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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Baryte with berthierite
Carlton iron meteorite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Cronstedtite
Fort Stockton
Kyanite schist
Mezö-Madaras
Missouri River Sapphires
Montana Sapphires
Muscovite schist
Plainview
Plantersville
Pyritic slate
Quartz (var. agate)
Quartz (var. agate)
Rock Creek Sapphires
Sylvanite
Topaz Gems
Topaz Pendant
Veszelyite
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