Quartz needle crystals. Slender quartz crystals (so-called 'needle quartz') with orange crystals of anatase,a titanium oxide mineral. This specimen,about 1 centimetre across,is from the Bedretto valley,Ticino,in the Swiss Alps | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Alean, Dr. Juerg |
Taille de l’image : | 5119 px × 3413 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |