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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Baryte
Baryte
Beryl
Beryl (var. heliodor)
Bununu
Calcite
Calcite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Corundum (var. sapphire)
Demantoid with serpentine
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Fluorite
Fluorite
Fluorite
Fluorite with calcite and chalcopyrite
Fluorites
Garnetiferous schist
Granite block
Gypsum with sulphur
Hematite
Kyanite schist
Missouri River Sapphires
Montana Sapphires
Nautilus Tourmaline Pendant
Nigerian tourmalines
Pegmatite
Phosgenite
Quartz (var. agate)
Quartz (var. agate)
Rock Creek Sapphires
Sulfur
Pagination
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