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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Basalt drill core
Basalt drill core
Basalt drill core
Beryl (var. emerald)
Chabazite
Ethiopian Opals
Georgina Emerald
Kyanite with biotite
Olivine-basalt drill core
Opal
Opal
Opal
Opal
Opal
Peridotite xenoliths in basalt
Prehnite
Unusual Gems
Unusual Gems
Unusual Gems
Vanadinite with romanechite
Weston
Zincite
Zincite
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