Topaz. View of a sample of topaz a silicate mineral made of aluminium silicate. Topaz is a very hard stone,often transparent or translucent with a vitreous lustre. It is often colourless,but can be coloured,yellow,blue,pink,green,violet or reddish-yellow. Clear or finely coloured varieties have always been used as gemstones | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Michler, Astrid & Hans-Frieder |
Taille de l’image : | 3640 px × 2480 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |