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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Attaway Ametrine
Beryl (var. emerald)
Bismuth
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Dyber Ametrine
Farmville
Granite block
Kermesite with senarmontite and dolomite
Kyanite schist
Magombedze
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
Titanite
Unusual Gems
Vanadinite with romanechite
Veszelyite
Vivianite with pyrite
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