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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)
Calcite
Cordierite (var. iolite)
Corundum (var. sapphire)
Danburite
Diaspore
Diopside
Dyber Ametrine
Emerald Carving
Enstatite
Fluorite
George Pendant
Gold
Havey Tourmaline
Hologem Fire Opal Pendant
Kyanite
Missouri River Sapphires
Nigerian tourmalines
Opal
Opal
Opal
Phosgenite
Quartz (var. amethyst)
Quartz (var. amethyst)
Rhodonite
Rock Creek Sapphires
Rutile
Titanite
Titanite
Topaz
Topaz
Pagination
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