Mixture of iron and sulphur. Mixture of iron (Fe) and sulphur (S) powders in a watch glass. They are not chemically combined. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 5159 px × 3428 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |