Limestone look-alikes
Limestone (sedimentary rock, primarily calcite)
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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 of the mineral dolomite, CaMg(CO3)2)
Also known as: Dolostone
Marble
Metamorphosed Limestone (composed of recrystallized calcite or dolomite)
Also known as: Metamorphosed Limestone
Chert
Chert (composed of microcrystalline quartz, SiO2)
Also known as: Flint
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