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Smithsonian National Museum of Natural History
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Andradite (var. demantoid)
Andradite (var. demantoid)
Barite
Barite
Beryl (var. heliodor)
Beryl (var. heliodor)
Calcite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Danburite
Diamond Ring
Diaspore
Elbaite
Elbaite
Enstatite
Fluorite
Gold
Havey Tourmaline
Kyanite
Lacloche Diamond Bracelet
Missouri River Sapphires
Mogul Emerald Necklace
Opal
Phosgenite
Poudretteite
Quartz (var. amethyst)
Quartz (var. amethyst)
Rhodonite
Rock Creek Sapphires
Rutile
Sokol Diamond Necklace
Sokol Emerald Necklace
Spinel
Tiffany Amethyst Necklace
Tiffany Diamond and Ruby Bracelet
Tiffany Diamond Bracelet
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