Chalcocite-Digenite Group, Calcite
Kirkebukta copper prospect, Løvøya, Borre, Horten, Vestfold, Norway
Sample labelled as "kobberglans" (chalcocite-digenite group) showing typical irregulary blue-blackish masses embedded in calcite. From Kirkebukta Cu-prospect, Løvøya, Horten, Vestfold, Norway.
Natural History Museum, Oslo specimen, inventory # KNR 585.
Photo published in
Larsen, K. E. (2016) Kobberforekomsten i Kirkebukta, Løvøya, Horten, ...
© Knut Edvard Larsen/NHM