Manganite crystals. This mineral consists of a combination of both manganese oxide and manganese hydroxide,characterised by short prismatic crystals. This specimen is from Ilfeld in the Harz Mountains,Germany,and measures 110 mm across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5197 px × 3465 px |
Model Release : | Non requis |
Restrictions : | - |