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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Andradite (var. demantoid)
Andradite (var. demantoid)
Calcite with duftite
Cornetite
Demantoid Bracelet
Descloizite in dolomite
Fluorites
Hoba
Hoba
Jeremejevite
Ludlockite with smithsonite
Malachite
Malachite slab
Malachite with azurite
Malachite with cuprite, quartz, and azurite
Metatorbernite
Phosgenite
Schneider Tanzanite Ring
Smithsonite
Spessartine
Tennantite
Unusual Gems
Wulfenite
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