Chocolate' flint : 2D documentation Upper Jurassic
Speckled Senonian Flint : 3D documentation Maastrichtian
Lessini Flint : dokumentacja [2D] Dolna Kreda; Biancone formacja
Cuiry-lès-Chaudardes : 3D documentation Cretaceous
Chocolate' flint : 2D documentation Upper Jurassic
Cretaceous flint from Rijckholt-St.Geertruid mine : 2D documentation Upper Cretaceous (Maastrichtian)
Villemaur-sur-Vanne : 2D documentation Cretaceous
Abilly la Claisière : 2D documentation Turonian
Villemaur-sur-Vanne : 2D documentation Cretaceous
Chocolate' flint : 3D documentation Upper Jurassic
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Chocolate' flint : 3D documentation Upper Jurassic
Scandynavian Senonian Flint : 3D documentation Maastrichtian
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Banded flint : 2D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Villemaur-sur-Vanne : 3D documentation Cretaceous
Krzemień kredowy : dokumentacja [3D] górna kreda
Krzemień kredowy : dokumentacja [3D] górna kreda
Cretaceous flint from Rijckholt-St.Geertruid mine : 3D documentation Upper Cretaceous (Maastrichtian)
Jurassic flint : 2D documentation Upper Jurassic