Lustrous emerald to blue-green crystals of Dioptase measuring to 1.3cm display a two phase growth, interrupted by a formation of yellow-green druse of Conichalcite, on the first deposition of Dioptase. Micro- rhombic crystals of Calcite are very sparsly scattered over the last phase of Dioptase and the Conichalcite. On a matrix of white Calcite on reddish Dolomite, from the famous Tsumeb Mine.