Crystals of native (naturally occuring) gold. Gold is a soft,yellow,malleable transition metal. It is found in veins of quartz,as seen here,or as nuggets scattered through alluvial or glacial deposits. Gold is used in jewellery and dentistry and in electrical contacts and solders. It is chemically unreactive and has the chemical symbol Au. This specimen measures 7 x 6 cm and was found in Morro Velho's Mine,Nova Lima,Brazil | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / De Gugliemo, Roberto |
Taille de l’image : | 3295 px × 3953 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |