Plattenhornstein chert of the Abensberg-Arnhofen type : 2D documentation Upper Jurassic
Plattenhornstein chert of the Abensberg-Arnhofen type : 3D documentation Upper Jurassic
Jurassic flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 2D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Świeciechów flint : 3D documentation Turonian
Chocolate' flint : 2D documentation Upper Jurassic
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Scandynavian Senonian Flint : 3D documentation Maastrichtian
Banded flint : 2D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Jurassic flint : 2D documentation Upper Jurassic
Scandynavian Senonian Flint : 2D documentation Maastrichtian
Cuiry-lès-Chaudardes : 2D documentation Cretaceous
Cuiry-lès-Chaudardes : 3D documentation Cretaceous
Świeciechów flint : 2D documentation Turonian
Chocolate' flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)