Cassiterite crystal (brown),a tin oxide,amongst quartz. Cassiterite has been the main tin ore throughout history and is still the most important source of tin today. Specimen from Turnavore mine,St. Agnes,Cornwall,UK | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Natural History Museum, London |
Taille de l’image : | 2506 px × 3486 px |
Model Release : | Non requis |
Restrictions : | - |