Cervandonite-(Ce), 8 mm,
(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)1–x+y(AsO3)1+x–y(OH)3x–3y (x=0,47 y=0,31)
Wannigletscher, Cherbadung (Cervandone), Binntal, Valais (Wallis), Switzerland
Photo & Coll. T. W. Gabriel, SVSMF.
Schweizer Strahler, 1988, Vol.8, Nr.1.