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) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Johnson, Ben |
Taille de l’image : | 3534 px × 3543 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |