Porous volcanic rock. Pumice is an example of a volcanic rock where gas bubbles form cavities inside the rock as the molten lava cools. In many cases,this means that the rock can float on water. This sample is from Iceland | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Sambraus, Daniel |
Taille de l’image : | 5156 px × 3425 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |