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Smithsonian National Museum of Natural History
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Albite (var. moonstone)
Alexandrites
Amazonite
Amphibole-rock
Andradite (var. demantoid)
Andradite (var. demantoid)
Apophyllite with prehnite
Basalt bomb
Beryl
Beryl (var. heliodor)
Bununu
Chrome Diopside
Corundum (var. sapphire)
Dolerite
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Galena with chalcopyrite, sphalerite, and others
Garnetiferous schist
Granite block
Kyanite after andalusite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Pegmatite
Perovskite
Platinum nugget
Pyrrhotite
Russian beryls
Russian chrysoberyls
Sikhote-Alin
Sperrylite
Stalagmite
Staunton
Tiffany Amethyst Necklace
Topaz Gems
Pagination
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