Azurite crystals. The specimen at top right is polished,the specimen at bottom is in its natural state. Azurite is a hydrated copper carbonate mineral. Its name refers to its colour,azure. In medieval times,the mineral was ground up and used by painters as a blue pigment. Azurite's colour also makes it popular with mineral collectors | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Biddle, Paul |
Bildgröße: | 4488 px × 4545 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |