Silica rock crystal samples. Large hexagonal pyramidic crystals of silicon dioxide (silica) that formed inside granite. These samples are part of the Geoscope geological park,located between Les Monts-Vert and Albaret-Sainte-Marie,central France | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 5722 px × 3071 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |