Amethyst. This mineral,a transparent purple variety of quartz,is used as a gemstone and is the birthstone of February | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 3720 px × 4698 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |