ironstone

Image credit: James St. John

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mineral precipitates

CaCO3

fossiliferous limestone coquina oolite travertine

limestone breccia micrite chalk

(Ca,Mg)(CO3)2 dolostone

SiO2 diatomite chert

Fe2O3 ironstone

clastic

conglomerate breccia sandstone shale

organic carbon

peat lignite bituminous coal anthracite

ironstone

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Resources: ironstone

Image Galleries

• Flickr Image gallery, James St. John: ironstone

• Mindat.org image gallery: ironstone

• Google images: ironstone

Other Resources

• Mindat.org: About ironstone

• minerals and mining ironstone and iron ore in Minerals Education Coalition