Light micrograph of sand grains from the Sahara Desert. Sand is composed largely of the mineral quartz, and has particles which range in size from 0.06 to 2 millimetres in diameter. Sand from desert regions, which is windblown, tends to be more rounded than marine sand, which is shaped by water movement. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source / Nano Creative |
Bildgröße: | 5906 px × 4430 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |