Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia.

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

Pyritised brachiopod shell fragment from the Toolse phosphorite deposit, Estonia.
The pyrite micro crystallisations tend to develop due to the breakdown of organic matter during diagenesis.
Sample from the Suurjõgi Member, Kallavere Formation, Tremadocian.

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Type Image Format JPG Size 1.2 MB Width 1846 px Height 954 px Aspect 923:477 Taken 2022 Coordinates 59.5321, 26.3427 Tint Light gray Submitted 2 June 2024

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