Tanzanite crystal (lower left) and cut and polished gemstone (upper right). Tanzanite is a blue variety of the mineral zoisite. Strongly pleochroic it displays rich blue,magenta and yellowish-grey colours when viewed from different angles | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 2663 px × 3281 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |