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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Albite (var. moonstone)
Amazonite
Apophyllite with prehnite
Beryl
Beryl (var. heliodor)
Bununu
Calcite
Corundum (var. sapphire)
Dolerite
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Fluorite
Fluorites
Imilac
Imilac
Kyanite after andalusite
Limestone with chert
Marble with wollastonite
Millerite
Millerite with hematite and quartz
Nautilus Tourmaline Pendant
Nifontovite
Nigerian tourmalines
North Chile
Opal
Opal bone
Peekskill
Pentahydroborite
Proustite cross (NMNH 12829-00)
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Stalagmite
Pagination
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