False colour scanning electron micrograph (SEM) of crystals of calcium carbonate,one of the gritty precipitates responsible for hard water. Magnification: x 200 at 35mm size. Original is bw print A600/264 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 3403 px × 4447 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |