Geminite (x 1400),
Cu2AsO2O7.3H2O
Cap Garonne, Var, France
Photo & Coll. MHNG.
Geminite on quartz (field size 2cm),
Cu2AsO2O7.3H2O
Cap Garonne, Var, France
From type material, with typical clear sea green color
Photo and Coll. P. Perroud (now in NHM Geneva).
Geminite (xls = 0.3 mm),
Cu2AsO2O7.3H2O
Cap Garonne, Var, France
Photo R. Vernet, Coll. A. Iltis