“Acicular crystals of serpierite a beautiful blue. The aggregate at the center of the photo is in the form called "a sheaf", others are "sunshine". Collection and photo of Gianfranco Ciccolini. Nikon D90, bellows, Schneider Componon 35mm f/4. Opening focal used: 4.7”
Gianfranco Ciccolini - 7th March 2015