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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Galena with chalcopyrite, sphalerite, and others
Hydroxylherderite
Imperial Topaz
Malachite
Malachite slab
Metatorbernite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Perovskite
Platinum nugget
Pyrrhotite
Quartz
Quartz (var. amethyst)
Quartz (var. rose)
Quartz (var. smoky-citrine)
Quartz Gems
Quartz Gems (var. citrine)
Rhodonite
Russian beryls
Russian chrysoberyls
Rutile
Sikhote-Alin
Sperrylite
Tiffany Amethyst Necklace
Topaz
Topaz
Topaz
Topaz
Topaz Earrings
Topaz Gems
Topaz sphere
Topaz with elbaite, lepidolite, and albite
Topaz with lepidolite
Unusual Gems
Unusual Gems
Whitney Alexandrite
Pagination
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