Granite specimen. The different minerals in granite are shown by the various colours: white and pink areas are feldspars,black areas are tourmaline,while the grey and translucent areas are quartz | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 4505 px × 3879 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |