Sample of haematite containing transparent quartz crystals. Haematite is a mineral formed of iron (III) oxide, which is the principal ore of iron. Iron is the most widely-used metal on Earth. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA |
Modell-Rechte: | nicht erforderlich |
Länge: | 29 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |