Whewellite, 3.3mm,
CaC2O4.H2O
Condorcet; Drôme, France -
Photo & Coll. R. Martin
Whewellite, heart shaped twins, 1.7mm,
CaC2O4.H2O
Condorcet; Drôme, France -
Photo & Coll. R. Martin
R. Martin, La whewellite de Condorcet (Drôme, France),
Der Whewellit von Condorcet (Drôme, F)
Schweizer Strahler, 1989, Vol. 8, Nr. 7 and 1990, Vol. 8, Nr.9.