Smithsonite (variety cobaltoan)

Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 3.9 × 3.6 × 1.9 cm = 1.54” × 1.42” × 0.75”
Main crystal size: 1.3 × 0.8 cm = 0.51” × 0.31”