Jurassic flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Chert : 3D documentation Jurassic/Cretaceous from Miocene sediments
Chert : 3D documentation Jurassic/Cretaceous from Miocene sediments
Chert : 3D documentation Jurassic/Cretaceous from Miocene sediments
Flint from Spiennes : 3D documentation Maastrichtian
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Blok krzemienny 138 [brak danych] mezolit ?
Blok krzemienny 137 [brak danych] paleolit schyłkowy?
Cuiry-lès-Chaudardes : 3D documentation Cretaceous
Chocolate' flint : 3D documentation Upper Jurassic
Jurassic flint : 3D documentation Upper Jurassic
Jurassic flint : 3D documentation Upper Jurassic
Chocolate' flint : 2D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chert : 3D documentation Jurassic/Cretaceous from Miocene sediments
Cretaceous flint from Rijckholt-St.Geertruid mine : 3D documentation Upper Cretaceous (Maastrichtian)
Plattenhornstein chert of the Abensberg-Arnhofen type : 3D documentation Upper Jurassic
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Chocolate' flint : 2D documentation Upper Jurassic
Szentgál radiolarite : 3D documentation Middle Jurassic