A pale blue sapphire,one of the gem varieties of corundum. It has a milky appearance that is caused by many tiny hair-like inclusions of another mineral within the sapphire. This phenomenon is known as silk' due to its silky appearance. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NATURAL HISTORY MUSEUM,LONDON |
Bildgröße: | 3001 px × 2825 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |