Barite crystals. Barite is a barium sulphate mineral and is generally white or colourless. It is the main source of barium | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 4855 px × 3673 px |
Model Release : | Non requis |
Restrictions : | - |