Gold in its host rock. Close-up of gold in a silica host rock. This specimen is from Transylvania,Romania | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / PETR JAN JURACKA |
Bildgröße: | 3981 px × 2657 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |