Copper nuggets. Copper is one of only a few metals to occur in nature in elemental (native) form. It takes the form of reddish-brown nuggets of metal,though it is more often found combined with other elements,such as with oxygen in the form of copper oxide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Molloy, Cordelia |
Bildgröße: | 5117 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |