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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Kyanite after andalusite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Olivine-basalt drill core
Pegmatite
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Peridotite xenoliths in basalt
Quartz (var. amethyst)
Quartz (var. landscape agate)
Smithsonite
Smithsonites
Stalagmite
Staunton
Unusual Gems
Wulfenite
Wulfenite
Wulfenite
Zagami
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