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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Amphibole-rock
Andradite (var. demantoid)
Andradite (var. demantoid)
Calcite with duftite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Demantoid Bracelet
Descloizite in dolomite
Fluorites
Garnetiferous schist
Granite block
Hoba
Hoba
Jeremejevite
Kyanite schist
Ludlockite with smithsonite
Malachite with azurite
Malachite with cuprite, quartz, and azurite
Missouri River Sapphires
Montana Sapphires
Muscovite schist
Pegmatite
Phosgenite
Pyritic slate
Quartz (var. agate)
Quartz (var. agate)
Rock Creek Sapphires
Smithsonite
Spessartine
Tennantite
Unusual Gems
Veszelyite
Wulfenite
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