Japanese twin quartz crystal. Japanese twins are a rare form of twin crystallization of the mineral quartz. They consist of two crystals joining at an exact angle of 84 degrees,33 minutes. This specimen,about 2 centimetres across,is from the Peruvian Andes | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Alean, Dr. Juerg |
Bildgröße: | 5120 px × 3413 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |