Natural copper crystal. Coloured scanning electron micrograph (SEM) of a naturally grown copper crystal (centre) from the Clara mine in the Black Forest, Germany. In nature, copper usually occurs as a mineral compound, and is rarely seen in crystal form. The total length of the crystal is only about 0.3 millimetres. Magnification: x280 when printed 10 centimetres wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / EYE OF SCIENCE |
Taille de l’image : | 4700 px × 3765 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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