Jasper is form of chalcedony,an opaque impure variety of silica,which is often speckled and veined | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 3567 px × 4899 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |