Crystal garden
Numéro d’image : 11520742
| Side view of a "crystal garden". The long coloured streamers are the crystals themselves. The medium in which they grow is a saturated solution of sodium silicate or water glass. A number of different crystals are growing in this garden (not all of which are visible here). Each type has a characteristic colour; copper nitrate (light blue),cobalt chloride (dark blue),ammonium iron (III) sulphate (brown),magnesium nitrate (white) and iron (II) sulphate (green). Crystals form when a saturated solution of a suitable substance is either cooled or has some of its solvent removed by evaporation. The growth usually starts around small introduced seed crystals | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Taylor, David |
| Taille de l’image : | 3455 px × 5145 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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