Tabular chert of the Abensberg-Arnhofen type : 2D documentation Upper Jurassic
Tabular chert of the Abensberg-Arnhofen type : 3D documentation Upper Jurassic
Gray white-spotted flint : 3D documentation Turonian
Villemaur-sur-Vanne : 2D documentation Cretaceous
Cretaceaous flint from Brzoza village : 3D documentation Upper Cretaceous
Villemaur-sur-Vanne : 3D documentation Cretaceous
Gray white-spotted flint : 2D documentation Turonian
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 2D documentation Upper Jurassic
Cretaceaous flint from Brzoza village : 2D documentation Upper Cretaceous