Flint look-alikes
Chert (variety of microcrystalline quartz)
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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
Jasper
Microcrystalline Quartz (SiO2)
Also known as: Red Chert
Chalcedony
Microcrystalline Quartz (SiO2)
Also known as: Fibrous Quartz
Agate
Microcrystalline Quartz (SiO2)
Also known as: Banded Chalcedony
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Also known as: Hydrated Amorphous Silica
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