Topaz. View of a blue topaz in celandite. Topaz is 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 (as here),pink,green,violet or reddish-yellow. Clear or finely coloured varieties have always been used as gemstones. This specimen was found in the Ural Mountains,Russia | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Degginger, E.R. |
Bildgröße: | 4679 px × 3780 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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