Cut and polished agate with colourful patterns formed from mineral impurities that were trapped as the agate formed. Agate is silica (silicon dioxide) that precipitated from liquid inside existing rock. These successive layers of precipitation are seen as the deposited silica fills hollows in the rock | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bernard, George |
Bildgröße: | 5100 px × 3445 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |