Limestone look-alikes
Limestone (sedimentary rock composed primarily of calcium carbonate)
Got a photo? Identify rocks instantly with the Rockby app
Open the appSeveral rocks and minerals can be confused with Limestone. 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
Dolomite
Dolomite (composed primarily of the mineral dolomite, CaMg(CO3)2)
Also known as: Dolostone
Marble
Marble (metamorphosed limestone or dolostone)
Also known as: Metamorphosed Limestone
Chert
Chert (composed primarily of microcrystalline quartz, SiO2)
Also known as: Flint, Jasper, Agate
Sandstone
Sandstone (composed primarily of sand-sized mineral or rock grains)
Also known as: Arenite
Explore Limestone
Identify rocks anywhere
Free on iOS, Android, and Web. Photo identification, full database, and your personal collection.