Greisen, from Germany.Greisen is a highly altered granitic rock or pegmatite. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Degginger, Phil |
Taille de l’image : | 6282 px × 4693 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |