Haematite. This mineral ore (iron oxide,formula: Fe2O3) is mined as the principal source of the metallic element iron. Kidney ore,the botryoidal (grape-like) form of haematite,is seen at centre right. Here it is a dull red,though haematite's colour can vary from black to steel grey. It is a common and widely-distributed mineral with industrial uses in paint manufacture (as a red pigment) and in polishing compounds | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Biophoto Associates |
Taille de l’image : | 3840 px × 2634 px |
Model Release : | Non requis |
Property Release : | Non requis |
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