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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Albite (var. moonstone)
Amazonite
Apophyllite with prehnite
Aurichalcite with hemimorphite
Beryl
Demantoid with serpentine
Dolerite
Estherville meteorite
Gypsum with sulphur
Homestead
Kyanite after andalusite
Phosgenite
Sandstone
Stalagmite
Staunton
Sulfur
Unusual Gems
Vigarano
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