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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Beryl (var. heliodor)
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Hubnerite with quartz
Kyanite schist
Missouri River Sapphires
Montana Sapphires
Muscovite schist
Opal
Pyritic slate
Quartz (var. agate)
Quartz (var. agate)
Rhodochrosite with quartz
Rhodonite
Rock Creek Sapphires
Tetrahedrite
Topaz Gems
Veszelyite
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