Geode containing stalactitic growths of chalcedony,from Chihuahua,Mexico. Chalcedony is the micro-crystalline variety of quartz. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NATURAL HISTORY MUSEUM,LONDON |
Bildgröße: | 4782 px × 4722 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |