Onyx, Carnelian
Obsidian
Amorphous SiO₂ with various impurities
Also known as: Volcanic Glass
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