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
Płytka kościana [3D] XII wiek - chronologia nawarstwień
Javelin head [3D] XI-XII century - chronolgy of the layers
Cretaceous flint from Rijckholt-St.Geertruid mine : 3D documentation Upper Cretaceous (Maastrichtian)
Chocolate' flint : 3D documentation Upper Jurassic
Tabular chert of the Baiersdorf-type : 3D documentation Tithonian/Upper Jura
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Grand-Pressigny flint : 3D documentation Turonian
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Krzemień kredowy : dokumentacja [3D] górna kreda