Oct 31, 2016 - Spangolite, Cu6Al(SO4)(OH)12Cl•3(H2O), Slag locality, Avissalos, Serifos Island, Cyclade Islands, Kykládes Prefecture, Aegean Islands Department, Greece. Fov 1.06 mm. Spangolite 2 crystals close together. Copyright: © Ko Jansen