Freibergite crystals. Freibergite is a complex sulphide mineral of silver,copper,iron,antimony and arsenic. It is an opaque,metallic steel grey to black colour and is formed in hydrothermal deposits | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5138 px × 3425 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |