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Ironstone
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Ironstone is a sedimentary rock, either deposited directly as a ferruginous sediment or created by chemical replacement, that contains a substantial proportion of an iron ore compound from which iron
Ironstone (sandstone with iron oxides) from the Mississippian Breathitt Formation, Mile Marker 166, I-64, Kentucky
Ironstone (sandstone with iron oxides) from the Mississippian Breathitt Formation, Mile Marker 166, I-64, Kentucky
Iron-cemented sandstone from the Late Triassic, Sydney, Australia
Iron-cemented sandstone from the Late Triassic, Sydney, Australia
Ironstone wall in Deddington
Ironstone wall in Deddington
Bringelly Shale
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Bringelly Shale is a component of the Wianamatta group of sedimentary rocks in the Sydney Basin of eastern Australia. Formed in the Middle Triassic Period, it has an extensive outcrop in the western p
Exposed Bringelly Shale at Greystanes, Australia
Exposed Bringelly Shale at Greystanes, Australia
Exposed sediments on Prospect Highway, Pemulwuy
Exposed sediments on Prospect Highway, Pemulwuy
Rock fragments include ferruginised mudstone and siltstone, iron-stained sandstone lenses, silicified shale, and ironstone concretions formed through
Rock fragments include ferruginised mudstone and siltstone, iron-stained sandstone lenses, silicified shale, and ironstone concretions formed through groundwater alteration and surface weathering.