Polarised light micrograph of a thin crystalline film of a mixture of aluminium potassium sulphate (Potash alum) and ammonium iron sulphates (Mohr's salt). Magnification: x70 when printed 10cm wide. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gaff, Karl |
Bildgröße: | 5304 px × 7952 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |