XHA06a, Hourt, Grand Halleux, Belgium

Pour d’autres minéraux, retour à Hourt

6 x 4,5 mm                                                                                                                                                                                         

1 x 0,75 mm                                                                                                                                                                       

0,4 x 0,3 mm                                                                                                                                                                      

1 x 0,75 mm                                                                                                                                                                       

Pour d’autres minéraux, retour à Hourt