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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Afghanite with calcite
Attaway Ametrine
Bastnäsite with quartz
Bismuth
Conchita Montana Sapphire Butterfly
Corundum (var. ruby)
Corundum (var. sapphire)
Dyber Ametrine
Elbaites
Fluorite
Kyanite schist
Limestone with chert
Missouri River Sapphires
Montana Sapphires
Opal
Opal bone
Paravauxite
Phosphophyllite
Picasso Kunzite Necklace
Pitts
Pollucite
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz Gems
Quinn Canyon
Rock Creek Sapphires
Roebling Opal
Sandstone
Southwest Sunset
Veszelyite
Vivianite with pyrite
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