Smithsonite (variety cobaltoan)

Tsumeb Mine, Tsumeb, Otjikoto Region  Namibia

Specimen size: 4.8 × 3.4 × 4.8 cm = 1.89” × 1.34” × 1.89”
Main crystal size: 1.3 × 1.2 cm = 0.51” × 0.47”