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Smithsonian National Museum of Natural History
GeoGallery
Breadcrumb
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GeoGallery
Amphibole-rock
Beryl
Beryl (var. heliodor)
Bununu
Calcite
Corundum (var. ruby)
Corundum (var. ruby)
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Garnetiferous schist
Granite block
Limestone with chert
Nakhla
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Opal bone
Pegmatite
Peridot gemstones
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Smithsonite
Smithsonites
Zagami
Zircons
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