Ex Joan Lamond Collection. Colourless gypsum crystals on green chrysocolla (labelled as pseudomalachite). Acquired by Joan in 1995 from John Toma while on a field trip to Lake Boga. Width 9mm. Stack of 30 images.
7231 JL1610 Chrysocolla, Gypsum, Trafalgar Mine (Mount Oscar Mine), Cloncurry, Cloncurry Shire, Queensland
