Smithsonite (variety cobaltoan)

Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 5.4 × 4.4 × 2.4 cm = 2.13” × 1.73” × 0.94”
Main crystal size: 1.2 × 0.7 cm = 0.47” × 0.28”