Smithsonite is zinc carbonate in candy pastels — botryoidal crusts and rare faceted gems in mint, sky-blue, lilac and peach with a silky, pearly luster all their own. Namibia’s Tsumeb and Mexico’s Choix produced the legends. Hardness 4–4.5: a collector’s darling.GEMIC Institute’s smithsonites are natural, certified in our Siem Reap laboratory, photographed piece by piece. Unique specimens; tracked worldwide delivery, 30-day inspection period.