Lumps of iron ore. The ore seen here is the earthy,granular form of hematite - iron(III) oxide. This is the most important ore of iron,and is widespread. It is a common accessory mineral to igneous rocks,especially lavas,but is also found in sedimentary formations. This granular form when crushed is used as a polishing powder and as a pigment (red ochre) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Johnson, Ben |
Bildgröße: | 3534 px × 3543 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |