Native gold on quartzite. Close-up of a vein of gold in a quartzite host rock. Quartzite is a hard metamorphic rock that originates from sandstone that has been heated and compressed,usually during tectonic compression | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5173 px × 3449 px |
Model Release : | Non requis |
Restrictions : | - |