Smithsonite (variety Co-bearing smithsonite)

Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 2.7 × 2.3 × 1.5 cm = 1.06” × 0.91” × 0.59”
Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”