Dioptase     Omaue Mine, Kaokveld, Namibia.  Ex. Anthony Dunn collection, circ. 1973.  This 3.3 x 2.5 x 2.5 cm piece has numerous fine dioptase crystal placed high on and along the edge of its matrix.  Fantastic color and clarity to all the crystals.  No damage on this beautiful thumbnail specimen.  $950