Rare dioptase XX on matrix from the Tsumeb Mine, Namibia. This high-quality mineral specimen displays green-turquoise, lustrous, prominent dioptase crystals on a reddish-brown matrix. Mineral: Dioptase XX Dimensions: 38 x 22 x 11 mm Weight: 9.89 g Origin: Tsumeb Mine, Namibia Special Feature: Rare specimen with lustrous crystals Offer No.: 11369 Mineral stand not included. Combined shipping available.