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Diélette mine, France
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Magnetite, Diélette mine, Manche, France. This historic mine, which closed in 1962, operated under the sea. The main ore, rich in iron, was magnetite, an iron oxide. Specimen 7x4x2.5cm with traces of iron pyrite in a carbonate gangue rich in black magnetite. Handwritten label and original cardboard box from the Chadel collection.