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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
Chinguetti
Clinohumite
Corundum (var. ruby)
Corundum (var. sapphire)
Demantoid with serpentine
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Gypsum with sulphur
Monazite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Peridot gemstones
Phosgenite
Sandstone
Spinel
Spinel
Sulfur
Unusual Gems
Vigarano
Zagami
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