Molecular model showing the crystal structure of the gemstone emerald (the green form of beryl). This is an hexagonal crystal system | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Beautifulchemistry.net |
Taille de l’image : | 6000 px × 4000 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |