Scheelite. Sample of the mineral scheelite (calcium tungstate), an important ore of tungsten. This is a white form of the mineral, which can also be yellow, reddish-grey or green. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4500 px × 4501 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |