Dioptase with Calcite

Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia (±1975)

Specimen size: 6.2 × 5.9 × 2.9 cm = 2.44” × 2.32” × 1.14”
Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”