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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Pyrrhotite
Russian beryls
Russian chrysoberyls
Scapolite
Sikhote-Alin
Smithsonite
Sperrylite
Spessartine
Spinel Bracelet
Spinels
Star of Asia
Tennantite
Tiffany Amethyst Necklace
Topaz Gems
Unusual Gems
Wulfenite
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