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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Metaconglomerate
Nautilus Tourmaline Pendant
Nephrite Bowl
Nigerian tourmalines
Pyrophyllite
Quartz (var. amethyst)
Quartz Pendant
Rhyolite
Rhyolite pumice
Rose City
Spodumene (var. kunzite)
Spurrite
Unusual Gems
Unusual Gems
Unusual Gems
Zagami
Pagination
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