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Smithsonian National Museum of Natural History
GeoGallery
Breadcrumb
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Amphibole-rock
Banded iron formation
Beryl
Beryl (var. heliodor)
Bununu
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Garnetiferous schist
Granite block
Millerite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Olivine-gabbro
Pegmatite
Quartz (var. agate)
Zagami
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