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Smithsonian National Museum of Natural History
GeoGallery
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Amphibole-rock
Baryte with berthierite
Beryl
Beryl (var. heliodor)
Bununu
Corundum (var. sapphire)
Cronstedtite
Demantoid with serpentine
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Garnetiferous schist
Granite block
Gypsum with sulphur
Mezö-Madaras
Nautilus Tourmaline Pendant
Nigerian tourmalines
Pegmatite
Phosgenite
Sulfur
Sylvanite
Unusual Gems
Vigarano
Zagami
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