Magnetite crystals. Magnetite is an iron oxide (Fe3O4) that is one part wustite (FeO) and one part haematite (Fe2O3). Naturally occurring magnetite is the strongest magnetic mineral on Earth. This specimen measures 85mm across,and was found in Cerro Huanaquino,NW of Potosi,Bolivia | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5125 px × 3417 px |
Model Release : | Non requis |
Restrictions : | - |