Smithsonite

The zinc carbonate chameleon

Smithsonite, a mineral specimen
Mineral

Smithsonite is a zinc carbonate mineral that forms in the oxidation zones of zinc ore deposits, occurring in a remarkable range of colors including blue, green, pink, yellow, and lavender. It's named after James Smithson, the British mineralogist whose bequest founded the Smithsonian Institution.

Composition

zinc carbonate (ZnCO₃)

Where Found

Kelly Mine (New Mexico, USA), Tsumeb (Namibia), Broken Hill (Zambia), Laurion (Greece), Sardinia (Italy)

Mohs Hardness

4-4.5

Fun Fact

James Smithson, who smithsonite is named after, never visited America — yet his fortune and mineral collection founded the Smithsonian Institution, now the world's largest museum complex.

Test Your Knowledge

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Photo Attribution

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