Herkimer diamonds. Herkimer diamonds are not real diamonds but rather consist of very clear quartz,a silicon dioxide mineral. They are used as decorative stones in jewellery. These samples were found inside the rock shown,which dates from the Cambrian era (540-490 million years ago). The largest stone shown here measures 14 millimetres across | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 4733 px × 3717 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |