A rich specimen formed by dioptase crystals showing their characteristic emerald green color and some with minute quartz. Dioptase crystals show predominant trigonal prism sharp faces with rhombohedral terminal faces. Excellent brilliance and some transparence. On a matrix covered by botryoidal sky blue chrysocolla aggregates. THE MAIN CRYSTAL IS: 1,3 x 0,6 x 0,5 cm.