Dioptase with Calcite

Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1973)

Specimen size: 8.5 × 5.4 × 5.1 cm = 3.35” × 2.13” × 2.01”
Main crystal size: 0.2 × 0.1 cm = 0.08” × 0.04”