Ullmannite. Crystals (black) of the mineral ulmmannite. This is a sulphide of nickel and antimony (NiSbS). Well-developed crystals like the ones seen here are rare. The sample is 4.5 centimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5422 px × 3699 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |