Dioptase     Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia, South West Africa.  Ex. Thomas G. Fowler collection.  3.2 x 2.5 x 2.5 cm, three dimensional piece that shows well from any direction.  Outstanding translucence to transparency!  One crystal group on front shows micro abrasions.  Great crystals on light duftite?  Coated matrix.  Large but does fit in the perky box.  A great TN specimen in all regards!  $350