Banded rhyolite specimens. This igneous rock is often mistaken for an agate. Specimen from Peru,largest specimen approximately 5 centimetres high | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Natural History Museum, London |
Taille de l’image : | 5535 px × 3157 px |
Model Release : | Non requis |
Restrictions : | - |