Ironstone beds

Ore deposit

Seams of iron-rich sediment laid down in shallow Jurassic seas between beds of shale and siltstone, lean in iron but wide and easy to follow.

Rocks

Ironstone, Shale, Jasper, Limonite

Minerals

Siderite, Hematite, Magnetite, Chamosite

Metals

Iron

Worked

Before and since the industrial age

Examples

Minette of Lorraine and Luxembourg; Cleveland Ironstone, North Yorkshire, behind the rise of Teesside in the 1800s

Sources

• Ironstone. Wikipedia.
• Minette (ore). Wikipedia.
• Cleveland Ironstone Formation. Wikipedia.

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