Scanning electron micrograph (SEM) of a four-micrometre size iron crystal growing on a pyroxene (calcium-magnesium-iron silicate) crystal from the Apollo 15 Hadley-Apennine lunar landing site. The well developed crystal faces indicate that the crystal was formed from a hot vapour as the rock was cooling. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / NASA |
Taille de l’image : | 5562 px × 4748 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |