Callaghanite / Callaghanit
Deep blue crystals of callaghanite. Gabbs, Nevada, USA. Picture size 4 mm. Collection and foto Thomas Witzke.
Tiefblaue Callaghanit-Kristalle. Gabbs, Nevada, USA. Bildbreite 4 mm. Sammlung und Foto Thomas Witzke.
© Thomas Witzke / Stollentroll