Red jasper. This semi-precious mineral is mainly made up of chalcedony (a type of quartz). Its reddish colour comes from the presence of other minerals such as haematite (iron oxide) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / TH FOTO-WERBUNG |
Bildgröße: | 4516 px × 3123 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |