Quartz types. Colourless and smoky quartz crystals,including amethyst and citrine,a milky quartz carving,and star and rose quartz. Quartz (silicon dioxide) is the most common mineral on Earth | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 4497 px × 3886 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |