Jasper mineral breccia. Jasper is an impure form of quartz,a silicate mineral. This sample,with its large fragments of jasper,has been broken up by a natural physical process and then recompressed,cementing it into a breccia. This describes a rock made up of fragments within a matrix of a different material. The polished slab measures 150 millimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 4882 px × 3898 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |