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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Cape York
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Estherville meteorite
Folded anorthosite
Homestead
Kyanite schist
Missouri River Sapphires
Montana Sapphires
Muscovite schist
Pyritic slate
Quartz (var. agate)
Quartz (var. agate)
Rock Creek Sapphires
Tugtupite
Veszelyite
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