Cuprite twinned crystals. The mineral cuprite is a pure copper oxide (Cu2O),formed in the oxidation zone of copper deposits. Its crystal system is cubic hexoctahedral. It forms well-developed crystals that are cubic,octahedral (see C017/9266) or dodecahedral. The paired,interlocking crystals in this sample are an example of penetration twinning. Colours may be black,red or green. This specimen is 11 centimetres across | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5253 px × 3388 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |