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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Basalt drill core
Basalt drill core
Basalt drill core
Beryl (var. emerald)
Elbaite
Elbaites
Granite
Havey Tourmaline
Olivine-basalt drill core
Opal
Opal
Opal replacing wood
Peridotite xenoliths in basalt
Pyromorphite
Rose City
Spessartine
Staurolite schist
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