Minium powder. Minium is lead oxide (rust). It forms by oxidation of primary lead ores,such as galena (lead sulphide) and is almost always powdery with a yellowish red color. Minium is used as a pigment in paints and dyes,but health concerns about lead have reduced this use | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5125 px × 3417 px |
Model Release : | Non requis |
Restrictions : | - |