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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Mezö-Madaras
Nautilus Tourmaline Pendant
Nephrite Bowl
Nigerian tourmalines
Perovskite
Phosgenite
Platinum nugget
Pyrrhotite
Russian beryls
Russian chrysoberyls
Sikhote-Alin
Smithsonite
Sperrylite
Spessartine
Sylvanite
Tennantite
Tiffany Amethyst Necklace
Topaz Gems
Unusual Gems
Wulfenite
Zagami
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