Agate look-alikes
Agate (a variety of Chalcedony, which is a cryptocrystalline form of Silica)
Got a photo? Identify rocks instantly with the Rockby app
Open the appSeveral rocks and minerals can be confused with Agate. 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 (an opaque variety of Chalcedony)
Also known as: Orbicular Jasper, Picture Jasper
Onyx
Onyx (a banded variety of Chalcedony, typically with parallel bands)
Also known as: Sardonyx
Flint
Flint (a dense, fine-grained variety of Chalcedony)
Also known as: Chert
Petrified Wood
Silicified Wood (often composed of Chalcedony or Opal)
Also known as: Fossilized Wood
Explore Agate
Identify rocks anywhere
Free on iOS, Android, and Web. Photo identification, full database, and your personal collection.