Native copper. Sample of copper in the form in which it was dug out of the ground. Copper is a metal element with high electrical and thermal conductivities | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / PETR JAN JURACKA |
Taille de l’image : | 5184 px × 3461 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |