Opal mine. Mine construction machines at an opal mine in Coober Pedy,South Australia. Opal is the national gemstone of Australia,which produces 97 per cent of the world's supply. South Australia alone produces around 80 per cent of the world's supply | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Bildagentur-online / Mcphoto-Schulz |
Taille de l’image : | 3969 px × 2646 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |