Translucent white and lustrous 'nail-head' type prismatic Calcite crystals (to 15mm) have grown in clusters and isolated crystals on a larger flattened rhombohedral Calcite crystal. This large crystal is 60 x 50mm with a lilac coloured core, which in turn is covered in a later generation of Calcite displaying a 'satin' like lustre. The contrast between the different generations of Calcite growth and their differing habits is very aesthetic.