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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
Demantoid Bracelet
Descloizite in dolomite
Elbaites
Fluorites
Granite
Havey Tourmaline
Hoba
Hoba
Jeremejevite
Limestone with chert
Ludlockite with smithsonite
Malachite with azurite
Malachite with cuprite, quartz, and azurite
Opal
Opal bone
Paragould
Phosgenite
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Smithsonite
Smithsonites
Spessartine
Staurolite schist
Success meteorite
Tennantite
Uncle Sam Diamond
Unusual Gems
Wulfenite
Yellow diamond crystal
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