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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Attaway Ametrine
Basalt drill core
Basalt drill core
Basalt drill core
Bismuth
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Dyber Ametrine
Estherville meteorite
Homestead
Hubnerite with quartz
Kyanite schist
Missouri River Sapphires
Montana Sapphires
Olivine-basalt drill core
Opal
Paravauxite
Peridotite xenoliths in basalt
Phosphophyllite
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. ametrine)
Quartz Gems
Rhodochrosite with quartz
Rhodonite
Rock Creek Sapphires
Southwest Sunset
Tetrahedrite
Veszelyite
Vivianite with pyrite
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