Snowflake with a stellar (or dendritic) crystal form,made in a cloud when water freezes at negative fifteen degrees Celsius. When crystallization occurs slowly,in calm air and in temperatures near the freezing point,snowflakes will exhibit hexagonal symmetry. This is a rare combination of more than one six sided crystal | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kinsman, Edward |
Taille de l’image : | 3697 px × 3000 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|