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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Aurichalcite with hemimorphite
Beryl
Beryl
Beryl (var. heliodor)
Beryl (var. heliodor)
Bununu
Clinohumite
Corundum (var. ruby)
Corundum (var. sapphire)
Demantoid with serpentine
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Gypsum with sulphur
Limestone with chert
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Opal bone
Phosgenite
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Sandstone
Spinel
Spinel
Sulfur
Unusual Gems
Vanadinite with romanechite
Vigarano
Zagami
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