Calcium crystals. Coloured scanning electron micrograph (SEM) of calcium-containing crystals (blue) and bacteria (lower centre) in a toilet. The crystals are calcium salts deposited as water in the toilet evaporates. Magnification: x725 at 6x7cm size. x1150 at 5x4ins | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / EYE OF SCIENCE |
Taille de l’image : | 3334 px × 4216 px |
Model Release : | Non requis |
Property Release : | Non requis |
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