Limonite Concretion look-alikes
Hydrous iron oxide
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Open the appSeveral rocks and minerals can be confused with Limonite Concretion. 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
Hematite
Iron(III) Oxide (Fe2O3)
Also known as: Specularite, Kidney Ore, Iron Ore
Goethite
Iron(III) Oxide-Hydroxide (α-FeOOH)
Also known as: Bog Iron (when massive)
Siderite
Iron(II) Carbonate (FeCO3)
Also known as: Iron Carbonate
Pyrite
Iron Disulfide (FeS2)
Also known as: Fool's Gold
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