XX3, Hourt, Grand Halleux, Belgium

S’agit-il du même minéral que XX2 ? Oui, probablement.

2 x 1,6 mm                                                                                                                          

1 x 0,8 mm                                                                                                                          

1 x 0,8 mm                                                                                                                                  

0,5 x 0,4 mm                                                                                                                               

Pour d’autres minéraux, retour à Hourt