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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Attaway Ametrine
Baryte with berthierite
Beryl (var. emerald)
Bismuth
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Cronstedtite
Dyber Ametrine
Farmville
Granite block
Kyanite schist
Mezö-Madaras
Missouri River Sapphires
Montana Sapphires
Paravauxite
Phosphophyllite
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz Gems
Quartz Pendant
Rock Creek Sapphires
Southwest Sunset
Sylvanite
Unusual Gems
Vanadinite with romanechite
Veszelyite
Vivianite with pyrite
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