An excellent specimen of tan to deep brown coloured Siderite with Chalcopyrite on characteristic white Quartz from the Virtuous Lady Mine, Devon. Crystallized spheres of Siderite measuring to 1cm diameter, display an outer surface of inter locking fish scale habit crystals, formed on contrasting white radial prismatic Quartz crystals. Interspersed between the crystals of Quartz are striatedcrystals of Chalcopyrite, on a green-grey Chlorite matrix. A super specimen from one of Devon's most celebrated mines.