Smithsonite (variety cobaltoan)

Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.8 × 4.7 × 4.1 cm = 1.89” × 1.85” × 1.61”
Main crystal size: 0.7 × 0.4 cm = 0.28” × 0.16”