sphaerosiderite

Example:Sphaerosiderite, similar to apatite, is a mineral that can be found in weathered zones around iron deposits.

Definition:A ubiquitous secondary mineral in weathered ultrabasic rocks and iron formations, that plays an economically important role in uranium, niobium, and rare earth element deposits.

Example:Like sphaerosiderite, goethite is a colored iron mineral that can be found in weathered zones around iron deposits.

Definition:An iron(III) hydroxide mineral that is the hydrated form of iron oxide (FeO(OH)). It occurs in soils, freshwater sediments, and as nodules in ironstones.