Iron Oxide Concretions look-alikes
Goethite/Hematite
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Open the appSeveral rocks and minerals can be confused with Iron Oxide Concretions. 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
Manganese Nodules
Manganese oxides/hydroxides with iron oxides
Also known as: Polymetallic Nodules
Pyrite Concretions
Pyrite (FeS2) concretions
Also known as: Maracas, Iron Pyrite Nodules
Siderite Concretions
Siderite (FeCO3) concretions
Also known as: Iron Carbonate Concretions
Chert Nodules
Cryptocrystalline Quartz (SiO2) nodules
Also known as: Flint Nodules
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