Orbicular jasper,cut and polished surface. Jasper is a microcrystalline variety of quartz (chalcedony). Impurities in the mineral,such as iron oxide,give jasper its red colour | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bond, Martin |
Bildgröße: | 4255 px × 5285 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |