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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Albite (var. moonstone)
Amazonite
Apophyllite with prehnite
Attaway Ametrine
Beryl
Beryl (var. heliodor)
Bismuth
Bununu
Calcite
Corundum (var. sapphire)
Dolerite
Dyber Ametrine
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Kyanite after andalusite
Limestone with chert
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Opal bone
Paravauxite
Phosphophyllite
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz Gems
Quinn Canyon
Roebling Opal
Sandstone
Southwest Sunset
Stalagmite
Staunton
Vivianite with pyrite
Zagami
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