Quartz crystal,Nikolaevsky Mine,Dalnegorsk,Russia. Quartz,chemically silicon dioxide,is one of the most common rock-forming minerals. Its crystals are of the hexagonal system and commonly form a six-sided prism | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Schneider, Mark A. |
Taille de l’image : | 2550 px × 3848 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|