Apatite crystals in their host rock. Apatite (a calcium phosphate mineral) is the mineral form of calcium that is used to make bones and teeth. It is one of the few minerals that are produced and used by biological systems. This sample was found in Greifenstein,Germany,and measures 110mm across | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5125 px × 3417 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |