Alexandrite crystals. Alexandrite is a variety of the mineral chrysoberyl,an aluminate of beryllium. Unlike normal chrysoberyl,alexandrite has the property of changing colour depending on the nature of the light it is viewed with,the so called 'alexandrite effect' | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5125 px × 3417 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |