Posnjakite, Agardite-(Ce)
Cu4SO4(OH)6·H2O
CeCu6(AsO4)3(OH)6·3H2O
Locality:
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Field of View: 3 mm
Turqoise posnjakite crystals with olive green agardite-Ce needles.
Collection and photo: Stephan Wolfsried.

















