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Smithsonian National Museum of Natural History
GeoGallery
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Andradite (var. demantoid)
Andradite (var. demantoid)
Attaway Ametrine
Barite
Barite
Beryl (var. heliodor)
Cordierite (var. iolite)
Corundum (var. sapphire)
Danburite
Diaspore
Dyber Ametrine
Elbaite and Nephrite Bracelet
George Pendant
Gold
Havey Tourmaline
Hologem Fire Opal Pendant
Kyanite
Missouri River Sapphires
Opal
Opal
Paraiba Tourmaline
Pearl and Peridot Haircomb
Picasso Kunzite Necklace
Quartz (var. amethyst)
Quartz Pendant
Rock Creek Sapphires
Titanite
Topaz Pendant
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