Quartz crystals (silicon dioxide). Quartz is one of the commonest minerals in the Earth's crust. It is found in a wide variety of colours and forms. This colourless variety is called rock crystal and is widely used as an ornamental stone | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 3681 px × 4748 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |