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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Attaway Ametrine
Azurite
Basalt
Bismuth
Cafarsite
Diaspore
Diaspore
Dyber Ametrine
Fluorite with quartz
Fluorites
Kyanite schist
Magnetite
Milarite with chlorite
Opal in matrix
Opals
Orthoclase (var. adularia)
Paravauxite
Phosphophyllite
Quartz (var. ametrine)
Quartz (var. smoky quartz)
Quartz Gems
Siderite
Southwest Sunset
Spindle Bomb
Vivianite with pyrite
Wulfenite
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