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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Aurichalcite with hemimorphite
Basaltic cinder
Beryl
Beryl
Beryl (var. heliodor)
Bununu
Cornetite
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Freedom Diamond
Hemimorphite
Johnstown
Limestone with chert
Malachite
Malachite slab
Manganoan calcite
Metatorbernite
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Opal bone
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. smoky quartz) with microcline
Quinn Canyon
Rhodochrosite
Roebling Opal
Sandstone
Sandstone
Pagination
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