Double platform blade core Pleistocene, Late Palaeolithic (Alleröd - Younger Dryas, GI-1a - GS-1)
Chert : 2D documentation Jurassic/Cretaceous from Miocene sediments
Chert : 3D documentation Jurassic/Cretaceous from Miocene sediments
Chocolate' flint : 2D documentation Upper Jurassic
Villemaur-sur-Vanne : 2D documentation Cretaceous
Chocolate' flint : 3D documentation Upper Jurassic
Villemaur-sur-Vanne : 3D documentation Cretaceous
Chocolate' flint : 2D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 2D documentation Upper Jurassic