Pyritised shell in Estonian phosphorites

Sophie Graul
Tallinn University of Technology, Tallinn, Estonia and France

Pyritised brachiopod shell from The Rannu Member, Kallavere Formation, Lower Ordovician.
The shells are mineralised in CAF-apatite and investigated as REE ore.

Credit

Sophie Graul (distributed via imaggeo.egu.eu)

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