Falster flint Maastrichtian
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Banded flint : 2D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Rügen flint : 3D documentation Cretaceous
Rügen flint : 2D documentation Cretaceous
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