Wikimedi'Òc

Flint breccia-floored cavity in pinstriple flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 1 (41873764381).jpg - Ser Amantio di Nicolao

Flint breccia-floored cavity in pinstriple flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 3 (28004701018).jpg - Ser Amantio di Nicolao

Flint breccia-floored cavity in pinstriple flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 4 (28004696498).jpg - Ser Amantio di Nicolao

Flint breccia-floored cavity in pinstriple flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 2 (41831169872).jpg - Ser Amantio di Nicolao

Flint breccia-floored cavity in pinstriple flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 5 (41873703061).jpg - Ser Amantio di Nicolao