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Smithsonian National Museum of Natural History
GeoGallery
Breadcrumb
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Agate
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Basalt bomb
Beryl
Beryl (var. heliodor)
Bununu
Calcite
Chrome Diopside
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Galena with chalcopyrite, sphalerite, and others
Gypsum
Gypsum
Hemimorphite
Mimetite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Perovskite
Platinum nugget
Pyrite with calcite
Pyrrhotite
Quartz (var. agate)
Russian beryls
Russian chrysoberyls
Sikhote-Alin
Sinuous Gypsum
Sperrylite
Tiffany Amethyst Necklace
Topaz Gems
Wulfenite
Zagami
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