Quartz. Sample of a crystal of the mineral quartz, one of the commonest minerals in the Earth's crust. A form of silicon dioxide (silica), it is found in a wide variety of colours and forms. This colourless variety is called rock crystal and is widely used as an ornamental stone. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4500 px × 4500 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |