Turquoise. Raw specimen of turquoise (hydrated copper aluminium phosphate). This mineral is one of the most valuable non-transparent minerals. It has been used in jewellery since ancient Egyptians times. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA |
Modell-Rechte: | nicht erforderlich |
Länge: | 27 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |