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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Afghanite with calcite
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Basalt bomb
Bastnäsite with quartz
Chrome Diopside
Conchita Montana Sapphire Butterfly
Corundum (var. ruby)
Corundum (var. sapphire)
Elbaites
Fluorite
Galena with chalcopyrite, sphalerite, and others
Kyanite schist
Limestone with chert
Missouri River Sapphires
Montana Sapphires
Opal
Opal bone
Perovskite
Picasso Kunzite Necklace
Platinum nugget
Pollucite
Pyrrhotite
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quinn Canyon
Rock Creek Sapphires
Roebling Opal
Russian beryls
Russian chrysoberyls
Sandstone
Sikhote-Alin
Sperrylite
Tiffany Amethyst Necklace
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