Sapphires. Sapphire is a highly prized,deep blue,transparent variety of the mineral corundum (aluminium oxide). Small amounts of iron and titanium give it its colour. Sapphires are found in Sri Lanka,Burma,Thailand,Kashmir,Australia,Afghanistan and Montana (USA). Those seen here were panned from river gravels and have been smoothed and rounded by abrasion | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Fleming, Vaughan |
Taille de l’image : | 5065 px × 3512 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |