KSENIYA SHUTURMINSKA / SCIENCE PHOTO LIBRARY KSENIYA SHUTURMINSKA / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of calcium phosphate platelets that have been grown in a mineralising solution. The purple octagonal shapes are silicon (Si) containing impurities found in this particular sample. The platelets have bundled up to form a tree branch-like structure.
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