Lapis lazuli specimen. Polished slab of lapis lazuli from Afghanistan containing some brassy-coloured pyrite. Lapis lazuli (sodium calcium aluminum silicate sulphur sulphate) is a rich blue opaque,semi-precious mineral,with the rich colour due to the sulphur in its composition | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Natural History Museum, London |
Bildgröße: | 4595 px × 3803 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |