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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
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Estherville meteorite
Hemimorphite
Homestead
Hubnerite with quartz
Johnstown
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Rhodochrosite with quartz
Rhodonite
Sandstone
Tetrahedrite
Zagami
Zircon (var. cyrtolite)
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