Ilvaite mineral sample. This mineral is a sorosilicate (silicate-hydroxide complex) containing iron and calcium. Here,it has formed black prismatic crystals. The white crystals are those of calcite and quartz. This sample,from Rio Marina on Elba,Italy,is 4.5 centimetres across | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5138 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |