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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Andradite (var. demantoid)
Andradite (var. demantoid)
Barite
Barite
Beryl (var. heliodor)
Bismarck Sapphire Necklace
Carmen LĂșcia Ruby
Corundum (var. sapphire)
Danburite
Diaspore
Gold
Havey Tourmaline
Kyanite
Marie Louise Diadem
Missouri River Sapphires
Oregon Sunstones
Quartz (var. amethyst)
Rock Creek Sapphires
Star of Katandru
Titanite
Zoisite ( var. tanzanite)
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